hopping during turn
01-31-2005, 01:46 PM
#21
Guest
Posts: n/a
Re: hopping during turn
You are asking 2 questions here. It is OK to ask two questions, but I wanted
you to be sure you understood that.
1st, it sounds like you are using 4WD on dry pavement, and the drive train
is binding up. This causes a hop or a wobble in the steering wheel as the
tires try to slip on the ground to release the EXCESSIVE stress you are
putting on it. If you continue to use 4WD on hard pavement, you WILL destroy
the tcase. It isn't a matter of IF, it's a matter of WHEN.
2nd, if the tcase and/or front axles is bound up, then it can remain in 4WD
after you have selected 2WD. The way to get out of this bind is to select
2WD (2HI), then go in Reverse for about 25 ft. If the front end is still
bound up, repeat Reverse. You might get it to drop out of the bind if you
could find a place on dirt or gravel.
WHAT IS HAPPENING is that the transfer case can not accomodate the speed
differences in the front and rear axles. Because of this fundamental truth,
then there will be stress built up in the tcase. If the tires are on dirt or
gravel, the stress is released because the tires are slipping. Because you
are driving on the street, the stress can not be released easily and you
feel the buckling and lurching that results from the tires slipping on the
pavement. The differentials (large bulb-shaped parts in the middle of the
axles) accomodate speed differences from left to right. These differences
come from the outside tire travelling further than the inside tire during a
turn. The front and rear tires also travel different arcs in a turn,
therefore they also turn at different speeds. So, in 4WD, all four tires can
turn at different speeds, this is especially true in the hard turns that you
described in your symptoms. Not only do the left and right side tires go
different speeds, but the front and rear tires go at different speeds as
well. The tcase is not designed to accomodate the differences from front to
rear, as the differentials are designed to do for right to left.
The front axle is connected to the driveshaft via a slip joint kind of
arrangement inside the axle itself. When you select 4WD, either 4HI or 4LO,
there is vacuum that is supplied via the transfer case to the front axle.
This vacuum activates a fork that moves the slip joint over splines on the
axle shaft. You are describing a symptom where the slip joint is not
releasing. A reason it is not is that the axle shafts are bound up, and you
unbind them by going backwards. You do not need speed, in fact speed is
probably problematic for inducing the slip joint to release. You could
experiment with gently turning the steering wheel from side to side. This
will cause the axle halves to go at slightly different speeds, and the slip
joint can slip more easily.
Your '88 YJ has the same limitations, by the way.
"JEEPR" <YJJPS@nospam@yahoo.ca> wrote in message
news:uPfLd.1748$Ck1.334219@news20.bellglobal.com.. .
> The old ladies 98 grand cherokee is hopping when making sharp rh or lh
> turns. She had not use the 4wd for a while until the recent snows.
> Could it be possible that the 4wd is stuck on even though 2 hi selected.
> Has anyone else experienced this
> What would be the cure.
> Mike Romain I would value your input on this one.
> Thanks to all for assistance.
>
> Have a 88 yj myself and love the tinkering. Just want to make sure I'm on
> the right trac.
>
> --
>
> Matt
> 0|||||||0
> Tact is the ability to describe others as they see themselves
>
>
you to be sure you understood that.
1st, it sounds like you are using 4WD on dry pavement, and the drive train
is binding up. This causes a hop or a wobble in the steering wheel as the
tires try to slip on the ground to release the EXCESSIVE stress you are
putting on it. If you continue to use 4WD on hard pavement, you WILL destroy
the tcase. It isn't a matter of IF, it's a matter of WHEN.
2nd, if the tcase and/or front axles is bound up, then it can remain in 4WD
after you have selected 2WD. The way to get out of this bind is to select
2WD (2HI), then go in Reverse for about 25 ft. If the front end is still
bound up, repeat Reverse. You might get it to drop out of the bind if you
could find a place on dirt or gravel.
WHAT IS HAPPENING is that the transfer case can not accomodate the speed
differences in the front and rear axles. Because of this fundamental truth,
then there will be stress built up in the tcase. If the tires are on dirt or
gravel, the stress is released because the tires are slipping. Because you
are driving on the street, the stress can not be released easily and you
feel the buckling and lurching that results from the tires slipping on the
pavement. The differentials (large bulb-shaped parts in the middle of the
axles) accomodate speed differences from left to right. These differences
come from the outside tire travelling further than the inside tire during a
turn. The front and rear tires also travel different arcs in a turn,
therefore they also turn at different speeds. So, in 4WD, all four tires can
turn at different speeds, this is especially true in the hard turns that you
described in your symptoms. Not only do the left and right side tires go
different speeds, but the front and rear tires go at different speeds as
well. The tcase is not designed to accomodate the differences from front to
rear, as the differentials are designed to do for right to left.
The front axle is connected to the driveshaft via a slip joint kind of
arrangement inside the axle itself. When you select 4WD, either 4HI or 4LO,
there is vacuum that is supplied via the transfer case to the front axle.
This vacuum activates a fork that moves the slip joint over splines on the
axle shaft. You are describing a symptom where the slip joint is not
releasing. A reason it is not is that the axle shafts are bound up, and you
unbind them by going backwards. You do not need speed, in fact speed is
probably problematic for inducing the slip joint to release. You could
experiment with gently turning the steering wheel from side to side. This
will cause the axle halves to go at slightly different speeds, and the slip
joint can slip more easily.
Your '88 YJ has the same limitations, by the way.
"JEEPR" <YJJPS@nospam@yahoo.ca> wrote in message
news:uPfLd.1748$Ck1.334219@news20.bellglobal.com.. .
> The old ladies 98 grand cherokee is hopping when making sharp rh or lh
> turns. She had not use the 4wd for a while until the recent snows.
> Could it be possible that the 4wd is stuck on even though 2 hi selected.
> Has anyone else experienced this
> What would be the cure.
> Mike Romain I would value your input on this one.
> Thanks to all for assistance.
>
> Have a 88 yj myself and love the tinkering. Just want to make sure I'm on
> the right trac.
>
> --
>
> Matt
> 0|||||||0
> Tact is the ability to describe others as they see themselves
>
>
01-31-2005, 01:46 PM
#22
Guest
Posts: n/a
Re: hopping during turn
You are asking 2 questions here. It is OK to ask two questions, but I wanted
you to be sure you understood that.
1st, it sounds like you are using 4WD on dry pavement, and the drive train
is binding up. This causes a hop or a wobble in the steering wheel as the
tires try to slip on the ground to release the EXCESSIVE stress you are
putting on it. If you continue to use 4WD on hard pavement, you WILL destroy
the tcase. It isn't a matter of IF, it's a matter of WHEN.
2nd, if the tcase and/or front axles is bound up, then it can remain in 4WD
after you have selected 2WD. The way to get out of this bind is to select
2WD (2HI), then go in Reverse for about 25 ft. If the front end is still
bound up, repeat Reverse. You might get it to drop out of the bind if you
could find a place on dirt or gravel.
WHAT IS HAPPENING is that the transfer case can not accomodate the speed
differences in the front and rear axles. Because of this fundamental truth,
then there will be stress built up in the tcase. If the tires are on dirt or
gravel, the stress is released because the tires are slipping. Because you
are driving on the street, the stress can not be released easily and you
feel the buckling and lurching that results from the tires slipping on the
pavement. The differentials (large bulb-shaped parts in the middle of the
axles) accomodate speed differences from left to right. These differences
come from the outside tire travelling further than the inside tire during a
turn. The front and rear tires also travel different arcs in a turn,
therefore they also turn at different speeds. So, in 4WD, all four tires can
turn at different speeds, this is especially true in the hard turns that you
described in your symptoms. Not only do the left and right side tires go
different speeds, but the front and rear tires go at different speeds as
well. The tcase is not designed to accomodate the differences from front to
rear, as the differentials are designed to do for right to left.
The front axle is connected to the driveshaft via a slip joint kind of
arrangement inside the axle itself. When you select 4WD, either 4HI or 4LO,
there is vacuum that is supplied via the transfer case to the front axle.
This vacuum activates a fork that moves the slip joint over splines on the
axle shaft. You are describing a symptom where the slip joint is not
releasing. A reason it is not is that the axle shafts are bound up, and you
unbind them by going backwards. You do not need speed, in fact speed is
probably problematic for inducing the slip joint to release. You could
experiment with gently turning the steering wheel from side to side. This
will cause the axle halves to go at slightly different speeds, and the slip
joint can slip more easily.
Your '88 YJ has the same limitations, by the way.
"JEEPR" <YJJPS@nospam@yahoo.ca> wrote in message
news:uPfLd.1748$Ck1.334219@news20.bellglobal.com.. .
> The old ladies 98 grand cherokee is hopping when making sharp rh or lh
> turns. She had not use the 4wd for a while until the recent snows.
> Could it be possible that the 4wd is stuck on even though 2 hi selected.
> Has anyone else experienced this
> What would be the cure.
> Mike Romain I would value your input on this one.
> Thanks to all for assistance.
>
> Have a 88 yj myself and love the tinkering. Just want to make sure I'm on
> the right trac.
>
> --
>
> Matt
> 0|||||||0
> Tact is the ability to describe others as they see themselves
>
>
you to be sure you understood that.
1st, it sounds like you are using 4WD on dry pavement, and the drive train
is binding up. This causes a hop or a wobble in the steering wheel as the
tires try to slip on the ground to release the EXCESSIVE stress you are
putting on it. If you continue to use 4WD on hard pavement, you WILL destroy
the tcase. It isn't a matter of IF, it's a matter of WHEN.
2nd, if the tcase and/or front axles is bound up, then it can remain in 4WD
after you have selected 2WD. The way to get out of this bind is to select
2WD (2HI), then go in Reverse for about 25 ft. If the front end is still
bound up, repeat Reverse. You might get it to drop out of the bind if you
could find a place on dirt or gravel.
WHAT IS HAPPENING is that the transfer case can not accomodate the speed
differences in the front and rear axles. Because of this fundamental truth,
then there will be stress built up in the tcase. If the tires are on dirt or
gravel, the stress is released because the tires are slipping. Because you
are driving on the street, the stress can not be released easily and you
feel the buckling and lurching that results from the tires slipping on the
pavement. The differentials (large bulb-shaped parts in the middle of the
axles) accomodate speed differences from left to right. These differences
come from the outside tire travelling further than the inside tire during a
turn. The front and rear tires also travel different arcs in a turn,
therefore they also turn at different speeds. So, in 4WD, all four tires can
turn at different speeds, this is especially true in the hard turns that you
described in your symptoms. Not only do the left and right side tires go
different speeds, but the front and rear tires go at different speeds as
well. The tcase is not designed to accomodate the differences from front to
rear, as the differentials are designed to do for right to left.
The front axle is connected to the driveshaft via a slip joint kind of
arrangement inside the axle itself. When you select 4WD, either 4HI or 4LO,
there is vacuum that is supplied via the transfer case to the front axle.
This vacuum activates a fork that moves the slip joint over splines on the
axle shaft. You are describing a symptom where the slip joint is not
releasing. A reason it is not is that the axle shafts are bound up, and you
unbind them by going backwards. You do not need speed, in fact speed is
probably problematic for inducing the slip joint to release. You could
experiment with gently turning the steering wheel from side to side. This
will cause the axle halves to go at slightly different speeds, and the slip
joint can slip more easily.
Your '88 YJ has the same limitations, by the way.
"JEEPR" <YJJPS@nospam@yahoo.ca> wrote in message
news:uPfLd.1748$Ck1.334219@news20.bellglobal.com.. .
> The old ladies 98 grand cherokee is hopping when making sharp rh or lh
> turns. She had not use the 4wd for a while until the recent snows.
> Could it be possible that the 4wd is stuck on even though 2 hi selected.
> Has anyone else experienced this
> What would be the cure.
> Mike Romain I would value your input on this one.
> Thanks to all for assistance.
>
> Have a 88 yj myself and love the tinkering. Just want to make sure I'm on
> the right trac.
>
> --
>
> Matt
> 0|||||||0
> Tact is the ability to describe others as they see themselves
>
>
02-01-2005, 12:39 AM
#23
Guest
Posts: n/a
Re: hopping during turn
It now appears that the shifter is out of sequence, when selected to 2 hi
indicates part time, when selected part time indicates full time, when
selected full time acts like neutral, when selected 4 lo indicates part time
how's that for weird
Jeff thanks for your help tried the back up thing no joy, don't give up on
me if you got anymore hints drop them on me
--
Matt
0|||||||0
Tact is the ability to describe others as they see themselves
"Jeff Strickland" <spamcatcher@yahoo.net> wrote in message
news:TISdnRUPo8jL4GPcRVn-jA@ez2.net...
> You are asking 2 questions here. It is OK to ask two questions, but I
wanted
> you to be sure you understood that.
>
>
> 1st, it sounds like you are using 4WD on dry pavement, and the drive train
> is binding up. This causes a hop or a wobble in the steering wheel as the
> tires try to slip on the ground to release the EXCESSIVE stress you are
> putting on it. If you continue to use 4WD on hard pavement, you WILL
destroy
> the tcase. It isn't a matter of IF, it's a matter of WHEN.
>
> 2nd, if the tcase and/or front axles is bound up, then it can remain in
4WD
> after you have selected 2WD. The way to get out of this bind is to select
> 2WD (2HI), then go in Reverse for about 25 ft. If the front end is still
> bound up, repeat Reverse. You might get it to drop out of the bind if you
> could find a place on dirt or gravel.
>
>
> WHAT IS HAPPENING is that the transfer case can not accomodate the speed
> differences in the front and rear axles. Because of this fundamental
truth,
> then there will be stress built up in the tcase. If the tires are on dirt
or
> gravel, the stress is released because the tires are slipping. Because you
> are driving on the street, the stress can not be released easily and you
> feel the buckling and lurching that results from the tires slipping on the
> pavement. The differentials (large bulb-shaped parts in the middle of the
> axles) accomodate speed differences from left to right. These differences
> come from the outside tire travelling further than the inside tire during
a
> turn. The front and rear tires also travel different arcs in a turn,
> therefore they also turn at different speeds. So, in 4WD, all four tires
can
> turn at different speeds, this is especially true in the hard turns that
you
> described in your symptoms. Not only do the left and right side tires go
> different speeds, but the front and rear tires go at different speeds as
> well. The tcase is not designed to accomodate the differences from front
to
> rear, as the differentials are designed to do for right to left.
>
> The front axle is connected to the driveshaft via a slip joint kind of
> arrangement inside the axle itself. When you select 4WD, either 4HI or
4LO,
> there is vacuum that is supplied via the transfer case to the front axle.
> This vacuum activates a fork that moves the slip joint over splines on the
> axle shaft. You are describing a symptom where the slip joint is not
> releasing. A reason it is not is that the axle shafts are bound up, and
you
> unbind them by going backwards. You do not need speed, in fact speed is
> probably problematic for inducing the slip joint to release. You could
> experiment with gently turning the steering wheel from side to side. This
> will cause the axle halves to go at slightly different speeds, and the
slip
> joint can slip more easily.
>
> Your '88 YJ has the same limitations, by the way.
>
>
>
>
>
>
> "JEEPR" <YJJPS@nospam@yahoo.ca> wrote in message
> news:uPfLd.1748$Ck1.334219@news20.bellglobal.com.. .
> > The old ladies 98 grand cherokee is hopping when making sharp rh or lh
> > turns. She had not use the 4wd for a while until the recent snows.
> > Could it be possible that the 4wd is stuck on even though 2 hi selected.
> > Has anyone else experienced this
> > What would be the cure.
> > Mike Romain I would value your input on this one.
> > Thanks to all for assistance.
> >
> > Have a 88 yj myself and love the tinkering. Just want to make sure I'm
on
> > the right trac.
> >
> > --
> >
> > Matt
> > 0|||||||0
> > Tact is the ability to describe others as they see themselves
> >
> >
>
>
indicates part time, when selected part time indicates full time, when
selected full time acts like neutral, when selected 4 lo indicates part time
how's that for weird
Jeff thanks for your help tried the back up thing no joy, don't give up on
me if you got anymore hints drop them on me
--
Matt
0|||||||0
Tact is the ability to describe others as they see themselves
"Jeff Strickland" <spamcatcher@yahoo.net> wrote in message
news:TISdnRUPo8jL4GPcRVn-jA@ez2.net...
> You are asking 2 questions here. It is OK to ask two questions, but I
wanted
> you to be sure you understood that.
>
>
> 1st, it sounds like you are using 4WD on dry pavement, and the drive train
> is binding up. This causes a hop or a wobble in the steering wheel as the
> tires try to slip on the ground to release the EXCESSIVE stress you are
> putting on it. If you continue to use 4WD on hard pavement, you WILL
destroy
> the tcase. It isn't a matter of IF, it's a matter of WHEN.
>
> 2nd, if the tcase and/or front axles is bound up, then it can remain in
4WD
> after you have selected 2WD. The way to get out of this bind is to select
> 2WD (2HI), then go in Reverse for about 25 ft. If the front end is still
> bound up, repeat Reverse. You might get it to drop out of the bind if you
> could find a place on dirt or gravel.
>
>
> WHAT IS HAPPENING is that the transfer case can not accomodate the speed
> differences in the front and rear axles. Because of this fundamental
truth,
> then there will be stress built up in the tcase. If the tires are on dirt
or
> gravel, the stress is released because the tires are slipping. Because you
> are driving on the street, the stress can not be released easily and you
> feel the buckling and lurching that results from the tires slipping on the
> pavement. The differentials (large bulb-shaped parts in the middle of the
> axles) accomodate speed differences from left to right. These differences
> come from the outside tire travelling further than the inside tire during
a
> turn. The front and rear tires also travel different arcs in a turn,
> therefore they also turn at different speeds. So, in 4WD, all four tires
can
> turn at different speeds, this is especially true in the hard turns that
you
> described in your symptoms. Not only do the left and right side tires go
> different speeds, but the front and rear tires go at different speeds as
> well. The tcase is not designed to accomodate the differences from front
to
> rear, as the differentials are designed to do for right to left.
>
> The front axle is connected to the driveshaft via a slip joint kind of
> arrangement inside the axle itself. When you select 4WD, either 4HI or
4LO,
> there is vacuum that is supplied via the transfer case to the front axle.
> This vacuum activates a fork that moves the slip joint over splines on the
> axle shaft. You are describing a symptom where the slip joint is not
> releasing. A reason it is not is that the axle shafts are bound up, and
you
> unbind them by going backwards. You do not need speed, in fact speed is
> probably problematic for inducing the slip joint to release. You could
> experiment with gently turning the steering wheel from side to side. This
> will cause the axle halves to go at slightly different speeds, and the
slip
> joint can slip more easily.
>
> Your '88 YJ has the same limitations, by the way.
>
>
>
>
>
>
> "JEEPR" <YJJPS@nospam@yahoo.ca> wrote in message
> news:uPfLd.1748$Ck1.334219@news20.bellglobal.com.. .
> > The old ladies 98 grand cherokee is hopping when making sharp rh or lh
> > turns. She had not use the 4wd for a while until the recent snows.
> > Could it be possible that the 4wd is stuck on even though 2 hi selected.
> > Has anyone else experienced this
> > What would be the cure.
> > Mike Romain I would value your input on this one.
> > Thanks to all for assistance.
> >
> > Have a 88 yj myself and love the tinkering. Just want to make sure I'm
on
> > the right trac.
> >
> > --
> >
> > Matt
> > 0|||||||0
> > Tact is the ability to describe others as they see themselves
> >
> >
>
>
02-01-2005, 12:39 AM
#24
Guest
Posts: n/a
Re: hopping during turn
It now appears that the shifter is out of sequence, when selected to 2 hi
indicates part time, when selected part time indicates full time, when
selected full time acts like neutral, when selected 4 lo indicates part time
how's that for weird
Jeff thanks for your help tried the back up thing no joy, don't give up on
me if you got anymore hints drop them on me
--
Matt
0|||||||0
Tact is the ability to describe others as they see themselves
"Jeff Strickland" <spamcatcher@yahoo.net> wrote in message
news:TISdnRUPo8jL4GPcRVn-jA@ez2.net...
> You are asking 2 questions here. It is OK to ask two questions, but I
wanted
> you to be sure you understood that.
>
>
> 1st, it sounds like you are using 4WD on dry pavement, and the drive train
> is binding up. This causes a hop or a wobble in the steering wheel as the
> tires try to slip on the ground to release the EXCESSIVE stress you are
> putting on it. If you continue to use 4WD on hard pavement, you WILL
destroy
> the tcase. It isn't a matter of IF, it's a matter of WHEN.
>
> 2nd, if the tcase and/or front axles is bound up, then it can remain in
4WD
> after you have selected 2WD. The way to get out of this bind is to select
> 2WD (2HI), then go in Reverse for about 25 ft. If the front end is still
> bound up, repeat Reverse. You might get it to drop out of the bind if you
> could find a place on dirt or gravel.
>
>
> WHAT IS HAPPENING is that the transfer case can not accomodate the speed
> differences in the front and rear axles. Because of this fundamental
truth,
> then there will be stress built up in the tcase. If the tires are on dirt
or
> gravel, the stress is released because the tires are slipping. Because you
> are driving on the street, the stress can not be released easily and you
> feel the buckling and lurching that results from the tires slipping on the
> pavement. The differentials (large bulb-shaped parts in the middle of the
> axles) accomodate speed differences from left to right. These differences
> come from the outside tire travelling further than the inside tire during
a
> turn. The front and rear tires also travel different arcs in a turn,
> therefore they also turn at different speeds. So, in 4WD, all four tires
can
> turn at different speeds, this is especially true in the hard turns that
you
> described in your symptoms. Not only do the left and right side tires go
> different speeds, but the front and rear tires go at different speeds as
> well. The tcase is not designed to accomodate the differences from front
to
> rear, as the differentials are designed to do for right to left.
>
> The front axle is connected to the driveshaft via a slip joint kind of
> arrangement inside the axle itself. When you select 4WD, either 4HI or
4LO,
> there is vacuum that is supplied via the transfer case to the front axle.
> This vacuum activates a fork that moves the slip joint over splines on the
> axle shaft. You are describing a symptom where the slip joint is not
> releasing. A reason it is not is that the axle shafts are bound up, and
you
> unbind them by going backwards. You do not need speed, in fact speed is
> probably problematic for inducing the slip joint to release. You could
> experiment with gently turning the steering wheel from side to side. This
> will cause the axle halves to go at slightly different speeds, and the
slip
> joint can slip more easily.
>
> Your '88 YJ has the same limitations, by the way.
>
>
>
>
>
>
> "JEEPR" <YJJPS@nospam@yahoo.ca> wrote in message
> news:uPfLd.1748$Ck1.334219@news20.bellglobal.com.. .
> > The old ladies 98 grand cherokee is hopping when making sharp rh or lh
> > turns. She had not use the 4wd for a while until the recent snows.
> > Could it be possible that the 4wd is stuck on even though 2 hi selected.
> > Has anyone else experienced this
> > What would be the cure.
> > Mike Romain I would value your input on this one.
> > Thanks to all for assistance.
> >
> > Have a 88 yj myself and love the tinkering. Just want to make sure I'm
on
> > the right trac.
> >
> > --
> >
> > Matt
> > 0|||||||0
> > Tact is the ability to describe others as they see themselves
> >
> >
>
>
indicates part time, when selected part time indicates full time, when
selected full time acts like neutral, when selected 4 lo indicates part time
how's that for weird
Jeff thanks for your help tried the back up thing no joy, don't give up on
me if you got anymore hints drop them on me
--
Matt
0|||||||0
Tact is the ability to describe others as they see themselves
"Jeff Strickland" <spamcatcher@yahoo.net> wrote in message
news:TISdnRUPo8jL4GPcRVn-jA@ez2.net...
> You are asking 2 questions here. It is OK to ask two questions, but I
wanted
> you to be sure you understood that.
>
>
> 1st, it sounds like you are using 4WD on dry pavement, and the drive train
> is binding up. This causes a hop or a wobble in the steering wheel as the
> tires try to slip on the ground to release the EXCESSIVE stress you are
> putting on it. If you continue to use 4WD on hard pavement, you WILL
destroy
> the tcase. It isn't a matter of IF, it's a matter of WHEN.
>
> 2nd, if the tcase and/or front axles is bound up, then it can remain in
4WD
> after you have selected 2WD. The way to get out of this bind is to select
> 2WD (2HI), then go in Reverse for about 25 ft. If the front end is still
> bound up, repeat Reverse. You might get it to drop out of the bind if you
> could find a place on dirt or gravel.
>
>
> WHAT IS HAPPENING is that the transfer case can not accomodate the speed
> differences in the front and rear axles. Because of this fundamental
truth,
> then there will be stress built up in the tcase. If the tires are on dirt
or
> gravel, the stress is released because the tires are slipping. Because you
> are driving on the street, the stress can not be released easily and you
> feel the buckling and lurching that results from the tires slipping on the
> pavement. The differentials (large bulb-shaped parts in the middle of the
> axles) accomodate speed differences from left to right. These differences
> come from the outside tire travelling further than the inside tire during
a
> turn. The front and rear tires also travel different arcs in a turn,
> therefore they also turn at different speeds. So, in 4WD, all four tires
can
> turn at different speeds, this is especially true in the hard turns that
you
> described in your symptoms. Not only do the left and right side tires go
> different speeds, but the front and rear tires go at different speeds as
> well. The tcase is not designed to accomodate the differences from front
to
> rear, as the differentials are designed to do for right to left.
>
> The front axle is connected to the driveshaft via a slip joint kind of
> arrangement inside the axle itself. When you select 4WD, either 4HI or
4LO,
> there is vacuum that is supplied via the transfer case to the front axle.
> This vacuum activates a fork that moves the slip joint over splines on the
> axle shaft. You are describing a symptom where the slip joint is not
> releasing. A reason it is not is that the axle shafts are bound up, and
you
> unbind them by going backwards. You do not need speed, in fact speed is
> probably problematic for inducing the slip joint to release. You could
> experiment with gently turning the steering wheel from side to side. This
> will cause the axle halves to go at slightly different speeds, and the
slip
> joint can slip more easily.
>
> Your '88 YJ has the same limitations, by the way.
>
>
>
>
>
>
> "JEEPR" <YJJPS@nospam@yahoo.ca> wrote in message
> news:uPfLd.1748$Ck1.334219@news20.bellglobal.com.. .
> > The old ladies 98 grand cherokee is hopping when making sharp rh or lh
> > turns. She had not use the 4wd for a while until the recent snows.
> > Could it be possible that the 4wd is stuck on even though 2 hi selected.
> > Has anyone else experienced this
> > What would be the cure.
> > Mike Romain I would value your input on this one.
> > Thanks to all for assistance.
> >
> > Have a 88 yj myself and love the tinkering. Just want to make sure I'm
on
> > the right trac.
> >
> > --
> >
> > Matt
> > 0|||||||0
> > Tact is the ability to describe others as they see themselves
> >
> >
>
>
02-01-2005, 12:39 AM
#25
Guest
Posts: n/a
Re: hopping during turn
It now appears that the shifter is out of sequence, when selected to 2 hi
indicates part time, when selected part time indicates full time, when
selected full time acts like neutral, when selected 4 lo indicates part time
how's that for weird
Jeff thanks for your help tried the back up thing no joy, don't give up on
me if you got anymore hints drop them on me
--
Matt
0|||||||0
Tact is the ability to describe others as they see themselves
"Jeff Strickland" <spamcatcher@yahoo.net> wrote in message
news:TISdnRUPo8jL4GPcRVn-jA@ez2.net...
> You are asking 2 questions here. It is OK to ask two questions, but I
wanted
> you to be sure you understood that.
>
>
> 1st, it sounds like you are using 4WD on dry pavement, and the drive train
> is binding up. This causes a hop or a wobble in the steering wheel as the
> tires try to slip on the ground to release the EXCESSIVE stress you are
> putting on it. If you continue to use 4WD on hard pavement, you WILL
destroy
> the tcase. It isn't a matter of IF, it's a matter of WHEN.
>
> 2nd, if the tcase and/or front axles is bound up, then it can remain in
4WD
> after you have selected 2WD. The way to get out of this bind is to select
> 2WD (2HI), then go in Reverse for about 25 ft. If the front end is still
> bound up, repeat Reverse. You might get it to drop out of the bind if you
> could find a place on dirt or gravel.
>
>
> WHAT IS HAPPENING is that the transfer case can not accomodate the speed
> differences in the front and rear axles. Because of this fundamental
truth,
> then there will be stress built up in the tcase. If the tires are on dirt
or
> gravel, the stress is released because the tires are slipping. Because you
> are driving on the street, the stress can not be released easily and you
> feel the buckling and lurching that results from the tires slipping on the
> pavement. The differentials (large bulb-shaped parts in the middle of the
> axles) accomodate speed differences from left to right. These differences
> come from the outside tire travelling further than the inside tire during
a
> turn. The front and rear tires also travel different arcs in a turn,
> therefore they also turn at different speeds. So, in 4WD, all four tires
can
> turn at different speeds, this is especially true in the hard turns that
you
> described in your symptoms. Not only do the left and right side tires go
> different speeds, but the front and rear tires go at different speeds as
> well. The tcase is not designed to accomodate the differences from front
to
> rear, as the differentials are designed to do for right to left.
>
> The front axle is connected to the driveshaft via a slip joint kind of
> arrangement inside the axle itself. When you select 4WD, either 4HI or
4LO,
> there is vacuum that is supplied via the transfer case to the front axle.
> This vacuum activates a fork that moves the slip joint over splines on the
> axle shaft. You are describing a symptom where the slip joint is not
> releasing. A reason it is not is that the axle shafts are bound up, and
you
> unbind them by going backwards. You do not need speed, in fact speed is
> probably problematic for inducing the slip joint to release. You could
> experiment with gently turning the steering wheel from side to side. This
> will cause the axle halves to go at slightly different speeds, and the
slip
> joint can slip more easily.
>
> Your '88 YJ has the same limitations, by the way.
>
>
>
>
>
>
> "JEEPR" <YJJPS@nospam@yahoo.ca> wrote in message
> news:uPfLd.1748$Ck1.334219@news20.bellglobal.com.. .
> > The old ladies 98 grand cherokee is hopping when making sharp rh or lh
> > turns. She had not use the 4wd for a while until the recent snows.
> > Could it be possible that the 4wd is stuck on even though 2 hi selected.
> > Has anyone else experienced this
> > What would be the cure.
> > Mike Romain I would value your input on this one.
> > Thanks to all for assistance.
> >
> > Have a 88 yj myself and love the tinkering. Just want to make sure I'm
on
> > the right trac.
> >
> > --
> >
> > Matt
> > 0|||||||0
> > Tact is the ability to describe others as they see themselves
> >
> >
>
>
indicates part time, when selected part time indicates full time, when
selected full time acts like neutral, when selected 4 lo indicates part time
how's that for weird
Jeff thanks for your help tried the back up thing no joy, don't give up on
me if you got anymore hints drop them on me
--
Matt
0|||||||0
Tact is the ability to describe others as they see themselves
"Jeff Strickland" <spamcatcher@yahoo.net> wrote in message
news:TISdnRUPo8jL4GPcRVn-jA@ez2.net...
> You are asking 2 questions here. It is OK to ask two questions, but I
wanted
> you to be sure you understood that.
>
>
> 1st, it sounds like you are using 4WD on dry pavement, and the drive train
> is binding up. This causes a hop or a wobble in the steering wheel as the
> tires try to slip on the ground to release the EXCESSIVE stress you are
> putting on it. If you continue to use 4WD on hard pavement, you WILL
destroy
> the tcase. It isn't a matter of IF, it's a matter of WHEN.
>
> 2nd, if the tcase and/or front axles is bound up, then it can remain in
4WD
> after you have selected 2WD. The way to get out of this bind is to select
> 2WD (2HI), then go in Reverse for about 25 ft. If the front end is still
> bound up, repeat Reverse. You might get it to drop out of the bind if you
> could find a place on dirt or gravel.
>
>
> WHAT IS HAPPENING is that the transfer case can not accomodate the speed
> differences in the front and rear axles. Because of this fundamental
truth,
> then there will be stress built up in the tcase. If the tires are on dirt
or
> gravel, the stress is released because the tires are slipping. Because you
> are driving on the street, the stress can not be released easily and you
> feel the buckling and lurching that results from the tires slipping on the
> pavement. The differentials (large bulb-shaped parts in the middle of the
> axles) accomodate speed differences from left to right. These differences
> come from the outside tire travelling further than the inside tire during
a
> turn. The front and rear tires also travel different arcs in a turn,
> therefore they also turn at different speeds. So, in 4WD, all four tires
can
> turn at different speeds, this is especially true in the hard turns that
you
> described in your symptoms. Not only do the left and right side tires go
> different speeds, but the front and rear tires go at different speeds as
> well. The tcase is not designed to accomodate the differences from front
to
> rear, as the differentials are designed to do for right to left.
>
> The front axle is connected to the driveshaft via a slip joint kind of
> arrangement inside the axle itself. When you select 4WD, either 4HI or
4LO,
> there is vacuum that is supplied via the transfer case to the front axle.
> This vacuum activates a fork that moves the slip joint over splines on the
> axle shaft. You are describing a symptom where the slip joint is not
> releasing. A reason it is not is that the axle shafts are bound up, and
you
> unbind them by going backwards. You do not need speed, in fact speed is
> probably problematic for inducing the slip joint to release. You could
> experiment with gently turning the steering wheel from side to side. This
> will cause the axle halves to go at slightly different speeds, and the
slip
> joint can slip more easily.
>
> Your '88 YJ has the same limitations, by the way.
>
>
>
>
>
>
> "JEEPR" <YJJPS@nospam@yahoo.ca> wrote in message
> news:uPfLd.1748$Ck1.334219@news20.bellglobal.com.. .
> > The old ladies 98 grand cherokee is hopping when making sharp rh or lh
> > turns. She had not use the 4wd for a while until the recent snows.
> > Could it be possible that the 4wd is stuck on even though 2 hi selected.
> > Has anyone else experienced this
> > What would be the cure.
> > Mike Romain I would value your input on this one.
> > Thanks to all for assistance.
> >
> > Have a 88 yj myself and love the tinkering. Just want to make sure I'm
on
> > the right trac.
> >
> > --
> >
> > Matt
> > 0|||||||0
> > Tact is the ability to describe others as they see themselves
> >
> >
>
>
02-01-2005, 08:58 AM
#26
Guest
Posts: n/a
Re: hopping during turn
Ahh, an easy fix at least!
That either means you have the linkage out of adjustment which is a
quick fix down under or you have a busted motor or tranny mount which
has shifted things so the linkage just thinks it is out of adjustment
which also is a relatively easy fix.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
JEEPR wrote:
>
> It now appears that the shifter is out of sequence, when selected to 2 hi
> indicates part time, when selected part time indicates full time, when
> selected full time acts like neutral, when selected 4 lo indicates part time
> how's that for weird
>
> Jeff thanks for your help tried the back up thing no joy, don't give up on
> me if you got anymore hints drop them on me
> --
>
> Matt
> 0|||||||0
> Tact is the ability to describe others as they see themselves
> "Jeff Strickland" <spamcatcher@yahoo.net> wrote in message
> news:TISdnRUPo8jL4GPcRVn-jA@ez2.net...
> > You are asking 2 questions here. It is OK to ask two questions, but I
> wanted
> > you to be sure you understood that.
> >
> >
> > 1st, it sounds like you are using 4WD on dry pavement, and the drive train
> > is binding up. This causes a hop or a wobble in the steering wheel as the
> > tires try to slip on the ground to release the EXCESSIVE stress you are
> > putting on it. If you continue to use 4WD on hard pavement, you WILL
> destroy
> > the tcase. It isn't a matter of IF, it's a matter of WHEN.
> >
> > 2nd, if the tcase and/or front axles is bound up, then it can remain in
> 4WD
> > after you have selected 2WD. The way to get out of this bind is to select
> > 2WD (2HI), then go in Reverse for about 25 ft. If the front end is still
> > bound up, repeat Reverse. You might get it to drop out of the bind if you
> > could find a place on dirt or gravel.
> >
> >
> > WHAT IS HAPPENING is that the transfer case can not accomodate the speed
> > differences in the front and rear axles. Because of this fundamental
> truth,
> > then there will be stress built up in the tcase. If the tires are on dirt
> or
> > gravel, the stress is released because the tires are slipping. Because you
> > are driving on the street, the stress can not be released easily and you
> > feel the buckling and lurching that results from the tires slipping on the
> > pavement. The differentials (large bulb-shaped parts in the middle of the
> > axles) accomodate speed differences from left to right. These differences
>
> > come from the outside tire travelling further than the inside tire during
> a
> > turn. The front and rear tires also travel different arcs in a turn,
> > therefore they also turn at different speeds. So, in 4WD, all four tires
> can
> > turn at different speeds, this is especially true in the hard turns that
> you
> > described in your symptoms. Not only do the left and right side tires go
> > different speeds, but the front and rear tires go at different speeds as
> > well. The tcase is not designed to accomodate the differences from front
> to
> > rear, as the differentials are designed to do for right to left.
> >
> > The front axle is connected to the driveshaft via a slip joint kind of
> > arrangement inside the axle itself. When you select 4WD, either 4HI or
> 4LO,
> > there is vacuum that is supplied via the transfer case to the front axle.
> > This vacuum activates a fork that moves the slip joint over splines on the
> > axle shaft. You are describing a symptom where the slip joint is not
> > releasing. A reason it is not is that the axle shafts are bound up, and
> you
> > unbind them by going backwards. You do not need speed, in fact speed is
> > probably problematic for inducing the slip joint to release. You could
> > experiment with gently turning the steering wheel from side to side. This
> > will cause the axle halves to go at slightly different speeds, and the
> slip
> > joint can slip more easily.
> >
> > Your '88 YJ has the same limitations, by the way.
> >
> >
> >
> >
> >
> >
> > "JEEPR" <YJJPS@nospam@yahoo.ca> wrote in message
> > news:uPfLd.1748$Ck1.334219@news20.bellglobal.com.. .
> > > The old ladies 98 grand cherokee is hopping when making sharp rh or lh
> > > turns. She had not use the 4wd for a while until the recent snows.
> > > Could it be possible that the 4wd is stuck on even though 2 hi selected.
> > > Has anyone else experienced this
> > > What would be the cure.
> > > Mike Romain I would value your input on this one.
> > > Thanks to all for assistance.
> > >
> > > Have a 88 yj myself and love the tinkering. Just want to make sure I'm
> on
> > > the right trac.
> > >
> > > --
> > >
> > > Matt
> > > 0|||||||0
> > > Tact is the ability to describe others as they see themselves
> > >
> > >
> >
> >
That either means you have the linkage out of adjustment which is a
quick fix down under or you have a busted motor or tranny mount which
has shifted things so the linkage just thinks it is out of adjustment
which also is a relatively easy fix.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
JEEPR wrote:
>
> It now appears that the shifter is out of sequence, when selected to 2 hi
> indicates part time, when selected part time indicates full time, when
> selected full time acts like neutral, when selected 4 lo indicates part time
> how's that for weird
>
> Jeff thanks for your help tried the back up thing no joy, don't give up on
> me if you got anymore hints drop them on me
> --
>
> Matt
> 0|||||||0
> Tact is the ability to describe others as they see themselves
> "Jeff Strickland" <spamcatcher@yahoo.net> wrote in message
> news:TISdnRUPo8jL4GPcRVn-jA@ez2.net...
> > You are asking 2 questions here. It is OK to ask two questions, but I
> wanted
> > you to be sure you understood that.
> >
> >
> > 1st, it sounds like you are using 4WD on dry pavement, and the drive train
> > is binding up. This causes a hop or a wobble in the steering wheel as the
> > tires try to slip on the ground to release the EXCESSIVE stress you are
> > putting on it. If you continue to use 4WD on hard pavement, you WILL
> destroy
> > the tcase. It isn't a matter of IF, it's a matter of WHEN.
> >
> > 2nd, if the tcase and/or front axles is bound up, then it can remain in
> 4WD
> > after you have selected 2WD. The way to get out of this bind is to select
> > 2WD (2HI), then go in Reverse for about 25 ft. If the front end is still
> > bound up, repeat Reverse. You might get it to drop out of the bind if you
> > could find a place on dirt or gravel.
> >
> >
> > WHAT IS HAPPENING is that the transfer case can not accomodate the speed
> > differences in the front and rear axles. Because of this fundamental
> truth,
> > then there will be stress built up in the tcase. If the tires are on dirt
> or
> > gravel, the stress is released because the tires are slipping. Because you
> > are driving on the street, the stress can not be released easily and you
> > feel the buckling and lurching that results from the tires slipping on the
> > pavement. The differentials (large bulb-shaped parts in the middle of the
> > axles) accomodate speed differences from left to right. These differences
>
> > come from the outside tire travelling further than the inside tire during
> a
> > turn. The front and rear tires also travel different arcs in a turn,
> > therefore they also turn at different speeds. So, in 4WD, all four tires
> can
> > turn at different speeds, this is especially true in the hard turns that
> you
> > described in your symptoms. Not only do the left and right side tires go
> > different speeds, but the front and rear tires go at different speeds as
> > well. The tcase is not designed to accomodate the differences from front
> to
> > rear, as the differentials are designed to do for right to left.
> >
> > The front axle is connected to the driveshaft via a slip joint kind of
> > arrangement inside the axle itself. When you select 4WD, either 4HI or
> 4LO,
> > there is vacuum that is supplied via the transfer case to the front axle.
> > This vacuum activates a fork that moves the slip joint over splines on the
> > axle shaft. You are describing a symptom where the slip joint is not
> > releasing. A reason it is not is that the axle shafts are bound up, and
> you
> > unbind them by going backwards. You do not need speed, in fact speed is
> > probably problematic for inducing the slip joint to release. You could
> > experiment with gently turning the steering wheel from side to side. This
> > will cause the axle halves to go at slightly different speeds, and the
> slip
> > joint can slip more easily.
> >
> > Your '88 YJ has the same limitations, by the way.
> >
> >
> >
> >
> >
> >
> > "JEEPR" <YJJPS@nospam@yahoo.ca> wrote in message
> > news:uPfLd.1748$Ck1.334219@news20.bellglobal.com.. .
> > > The old ladies 98 grand cherokee is hopping when making sharp rh or lh
> > > turns. She had not use the 4wd for a while until the recent snows.
> > > Could it be possible that the 4wd is stuck on even though 2 hi selected.
> > > Has anyone else experienced this
> > > What would be the cure.
> > > Mike Romain I would value your input on this one.
> > > Thanks to all for assistance.
> > >
> > > Have a 88 yj myself and love the tinkering. Just want to make sure I'm
> on
> > > the right trac.
> > >
> > > --
> > >
> > > Matt
> > > 0|||||||0
> > > Tact is the ability to describe others as they see themselves
> > >
> > >
> >
> >
02-01-2005, 08:58 AM
#27
Guest
Posts: n/a
Re: hopping during turn
Ahh, an easy fix at least!
That either means you have the linkage out of adjustment which is a
quick fix down under or you have a busted motor or tranny mount which
has shifted things so the linkage just thinks it is out of adjustment
which also is a relatively easy fix.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
JEEPR wrote:
>
> It now appears that the shifter is out of sequence, when selected to 2 hi
> indicates part time, when selected part time indicates full time, when
> selected full time acts like neutral, when selected 4 lo indicates part time
> how's that for weird
>
> Jeff thanks for your help tried the back up thing no joy, don't give up on
> me if you got anymore hints drop them on me
> --
>
> Matt
> 0|||||||0
> Tact is the ability to describe others as they see themselves
> "Jeff Strickland" <spamcatcher@yahoo.net> wrote in message
> news:TISdnRUPo8jL4GPcRVn-jA@ez2.net...
> > You are asking 2 questions here. It is OK to ask two questions, but I
> wanted
> > you to be sure you understood that.
> >
> >
> > 1st, it sounds like you are using 4WD on dry pavement, and the drive train
> > is binding up. This causes a hop or a wobble in the steering wheel as the
> > tires try to slip on the ground to release the EXCESSIVE stress you are
> > putting on it. If you continue to use 4WD on hard pavement, you WILL
> destroy
> > the tcase. It isn't a matter of IF, it's a matter of WHEN.
> >
> > 2nd, if the tcase and/or front axles is bound up, then it can remain in
> 4WD
> > after you have selected 2WD. The way to get out of this bind is to select
> > 2WD (2HI), then go in Reverse for about 25 ft. If the front end is still
> > bound up, repeat Reverse. You might get it to drop out of the bind if you
> > could find a place on dirt or gravel.
> >
> >
> > WHAT IS HAPPENING is that the transfer case can not accomodate the speed
> > differences in the front and rear axles. Because of this fundamental
> truth,
> > then there will be stress built up in the tcase. If the tires are on dirt
> or
> > gravel, the stress is released because the tires are slipping. Because you
> > are driving on the street, the stress can not be released easily and you
> > feel the buckling and lurching that results from the tires slipping on the
> > pavement. The differentials (large bulb-shaped parts in the middle of the
> > axles) accomodate speed differences from left to right. These differences
>
> > come from the outside tire travelling further than the inside tire during
> a
> > turn. The front and rear tires also travel different arcs in a turn,
> > therefore they also turn at different speeds. So, in 4WD, all four tires
> can
> > turn at different speeds, this is especially true in the hard turns that
> you
> > described in your symptoms. Not only do the left and right side tires go
> > different speeds, but the front and rear tires go at different speeds as
> > well. The tcase is not designed to accomodate the differences from front
> to
> > rear, as the differentials are designed to do for right to left.
> >
> > The front axle is connected to the driveshaft via a slip joint kind of
> > arrangement inside the axle itself. When you select 4WD, either 4HI or
> 4LO,
> > there is vacuum that is supplied via the transfer case to the front axle.
> > This vacuum activates a fork that moves the slip joint over splines on the
> > axle shaft. You are describing a symptom where the slip joint is not
> > releasing. A reason it is not is that the axle shafts are bound up, and
> you
> > unbind them by going backwards. You do not need speed, in fact speed is
> > probably problematic for inducing the slip joint to release. You could
> > experiment with gently turning the steering wheel from side to side. This
> > will cause the axle halves to go at slightly different speeds, and the
> slip
> > joint can slip more easily.
> >
> > Your '88 YJ has the same limitations, by the way.
> >
> >
> >
> >
> >
> >
> > "JEEPR" <YJJPS@nospam@yahoo.ca> wrote in message
> > news:uPfLd.1748$Ck1.334219@news20.bellglobal.com.. .
> > > The old ladies 98 grand cherokee is hopping when making sharp rh or lh
> > > turns. She had not use the 4wd for a while until the recent snows.
> > > Could it be possible that the 4wd is stuck on even though 2 hi selected.
> > > Has anyone else experienced this
> > > What would be the cure.
> > > Mike Romain I would value your input on this one.
> > > Thanks to all for assistance.
> > >
> > > Have a 88 yj myself and love the tinkering. Just want to make sure I'm
> on
> > > the right trac.
> > >
> > > --
> > >
> > > Matt
> > > 0|||||||0
> > > Tact is the ability to describe others as they see themselves
> > >
> > >
> >
> >
That either means you have the linkage out of adjustment which is a
quick fix down under or you have a busted motor or tranny mount which
has shifted things so the linkage just thinks it is out of adjustment
which also is a relatively easy fix.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
JEEPR wrote:
>
> It now appears that the shifter is out of sequence, when selected to 2 hi
> indicates part time, when selected part time indicates full time, when
> selected full time acts like neutral, when selected 4 lo indicates part time
> how's that for weird
>
> Jeff thanks for your help tried the back up thing no joy, don't give up on
> me if you got anymore hints drop them on me
> --
>
> Matt
> 0|||||||0
> Tact is the ability to describe others as they see themselves
> "Jeff Strickland" <spamcatcher@yahoo.net> wrote in message
> news:TISdnRUPo8jL4GPcRVn-jA@ez2.net...
> > You are asking 2 questions here. It is OK to ask two questions, but I
> wanted
> > you to be sure you understood that.
> >
> >
> > 1st, it sounds like you are using 4WD on dry pavement, and the drive train
> > is binding up. This causes a hop or a wobble in the steering wheel as the
> > tires try to slip on the ground to release the EXCESSIVE stress you are
> > putting on it. If you continue to use 4WD on hard pavement, you WILL
> destroy
> > the tcase. It isn't a matter of IF, it's a matter of WHEN.
> >
> > 2nd, if the tcase and/or front axles is bound up, then it can remain in
> 4WD
> > after you have selected 2WD. The way to get out of this bind is to select
> > 2WD (2HI), then go in Reverse for about 25 ft. If the front end is still
> > bound up, repeat Reverse. You might get it to drop out of the bind if you
> > could find a place on dirt or gravel.
> >
> >
> > WHAT IS HAPPENING is that the transfer case can not accomodate the speed
> > differences in the front and rear axles. Because of this fundamental
> truth,
> > then there will be stress built up in the tcase. If the tires are on dirt
> or
> > gravel, the stress is released because the tires are slipping. Because you
> > are driving on the street, the stress can not be released easily and you
> > feel the buckling and lurching that results from the tires slipping on the
> > pavement. The differentials (large bulb-shaped parts in the middle of the
> > axles) accomodate speed differences from left to right. These differences
>
> > come from the outside tire travelling further than the inside tire during
> a
> > turn. The front and rear tires also travel different arcs in a turn,
> > therefore they also turn at different speeds. So, in 4WD, all four tires
> can
> > turn at different speeds, this is especially true in the hard turns that
> you
> > described in your symptoms. Not only do the left and right side tires go
> > different speeds, but the front and rear tires go at different speeds as
> > well. The tcase is not designed to accomodate the differences from front
> to
> > rear, as the differentials are designed to do for right to left.
> >
> > The front axle is connected to the driveshaft via a slip joint kind of
> > arrangement inside the axle itself. When you select 4WD, either 4HI or
> 4LO,
> > there is vacuum that is supplied via the transfer case to the front axle.
> > This vacuum activates a fork that moves the slip joint over splines on the
> > axle shaft. You are describing a symptom where the slip joint is not
> > releasing. A reason it is not is that the axle shafts are bound up, and
> you
> > unbind them by going backwards. You do not need speed, in fact speed is
> > probably problematic for inducing the slip joint to release. You could
> > experiment with gently turning the steering wheel from side to side. This
> > will cause the axle halves to go at slightly different speeds, and the
> slip
> > joint can slip more easily.
> >
> > Your '88 YJ has the same limitations, by the way.
> >
> >
> >
> >
> >
> >
> > "JEEPR" <YJJPS@nospam@yahoo.ca> wrote in message
> > news:uPfLd.1748$Ck1.334219@news20.bellglobal.com.. .
> > > The old ladies 98 grand cherokee is hopping when making sharp rh or lh
> > > turns. She had not use the 4wd for a while until the recent snows.
> > > Could it be possible that the 4wd is stuck on even though 2 hi selected.
> > > Has anyone else experienced this
> > > What would be the cure.
> > > Mike Romain I would value your input on this one.
> > > Thanks to all for assistance.
> > >
> > > Have a 88 yj myself and love the tinkering. Just want to make sure I'm
> on
> > > the right trac.
> > >
> > > --
> > >
> > > Matt
> > > 0|||||||0
> > > Tact is the ability to describe others as they see themselves
> > >
> > >
> >
> >
02-01-2005, 08:58 AM
#28
Guest
Posts: n/a
Re: hopping during turn
Ahh, an easy fix at least!
That either means you have the linkage out of adjustment which is a
quick fix down under or you have a busted motor or tranny mount which
has shifted things so the linkage just thinks it is out of adjustment
which also is a relatively easy fix.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
JEEPR wrote:
>
> It now appears that the shifter is out of sequence, when selected to 2 hi
> indicates part time, when selected part time indicates full time, when
> selected full time acts like neutral, when selected 4 lo indicates part time
> how's that for weird
>
> Jeff thanks for your help tried the back up thing no joy, don't give up on
> me if you got anymore hints drop them on me
> --
>
> Matt
> 0|||||||0
> Tact is the ability to describe others as they see themselves
> "Jeff Strickland" <spamcatcher@yahoo.net> wrote in message
> news:TISdnRUPo8jL4GPcRVn-jA@ez2.net...
> > You are asking 2 questions here. It is OK to ask two questions, but I
> wanted
> > you to be sure you understood that.
> >
> >
> > 1st, it sounds like you are using 4WD on dry pavement, and the drive train
> > is binding up. This causes a hop or a wobble in the steering wheel as the
> > tires try to slip on the ground to release the EXCESSIVE stress you are
> > putting on it. If you continue to use 4WD on hard pavement, you WILL
> destroy
> > the tcase. It isn't a matter of IF, it's a matter of WHEN.
> >
> > 2nd, if the tcase and/or front axles is bound up, then it can remain in
> 4WD
> > after you have selected 2WD. The way to get out of this bind is to select
> > 2WD (2HI), then go in Reverse for about 25 ft. If the front end is still
> > bound up, repeat Reverse. You might get it to drop out of the bind if you
> > could find a place on dirt or gravel.
> >
> >
> > WHAT IS HAPPENING is that the transfer case can not accomodate the speed
> > differences in the front and rear axles. Because of this fundamental
> truth,
> > then there will be stress built up in the tcase. If the tires are on dirt
> or
> > gravel, the stress is released because the tires are slipping. Because you
> > are driving on the street, the stress can not be released easily and you
> > feel the buckling and lurching that results from the tires slipping on the
> > pavement. The differentials (large bulb-shaped parts in the middle of the
> > axles) accomodate speed differences from left to right. These differences
>
> > come from the outside tire travelling further than the inside tire during
> a
> > turn. The front and rear tires also travel different arcs in a turn,
> > therefore they also turn at different speeds. So, in 4WD, all four tires
> can
> > turn at different speeds, this is especially true in the hard turns that
> you
> > described in your symptoms. Not only do the left and right side tires go
> > different speeds, but the front and rear tires go at different speeds as
> > well. The tcase is not designed to accomodate the differences from front
> to
> > rear, as the differentials are designed to do for right to left.
> >
> > The front axle is connected to the driveshaft via a slip joint kind of
> > arrangement inside the axle itself. When you select 4WD, either 4HI or
> 4LO,
> > there is vacuum that is supplied via the transfer case to the front axle.
> > This vacuum activates a fork that moves the slip joint over splines on the
> > axle shaft. You are describing a symptom where the slip joint is not
> > releasing. A reason it is not is that the axle shafts are bound up, and
> you
> > unbind them by going backwards. You do not need speed, in fact speed is
> > probably problematic for inducing the slip joint to release. You could
> > experiment with gently turning the steering wheel from side to side. This
> > will cause the axle halves to go at slightly different speeds, and the
> slip
> > joint can slip more easily.
> >
> > Your '88 YJ has the same limitations, by the way.
> >
> >
> >
> >
> >
> >
> > "JEEPR" <YJJPS@nospam@yahoo.ca> wrote in message
> > news:uPfLd.1748$Ck1.334219@news20.bellglobal.com.. .
> > > The old ladies 98 grand cherokee is hopping when making sharp rh or lh
> > > turns. She had not use the 4wd for a while until the recent snows.
> > > Could it be possible that the 4wd is stuck on even though 2 hi selected.
> > > Has anyone else experienced this
> > > What would be the cure.
> > > Mike Romain I would value your input on this one.
> > > Thanks to all for assistance.
> > >
> > > Have a 88 yj myself and love the tinkering. Just want to make sure I'm
> on
> > > the right trac.
> > >
> > > --
> > >
> > > Matt
> > > 0|||||||0
> > > Tact is the ability to describe others as they see themselves
> > >
> > >
> >
> >
That either means you have the linkage out of adjustment which is a
quick fix down under or you have a busted motor or tranny mount which
has shifted things so the linkage just thinks it is out of adjustment
which also is a relatively easy fix.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
JEEPR wrote:
>
> It now appears that the shifter is out of sequence, when selected to 2 hi
> indicates part time, when selected part time indicates full time, when
> selected full time acts like neutral, when selected 4 lo indicates part time
> how's that for weird
>
> Jeff thanks for your help tried the back up thing no joy, don't give up on
> me if you got anymore hints drop them on me
> --
>
> Matt
> 0|||||||0
> Tact is the ability to describe others as they see themselves
> "Jeff Strickland" <spamcatcher@yahoo.net> wrote in message
> news:TISdnRUPo8jL4GPcRVn-jA@ez2.net...
> > You are asking 2 questions here. It is OK to ask two questions, but I
> wanted
> > you to be sure you understood that.
> >
> >
> > 1st, it sounds like you are using 4WD on dry pavement, and the drive train
> > is binding up. This causes a hop or a wobble in the steering wheel as the
> > tires try to slip on the ground to release the EXCESSIVE stress you are
> > putting on it. If you continue to use 4WD on hard pavement, you WILL
> destroy
> > the tcase. It isn't a matter of IF, it's a matter of WHEN.
> >
> > 2nd, if the tcase and/or front axles is bound up, then it can remain in
> 4WD
> > after you have selected 2WD. The way to get out of this bind is to select
> > 2WD (2HI), then go in Reverse for about 25 ft. If the front end is still
> > bound up, repeat Reverse. You might get it to drop out of the bind if you
> > could find a place on dirt or gravel.
> >
> >
> > WHAT IS HAPPENING is that the transfer case can not accomodate the speed
> > differences in the front and rear axles. Because of this fundamental
> truth,
> > then there will be stress built up in the tcase. If the tires are on dirt
> or
> > gravel, the stress is released because the tires are slipping. Because you
> > are driving on the street, the stress can not be released easily and you
> > feel the buckling and lurching that results from the tires slipping on the
> > pavement. The differentials (large bulb-shaped parts in the middle of the
> > axles) accomodate speed differences from left to right. These differences
>
> > come from the outside tire travelling further than the inside tire during
> a
> > turn. The front and rear tires also travel different arcs in a turn,
> > therefore they also turn at different speeds. So, in 4WD, all four tires
> can
> > turn at different speeds, this is especially true in the hard turns that
> you
> > described in your symptoms. Not only do the left and right side tires go
> > different speeds, but the front and rear tires go at different speeds as
> > well. The tcase is not designed to accomodate the differences from front
> to
> > rear, as the differentials are designed to do for right to left.
> >
> > The front axle is connected to the driveshaft via a slip joint kind of
> > arrangement inside the axle itself. When you select 4WD, either 4HI or
> 4LO,
> > there is vacuum that is supplied via the transfer case to the front axle.
> > This vacuum activates a fork that moves the slip joint over splines on the
> > axle shaft. You are describing a symptom where the slip joint is not
> > releasing. A reason it is not is that the axle shafts are bound up, and
> you
> > unbind them by going backwards. You do not need speed, in fact speed is
> > probably problematic for inducing the slip joint to release. You could
> > experiment with gently turning the steering wheel from side to side. This
> > will cause the axle halves to go at slightly different speeds, and the
> slip
> > joint can slip more easily.
> >
> > Your '88 YJ has the same limitations, by the way.
> >
> >
> >
> >
> >
> >
> > "JEEPR" <YJJPS@nospam@yahoo.ca> wrote in message
> > news:uPfLd.1748$Ck1.334219@news20.bellglobal.com.. .
> > > The old ladies 98 grand cherokee is hopping when making sharp rh or lh
> > > turns. She had not use the 4wd for a while until the recent snows.
> > > Could it be possible that the 4wd is stuck on even though 2 hi selected.
> > > Has anyone else experienced this
> > > What would be the cure.
> > > Mike Romain I would value your input on this one.
> > > Thanks to all for assistance.
> > >
> > > Have a 88 yj myself and love the tinkering. Just want to make sure I'm
> on
> > > the right trac.
> > >
> > > --
> > >
> > > Matt
> > > 0|||||||0
> > > Tact is the ability to describe others as they see themselves
> > >
> > >
> >
> >
02-01-2005, 12:17 PM
#29
Guest
Posts: n/a
Re: hopping during turn
Well, that's easy to fix.
The select lever goes through the floor and connects to a shaft. As you push
and pull the lever, it causes the shaft to slide in and out, selecting the
available options in the tcase. There is a bolt that attaches (clamps) the
lever to the shaft, the bolt is loose. The bolt can come loose, then bind on
the shaft in the incorrect position. Move the selector until N is selected,
not indicated but actually selected. Then losen the bolt so it does not hold
the lever to the shaft, and move the lever to the N position, then retighten
the bolt. Test and adjust as necessary.
The bolt can be seen from underneath the vehicle, well, it can be seen on a
Cherokee and a TJ, I am not certain about the Grand.
"JEEPR" <YJJPS@nospam@yahoo.ca> wrote in message
news:4CELd.4802$Ck1.853144@news20.bellglobal.com.. .
> It now appears that the shifter is out of sequence, when selected to 2 hi
> indicates part time, when selected part time indicates full time, when
> selected full time acts like neutral, when selected 4 lo indicates part
> time
> how's that for weird
>
> Jeff thanks for your help tried the back up thing no joy, don't give up on
> me if you got anymore hints drop them on me
> --
>
> Matt
> 0|||||||0
> Tact is the ability to describe others as they see themselves
> "Jeff Strickland" <spamcatcher@yahoo.net> wrote in message
> news:TISdnRUPo8jL4GPcRVn-jA@ez2.net...
>> You are asking 2 questions here. It is OK to ask two questions, but I
> wanted
>> you to be sure you understood that.
>>
>>
>> 1st, it sounds like you are using 4WD on dry pavement, and the drive
>> train
>> is binding up. This causes a hop or a wobble in the steering wheel as the
>> tires try to slip on the ground to release the EXCESSIVE stress you are
>> putting on it. If you continue to use 4WD on hard pavement, you WILL
> destroy
>> the tcase. It isn't a matter of IF, it's a matter of WHEN.
>>
>> 2nd, if the tcase and/or front axles is bound up, then it can remain in
> 4WD
>> after you have selected 2WD. The way to get out of this bind is to select
>> 2WD (2HI), then go in Reverse for about 25 ft. If the front end is still
>> bound up, repeat Reverse. You might get it to drop out of the bind if you
>> could find a place on dirt or gravel.
>>
>>
>> WHAT IS HAPPENING is that the transfer case can not accomodate the speed
>> differences in the front and rear axles. Because of this fundamental
> truth,
>> then there will be stress built up in the tcase. If the tires are on dirt
> or
>> gravel, the stress is released because the tires are slipping. Because
>> you
>> are driving on the street, the stress can not be released easily and you
>> feel the buckling and lurching that results from the tires slipping on
>> the
>> pavement. The differentials (large bulb-shaped parts in the middle of the
>> axles) accomodate speed differences from left to right. These differences
>
>> come from the outside tire travelling further than the inside tire during
> a
>> turn. The front and rear tires also travel different arcs in a turn,
>> therefore they also turn at different speeds. So, in 4WD, all four tires
> can
>> turn at different speeds, this is especially true in the hard turns that
> you
>> described in your symptoms. Not only do the left and right side tires go
>> different speeds, but the front and rear tires go at different speeds as
>> well. The tcase is not designed to accomodate the differences from front
> to
>> rear, as the differentials are designed to do for right to left.
>>
>> The front axle is connected to the driveshaft via a slip joint kind of
>> arrangement inside the axle itself. When you select 4WD, either 4HI or
> 4LO,
>> there is vacuum that is supplied via the transfer case to the front axle.
>> This vacuum activates a fork that moves the slip joint over splines on
>> the
>> axle shaft. You are describing a symptom where the slip joint is not
>> releasing. A reason it is not is that the axle shafts are bound up, and
> you
>> unbind them by going backwards. You do not need speed, in fact speed is
>> probably problematic for inducing the slip joint to release. You could
>> experiment with gently turning the steering wheel from side to side. This
>> will cause the axle halves to go at slightly different speeds, and the
> slip
>> joint can slip more easily.
>>
>> Your '88 YJ has the same limitations, by the way.
>>
>>
>>
>>
>>
>>
>> "JEEPR" <YJJPS@nospam@yahoo.ca> wrote in message
>> news:uPfLd.1748$Ck1.334219@news20.bellglobal.com.. .
>> > The old ladies 98 grand cherokee is hopping when making sharp rh or lh
>> > turns. She had not use the 4wd for a while until the recent snows.
>> > Could it be possible that the 4wd is stuck on even though 2 hi
>> > selected.
>> > Has anyone else experienced this
>> > What would be the cure.
>> > Mike Romain I would value your input on this one.
>> > Thanks to all for assistance.
>> >
>> > Have a 88 yj myself and love the tinkering. Just want to make sure I'm
> on
>> > the right trac.
>> >
>> > --
>> >
>> > Matt
>> > 0|||||||0
>> > Tact is the ability to describe others as they see themselves
>> >
>> >
>>
>>
>
>
The select lever goes through the floor and connects to a shaft. As you push
and pull the lever, it causes the shaft to slide in and out, selecting the
available options in the tcase. There is a bolt that attaches (clamps) the
lever to the shaft, the bolt is loose. The bolt can come loose, then bind on
the shaft in the incorrect position. Move the selector until N is selected,
not indicated but actually selected. Then losen the bolt so it does not hold
the lever to the shaft, and move the lever to the N position, then retighten
the bolt. Test and adjust as necessary.
The bolt can be seen from underneath the vehicle, well, it can be seen on a
Cherokee and a TJ, I am not certain about the Grand.
"JEEPR" <YJJPS@nospam@yahoo.ca> wrote in message
news:4CELd.4802$Ck1.853144@news20.bellglobal.com.. .
> It now appears that the shifter is out of sequence, when selected to 2 hi
> indicates part time, when selected part time indicates full time, when
> selected full time acts like neutral, when selected 4 lo indicates part
> time
> how's that for weird
>
> Jeff thanks for your help tried the back up thing no joy, don't give up on
> me if you got anymore hints drop them on me
> --
>
> Matt
> 0|||||||0
> Tact is the ability to describe others as they see themselves
> "Jeff Strickland" <spamcatcher@yahoo.net> wrote in message
> news:TISdnRUPo8jL4GPcRVn-jA@ez2.net...
>> You are asking 2 questions here. It is OK to ask two questions, but I
> wanted
>> you to be sure you understood that.
>>
>>
>> 1st, it sounds like you are using 4WD on dry pavement, and the drive
>> train
>> is binding up. This causes a hop or a wobble in the steering wheel as the
>> tires try to slip on the ground to release the EXCESSIVE stress you are
>> putting on it. If you continue to use 4WD on hard pavement, you WILL
> destroy
>> the tcase. It isn't a matter of IF, it's a matter of WHEN.
>>
>> 2nd, if the tcase and/or front axles is bound up, then it can remain in
> 4WD
>> after you have selected 2WD. The way to get out of this bind is to select
>> 2WD (2HI), then go in Reverse for about 25 ft. If the front end is still
>> bound up, repeat Reverse. You might get it to drop out of the bind if you
>> could find a place on dirt or gravel.
>>
>>
>> WHAT IS HAPPENING is that the transfer case can not accomodate the speed
>> differences in the front and rear axles. Because of this fundamental
> truth,
>> then there will be stress built up in the tcase. If the tires are on dirt
> or
>> gravel, the stress is released because the tires are slipping. Because
>> you
>> are driving on the street, the stress can not be released easily and you
>> feel the buckling and lurching that results from the tires slipping on
>> the
>> pavement. The differentials (large bulb-shaped parts in the middle of the
>> axles) accomodate speed differences from left to right. These differences
>
>> come from the outside tire travelling further than the inside tire during
> a
>> turn. The front and rear tires also travel different arcs in a turn,
>> therefore they also turn at different speeds. So, in 4WD, all four tires
> can
>> turn at different speeds, this is especially true in the hard turns that
> you
>> described in your symptoms. Not only do the left and right side tires go
>> different speeds, but the front and rear tires go at different speeds as
>> well. The tcase is not designed to accomodate the differences from front
> to
>> rear, as the differentials are designed to do for right to left.
>>
>> The front axle is connected to the driveshaft via a slip joint kind of
>> arrangement inside the axle itself. When you select 4WD, either 4HI or
> 4LO,
>> there is vacuum that is supplied via the transfer case to the front axle.
>> This vacuum activates a fork that moves the slip joint over splines on
>> the
>> axle shaft. You are describing a symptom where the slip joint is not
>> releasing. A reason it is not is that the axle shafts are bound up, and
> you
>> unbind them by going backwards. You do not need speed, in fact speed is
>> probably problematic for inducing the slip joint to release. You could
>> experiment with gently turning the steering wheel from side to side. This
>> will cause the axle halves to go at slightly different speeds, and the
> slip
>> joint can slip more easily.
>>
>> Your '88 YJ has the same limitations, by the way.
>>
>>
>>
>>
>>
>>
>> "JEEPR" <YJJPS@nospam@yahoo.ca> wrote in message
>> news:uPfLd.1748$Ck1.334219@news20.bellglobal.com.. .
>> > The old ladies 98 grand cherokee is hopping when making sharp rh or lh
>> > turns. She had not use the 4wd for a while until the recent snows.
>> > Could it be possible that the 4wd is stuck on even though 2 hi
>> > selected.
>> > Has anyone else experienced this
>> > What would be the cure.
>> > Mike Romain I would value your input on this one.
>> > Thanks to all for assistance.
>> >
>> > Have a 88 yj myself and love the tinkering. Just want to make sure I'm
> on
>> > the right trac.
>> >
>> > --
>> >
>> > Matt
>> > 0|||||||0
>> > Tact is the ability to describe others as they see themselves
>> >
>> >
>>
>>
>
>
02-01-2005, 12:17 PM
#30
Guest
Posts: n/a
Re: hopping during turn
Well, that's easy to fix.
The select lever goes through the floor and connects to a shaft. As you push
and pull the lever, it causes the shaft to slide in and out, selecting the
available options in the tcase. There is a bolt that attaches (clamps) the
lever to the shaft, the bolt is loose. The bolt can come loose, then bind on
the shaft in the incorrect position. Move the selector until N is selected,
not indicated but actually selected. Then losen the bolt so it does not hold
the lever to the shaft, and move the lever to the N position, then retighten
the bolt. Test and adjust as necessary.
The bolt can be seen from underneath the vehicle, well, it can be seen on a
Cherokee and a TJ, I am not certain about the Grand.
"JEEPR" <YJJPS@nospam@yahoo.ca> wrote in message
news:4CELd.4802$Ck1.853144@news20.bellglobal.com.. .
> It now appears that the shifter is out of sequence, when selected to 2 hi
> indicates part time, when selected part time indicates full time, when
> selected full time acts like neutral, when selected 4 lo indicates part
> time
> how's that for weird
>
> Jeff thanks for your help tried the back up thing no joy, don't give up on
> me if you got anymore hints drop them on me
> --
>
> Matt
> 0|||||||0
> Tact is the ability to describe others as they see themselves
> "Jeff Strickland" <spamcatcher@yahoo.net> wrote in message
> news:TISdnRUPo8jL4GPcRVn-jA@ez2.net...
>> You are asking 2 questions here. It is OK to ask two questions, but I
> wanted
>> you to be sure you understood that.
>>
>>
>> 1st, it sounds like you are using 4WD on dry pavement, and the drive
>> train
>> is binding up. This causes a hop or a wobble in the steering wheel as the
>> tires try to slip on the ground to release the EXCESSIVE stress you are
>> putting on it. If you continue to use 4WD on hard pavement, you WILL
> destroy
>> the tcase. It isn't a matter of IF, it's a matter of WHEN.
>>
>> 2nd, if the tcase and/or front axles is bound up, then it can remain in
> 4WD
>> after you have selected 2WD. The way to get out of this bind is to select
>> 2WD (2HI), then go in Reverse for about 25 ft. If the front end is still
>> bound up, repeat Reverse. You might get it to drop out of the bind if you
>> could find a place on dirt or gravel.
>>
>>
>> WHAT IS HAPPENING is that the transfer case can not accomodate the speed
>> differences in the front and rear axles. Because of this fundamental
> truth,
>> then there will be stress built up in the tcase. If the tires are on dirt
> or
>> gravel, the stress is released because the tires are slipping. Because
>> you
>> are driving on the street, the stress can not be released easily and you
>> feel the buckling and lurching that results from the tires slipping on
>> the
>> pavement. The differentials (large bulb-shaped parts in the middle of the
>> axles) accomodate speed differences from left to right. These differences
>
>> come from the outside tire travelling further than the inside tire during
> a
>> turn. The front and rear tires also travel different arcs in a turn,
>> therefore they also turn at different speeds. So, in 4WD, all four tires
> can
>> turn at different speeds, this is especially true in the hard turns that
> you
>> described in your symptoms. Not only do the left and right side tires go
>> different speeds, but the front and rear tires go at different speeds as
>> well. The tcase is not designed to accomodate the differences from front
> to
>> rear, as the differentials are designed to do for right to left.
>>
>> The front axle is connected to the driveshaft via a slip joint kind of
>> arrangement inside the axle itself. When you select 4WD, either 4HI or
> 4LO,
>> there is vacuum that is supplied via the transfer case to the front axle.
>> This vacuum activates a fork that moves the slip joint over splines on
>> the
>> axle shaft. You are describing a symptom where the slip joint is not
>> releasing. A reason it is not is that the axle shafts are bound up, and
> you
>> unbind them by going backwards. You do not need speed, in fact speed is
>> probably problematic for inducing the slip joint to release. You could
>> experiment with gently turning the steering wheel from side to side. This
>> will cause the axle halves to go at slightly different speeds, and the
> slip
>> joint can slip more easily.
>>
>> Your '88 YJ has the same limitations, by the way.
>>
>>
>>
>>
>>
>>
>> "JEEPR" <YJJPS@nospam@yahoo.ca> wrote in message
>> news:uPfLd.1748$Ck1.334219@news20.bellglobal.com.. .
>> > The old ladies 98 grand cherokee is hopping when making sharp rh or lh
>> > turns. She had not use the 4wd for a while until the recent snows.
>> > Could it be possible that the 4wd is stuck on even though 2 hi
>> > selected.
>> > Has anyone else experienced this
>> > What would be the cure.
>> > Mike Romain I would value your input on this one.
>> > Thanks to all for assistance.
>> >
>> > Have a 88 yj myself and love the tinkering. Just want to make sure I'm
> on
>> > the right trac.
>> >
>> > --
>> >
>> > Matt
>> > 0|||||||0
>> > Tact is the ability to describe others as they see themselves
>> >
>> >
>>
>>
>
>
The select lever goes through the floor and connects to a shaft. As you push
and pull the lever, it causes the shaft to slide in and out, selecting the
available options in the tcase. There is a bolt that attaches (clamps) the
lever to the shaft, the bolt is loose. The bolt can come loose, then bind on
the shaft in the incorrect position. Move the selector until N is selected,
not indicated but actually selected. Then losen the bolt so it does not hold
the lever to the shaft, and move the lever to the N position, then retighten
the bolt. Test and adjust as necessary.
The bolt can be seen from underneath the vehicle, well, it can be seen on a
Cherokee and a TJ, I am not certain about the Grand.
"JEEPR" <YJJPS@nospam@yahoo.ca> wrote in message
news:4CELd.4802$Ck1.853144@news20.bellglobal.com.. .
> It now appears that the shifter is out of sequence, when selected to 2 hi
> indicates part time, when selected part time indicates full time, when
> selected full time acts like neutral, when selected 4 lo indicates part
> time
> how's that for weird
>
> Jeff thanks for your help tried the back up thing no joy, don't give up on
> me if you got anymore hints drop them on me
> --
>
> Matt
> 0|||||||0
> Tact is the ability to describe others as they see themselves
> "Jeff Strickland" <spamcatcher@yahoo.net> wrote in message
> news:TISdnRUPo8jL4GPcRVn-jA@ez2.net...
>> You are asking 2 questions here. It is OK to ask two questions, but I
> wanted
>> you to be sure you understood that.
>>
>>
>> 1st, it sounds like you are using 4WD on dry pavement, and the drive
>> train
>> is binding up. This causes a hop or a wobble in the steering wheel as the
>> tires try to slip on the ground to release the EXCESSIVE stress you are
>> putting on it. If you continue to use 4WD on hard pavement, you WILL
> destroy
>> the tcase. It isn't a matter of IF, it's a matter of WHEN.
>>
>> 2nd, if the tcase and/or front axles is bound up, then it can remain in
> 4WD
>> after you have selected 2WD. The way to get out of this bind is to select
>> 2WD (2HI), then go in Reverse for about 25 ft. If the front end is still
>> bound up, repeat Reverse. You might get it to drop out of the bind if you
>> could find a place on dirt or gravel.
>>
>>
>> WHAT IS HAPPENING is that the transfer case can not accomodate the speed
>> differences in the front and rear axles. Because of this fundamental
> truth,
>> then there will be stress built up in the tcase. If the tires are on dirt
> or
>> gravel, the stress is released because the tires are slipping. Because
>> you
>> are driving on the street, the stress can not be released easily and you
>> feel the buckling and lurching that results from the tires slipping on
>> the
>> pavement. The differentials (large bulb-shaped parts in the middle of the
>> axles) accomodate speed differences from left to right. These differences
>
>> come from the outside tire travelling further than the inside tire during
> a
>> turn. The front and rear tires also travel different arcs in a turn,
>> therefore they also turn at different speeds. So, in 4WD, all four tires
> can
>> turn at different speeds, this is especially true in the hard turns that
> you
>> described in your symptoms. Not only do the left and right side tires go
>> different speeds, but the front and rear tires go at different speeds as
>> well. The tcase is not designed to accomodate the differences from front
> to
>> rear, as the differentials are designed to do for right to left.
>>
>> The front axle is connected to the driveshaft via a slip joint kind of
>> arrangement inside the axle itself. When you select 4WD, either 4HI or
> 4LO,
>> there is vacuum that is supplied via the transfer case to the front axle.
>> This vacuum activates a fork that moves the slip joint over splines on
>> the
>> axle shaft. You are describing a symptom where the slip joint is not
>> releasing. A reason it is not is that the axle shafts are bound up, and
> you
>> unbind them by going backwards. You do not need speed, in fact speed is
>> probably problematic for inducing the slip joint to release. You could
>> experiment with gently turning the steering wheel from side to side. This
>> will cause the axle halves to go at slightly different speeds, and the
> slip
>> joint can slip more easily.
>>
>> Your '88 YJ has the same limitations, by the way.
>>
>>
>>
>>
>>
>>
>> "JEEPR" <YJJPS@nospam@yahoo.ca> wrote in message
>> news:uPfLd.1748$Ck1.334219@news20.bellglobal.com.. .
>> > The old ladies 98 grand cherokee is hopping when making sharp rh or lh
>> > turns. She had not use the 4wd for a while until the recent snows.
>> > Could it be possible that the 4wd is stuck on even though 2 hi
>> > selected.
>> > Has anyone else experienced this
>> > What would be the cure.
>> > Mike Romain I would value your input on this one.
>> > Thanks to all for assistance.
>> >
>> > Have a 88 yj myself and love the tinkering. Just want to make sure I'm
> on
>> > the right trac.
>> >
>> > --
>> >
>> > Matt
>> > 0|||||||0
>> > Tact is the ability to describe others as they see themselves
>> >
>> >
>>
>>
>
>