97 Jeep Grand Cherokee drivetrain noise and vibration.
10-27-2005, 08:36 AM
#1
Guest
Posts: n/a
97 Jeep Grand Cherokee drivetrain noise and vibration.
I seems as though this subject has been beat to death, but in all of my
searching I can't find any problem that exactly describes mine. I have
a 1997 Jeep Grand Cherokee Laredo. It has a 249 transfer
case-quadratrac, 4.0L engine, and no modifications. I am experiencing a
vibration/rub under light load over 30 mph, it goes away if I "punch"
it, or release the accelerator. As I go down the road I seems to be
coming from directly under my feet on the drivers side. The noise can
be described as rub-rub-rub-rub in a monotonous rhythm.
I went underneath and checked the u-joints and shafts, along with the
transfer case. The only play I found was in the front output from the
transfer case. The shaft can move radially slightly and a little more
axially. I am not sure if this is normal, because the rear shaft is
nice and tight. I unfortunately did not have a chance to do this in
neutral, so my attempts may have been wasted. The u joints seemed to be
good, but it was hard to tell at the double-joint going to the front
axle. I am inclined to rule out a T-Case bearing only because the
noise/vibration happens under certain conditions. I am stumped right
now and any help would be appreciated.
Adam
searching I can't find any problem that exactly describes mine. I have
a 1997 Jeep Grand Cherokee Laredo. It has a 249 transfer
case-quadratrac, 4.0L engine, and no modifications. I am experiencing a
vibration/rub under light load over 30 mph, it goes away if I "punch"
it, or release the accelerator. As I go down the road I seems to be
coming from directly under my feet on the drivers side. The noise can
be described as rub-rub-rub-rub in a monotonous rhythm.
I went underneath and checked the u-joints and shafts, along with the
transfer case. The only play I found was in the front output from the
transfer case. The shaft can move radially slightly and a little more
axially. I am not sure if this is normal, because the rear shaft is
nice and tight. I unfortunately did not have a chance to do this in
neutral, so my attempts may have been wasted. The u joints seemed to be
good, but it was hard to tell at the double-joint going to the front
axle. I am inclined to rule out a T-Case bearing only because the
noise/vibration happens under certain conditions. I am stumped right
now and any help would be appreciated.
Adam
10-27-2005, 04:21 PM
#2
Guest
Posts: n/a
Re: 97 Jeep Grand Cherokee drivetrain noise and vibration.
I think you found it in your universal joints, look again for the
telltale rust stained cap seals.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/
seodfac@yahoo.com wrote:
>
> I seems as though this subject has been beat to death, but in all of my
> searching I can't find any problem that exactly describes mine. I have
> a 1997 Jeep Grand Cherokee Laredo. It has a 249 transfer
> case-quadratrac, 4.0L engine, and no modifications. I am experiencing a
> vibration/rub under light load over 30 mph, it goes away if I "punch"
> it, or release the accelerator. As I go down the road I seems to be
> coming from directly under my feet on the drivers side. The noise can
> be described as rub-rub-rub-rub in a monotonous rhythm.
>
> I went underneath and checked the u-joints and shafts, along with the
> transfer case. The only play I found was in the front output from the
> transfer case. The shaft can move radially slightly and a little more
> axially. I am not sure if this is normal, because the rear shaft is
> nice and tight. I unfortunately did not have a chance to do this in
> neutral, so my attempts may have been wasted. The u joints seemed to be
> good, but it was hard to tell at the double-joint going to the front
> axle. I am inclined to rule out a T-Case bearing only because the
> noise/vibration happens under certain conditions. I am stumped right
> now and any help would be appreciated.
>
> Adam
telltale rust stained cap seals.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/
seodfac@yahoo.com wrote:
>
> I seems as though this subject has been beat to death, but in all of my
> searching I can't find any problem that exactly describes mine. I have
> a 1997 Jeep Grand Cherokee Laredo. It has a 249 transfer
> case-quadratrac, 4.0L engine, and no modifications. I am experiencing a
> vibration/rub under light load over 30 mph, it goes away if I "punch"
> it, or release the accelerator. As I go down the road I seems to be
> coming from directly under my feet on the drivers side. The noise can
> be described as rub-rub-rub-rub in a monotonous rhythm.
>
> I went underneath and checked the u-joints and shafts, along with the
> transfer case. The only play I found was in the front output from the
> transfer case. The shaft can move radially slightly and a little more
> axially. I am not sure if this is normal, because the rear shaft is
> nice and tight. I unfortunately did not have a chance to do this in
> neutral, so my attempts may have been wasted. The u joints seemed to be
> good, but it was hard to tell at the double-joint going to the front
> axle. I am inclined to rule out a T-Case bearing only because the
> noise/vibration happens under certain conditions. I am stumped right
> now and any help would be appreciated.
>
> Adam
10-27-2005, 04:21 PM
#3
Guest
Posts: n/a
Re: 97 Jeep Grand Cherokee drivetrain noise and vibration.
I think you found it in your universal joints, look again for the
telltale rust stained cap seals.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/
seodfac@yahoo.com wrote:
>
> I seems as though this subject has been beat to death, but in all of my
> searching I can't find any problem that exactly describes mine. I have
> a 1997 Jeep Grand Cherokee Laredo. It has a 249 transfer
> case-quadratrac, 4.0L engine, and no modifications. I am experiencing a
> vibration/rub under light load over 30 mph, it goes away if I "punch"
> it, or release the accelerator. As I go down the road I seems to be
> coming from directly under my feet on the drivers side. The noise can
> be described as rub-rub-rub-rub in a monotonous rhythm.
>
> I went underneath and checked the u-joints and shafts, along with the
> transfer case. The only play I found was in the front output from the
> transfer case. The shaft can move radially slightly and a little more
> axially. I am not sure if this is normal, because the rear shaft is
> nice and tight. I unfortunately did not have a chance to do this in
> neutral, so my attempts may have been wasted. The u joints seemed to be
> good, but it was hard to tell at the double-joint going to the front
> axle. I am inclined to rule out a T-Case bearing only because the
> noise/vibration happens under certain conditions. I am stumped right
> now and any help would be appreciated.
>
> Adam
telltale rust stained cap seals.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/
seodfac@yahoo.com wrote:
>
> I seems as though this subject has been beat to death, but in all of my
> searching I can't find any problem that exactly describes mine. I have
> a 1997 Jeep Grand Cherokee Laredo. It has a 249 transfer
> case-quadratrac, 4.0L engine, and no modifications. I am experiencing a
> vibration/rub under light load over 30 mph, it goes away if I "punch"
> it, or release the accelerator. As I go down the road I seems to be
> coming from directly under my feet on the drivers side. The noise can
> be described as rub-rub-rub-rub in a monotonous rhythm.
>
> I went underneath and checked the u-joints and shafts, along with the
> transfer case. The only play I found was in the front output from the
> transfer case. The shaft can move radially slightly and a little more
> axially. I am not sure if this is normal, because the rear shaft is
> nice and tight. I unfortunately did not have a chance to do this in
> neutral, so my attempts may have been wasted. The u joints seemed to be
> good, but it was hard to tell at the double-joint going to the front
> axle. I am inclined to rule out a T-Case bearing only because the
> noise/vibration happens under certain conditions. I am stumped right
> now and any help would be appreciated.
>
> Adam
10-27-2005, 04:21 PM
#4
Guest
Posts: n/a
Re: 97 Jeep Grand Cherokee drivetrain noise and vibration.
I think you found it in your universal joints, look again for the
telltale rust stained cap seals.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/
seodfac@yahoo.com wrote:
>
> I seems as though this subject has been beat to death, but in all of my
> searching I can't find any problem that exactly describes mine. I have
> a 1997 Jeep Grand Cherokee Laredo. It has a 249 transfer
> case-quadratrac, 4.0L engine, and no modifications. I am experiencing a
> vibration/rub under light load over 30 mph, it goes away if I "punch"
> it, or release the accelerator. As I go down the road I seems to be
> coming from directly under my feet on the drivers side. The noise can
> be described as rub-rub-rub-rub in a monotonous rhythm.
>
> I went underneath and checked the u-joints and shafts, along with the
> transfer case. The only play I found was in the front output from the
> transfer case. The shaft can move radially slightly and a little more
> axially. I am not sure if this is normal, because the rear shaft is
> nice and tight. I unfortunately did not have a chance to do this in
> neutral, so my attempts may have been wasted. The u joints seemed to be
> good, but it was hard to tell at the double-joint going to the front
> axle. I am inclined to rule out a T-Case bearing only because the
> noise/vibration happens under certain conditions. I am stumped right
> now and any help would be appreciated.
>
> Adam
telltale rust stained cap seals.
God Bless America, Bill O|||||||O
mailto:-------------------- http://www.----------.com/
seodfac@yahoo.com wrote:
>
> I seems as though this subject has been beat to death, but in all of my
> searching I can't find any problem that exactly describes mine. I have
> a 1997 Jeep Grand Cherokee Laredo. It has a 249 transfer
> case-quadratrac, 4.0L engine, and no modifications. I am experiencing a
> vibration/rub under light load over 30 mph, it goes away if I "punch"
> it, or release the accelerator. As I go down the road I seems to be
> coming from directly under my feet on the drivers side. The noise can
> be described as rub-rub-rub-rub in a monotonous rhythm.
>
> I went underneath and checked the u-joints and shafts, along with the
> transfer case. The only play I found was in the front output from the
> transfer case. The shaft can move radially slightly and a little more
> axially. I am not sure if this is normal, because the rear shaft is
> nice and tight. I unfortunately did not have a chance to do this in
> neutral, so my attempts may have been wasted. The u joints seemed to be
> good, but it was hard to tell at the double-joint going to the front
> axle. I am inclined to rule out a T-Case bearing only because the
> noise/vibration happens under certain conditions. I am stumped right
> now and any help would be appreciated.
>
> Adam
10-27-2005, 10:14 PM
#5
Guest
Posts: n/a
Re: 97 Jeep Grand Cherokee drivetrain noise and vibration.
On 27 Oct 2005 05:36:40 -0700, seodfac@yahoo.com wrote:
>I seems as though this subject has been beat to death, but in all of my
>searching I can't find any problem that exactly describes mine. I have
>a 1997 Jeep Grand Cherokee Laredo. It has a 249 transfer
>case-quadratrac, 4.0L engine, and no modifications. I am experiencing a
>vibration/rub under light load over 30 mph, it goes away if I "punch"
>it, or release the accelerator. As I go down the road I seems to be
>coming from directly under my feet on the drivers side. The noise can
>be described as rub-rub-rub-rub in a monotonous rhythm.
>
>I went underneath and checked the u-joints and shafts, along with the
>transfer case. The only play I found was in the front output from the
>transfer case. The shaft can move radially slightly and a little more
>axially. I am not sure if this is normal, because the rear shaft is
>nice and tight. I unfortunately did not have a chance to do this in
>neutral, so my attempts may have been wasted. The u joints seemed to be
If that is a similar double-cardan joint to the one on my '77
Cherokee, there is a spring-loaded, ball-like "center yoke" between
the two crosses (inside the H-yoke) that can be bad and cause
vibration. If so, and I believe it is the same, it works off the rear
(I think) "cross", and maintains the joint at a constant velocity at
all operating angles.
Dan
>good, but it was hard to tell at the double-joint going to the front
>axle. I am inclined to rule out a T-Case bearing only because the
>noise/vibration happens under certain conditions. I am stumped right
>now and any help would be appreciated.
>
>Adam
>I seems as though this subject has been beat to death, but in all of my
>searching I can't find any problem that exactly describes mine. I have
>a 1997 Jeep Grand Cherokee Laredo. It has a 249 transfer
>case-quadratrac, 4.0L engine, and no modifications. I am experiencing a
>vibration/rub under light load over 30 mph, it goes away if I "punch"
>it, or release the accelerator. As I go down the road I seems to be
>coming from directly under my feet on the drivers side. The noise can
>be described as rub-rub-rub-rub in a monotonous rhythm.
>
>I went underneath and checked the u-joints and shafts, along with the
>transfer case. The only play I found was in the front output from the
>transfer case. The shaft can move radially slightly and a little more
>axially. I am not sure if this is normal, because the rear shaft is
>nice and tight. I unfortunately did not have a chance to do this in
>neutral, so my attempts may have been wasted. The u joints seemed to be
If that is a similar double-cardan joint to the one on my '77
Cherokee, there is a spring-loaded, ball-like "center yoke" between
the two crosses (inside the H-yoke) that can be bad and cause
vibration. If so, and I believe it is the same, it works off the rear
(I think) "cross", and maintains the joint at a constant velocity at
all operating angles.
Dan
>good, but it was hard to tell at the double-joint going to the front
>axle. I am inclined to rule out a T-Case bearing only because the
>noise/vibration happens under certain conditions. I am stumped right
>now and any help would be appreciated.
>
>Adam
10-27-2005, 10:14 PM
#6
Guest
Posts: n/a
Re: 97 Jeep Grand Cherokee drivetrain noise and vibration.
On 27 Oct 2005 05:36:40 -0700, seodfac@yahoo.com wrote:
>I seems as though this subject has been beat to death, but in all of my
>searching I can't find any problem that exactly describes mine. I have
>a 1997 Jeep Grand Cherokee Laredo. It has a 249 transfer
>case-quadratrac, 4.0L engine, and no modifications. I am experiencing a
>vibration/rub under light load over 30 mph, it goes away if I "punch"
>it, or release the accelerator. As I go down the road I seems to be
>coming from directly under my feet on the drivers side. The noise can
>be described as rub-rub-rub-rub in a monotonous rhythm.
>
>I went underneath and checked the u-joints and shafts, along with the
>transfer case. The only play I found was in the front output from the
>transfer case. The shaft can move radially slightly and a little more
>axially. I am not sure if this is normal, because the rear shaft is
>nice and tight. I unfortunately did not have a chance to do this in
>neutral, so my attempts may have been wasted. The u joints seemed to be
If that is a similar double-cardan joint to the one on my '77
Cherokee, there is a spring-loaded, ball-like "center yoke" between
the two crosses (inside the H-yoke) that can be bad and cause
vibration. If so, and I believe it is the same, it works off the rear
(I think) "cross", and maintains the joint at a constant velocity at
all operating angles.
Dan
>good, but it was hard to tell at the double-joint going to the front
>axle. I am inclined to rule out a T-Case bearing only because the
>noise/vibration happens under certain conditions. I am stumped right
>now and any help would be appreciated.
>
>Adam
>I seems as though this subject has been beat to death, but in all of my
>searching I can't find any problem that exactly describes mine. I have
>a 1997 Jeep Grand Cherokee Laredo. It has a 249 transfer
>case-quadratrac, 4.0L engine, and no modifications. I am experiencing a
>vibration/rub under light load over 30 mph, it goes away if I "punch"
>it, or release the accelerator. As I go down the road I seems to be
>coming from directly under my feet on the drivers side. The noise can
>be described as rub-rub-rub-rub in a monotonous rhythm.
>
>I went underneath and checked the u-joints and shafts, along with the
>transfer case. The only play I found was in the front output from the
>transfer case. The shaft can move radially slightly and a little more
>axially. I am not sure if this is normal, because the rear shaft is
>nice and tight. I unfortunately did not have a chance to do this in
>neutral, so my attempts may have been wasted. The u joints seemed to be
If that is a similar double-cardan joint to the one on my '77
Cherokee, there is a spring-loaded, ball-like "center yoke" between
the two crosses (inside the H-yoke) that can be bad and cause
vibration. If so, and I believe it is the same, it works off the rear
(I think) "cross", and maintains the joint at a constant velocity at
all operating angles.
Dan
>good, but it was hard to tell at the double-joint going to the front
>axle. I am inclined to rule out a T-Case bearing only because the
>noise/vibration happens under certain conditions. I am stumped right
>now and any help would be appreciated.
>
>Adam
10-27-2005, 10:14 PM
#7
Guest
Posts: n/a
Re: 97 Jeep Grand Cherokee drivetrain noise and vibration.
On 27 Oct 2005 05:36:40 -0700, seodfac@yahoo.com wrote:
>I seems as though this subject has been beat to death, but in all of my
>searching I can't find any problem that exactly describes mine. I have
>a 1997 Jeep Grand Cherokee Laredo. It has a 249 transfer
>case-quadratrac, 4.0L engine, and no modifications. I am experiencing a
>vibration/rub under light load over 30 mph, it goes away if I "punch"
>it, or release the accelerator. As I go down the road I seems to be
>coming from directly under my feet on the drivers side. The noise can
>be described as rub-rub-rub-rub in a monotonous rhythm.
>
>I went underneath and checked the u-joints and shafts, along with the
>transfer case. The only play I found was in the front output from the
>transfer case. The shaft can move radially slightly and a little more
>axially. I am not sure if this is normal, because the rear shaft is
>nice and tight. I unfortunately did not have a chance to do this in
>neutral, so my attempts may have been wasted. The u joints seemed to be
If that is a similar double-cardan joint to the one on my '77
Cherokee, there is a spring-loaded, ball-like "center yoke" between
the two crosses (inside the H-yoke) that can be bad and cause
vibration. If so, and I believe it is the same, it works off the rear
(I think) "cross", and maintains the joint at a constant velocity at
all operating angles.
Dan
>good, but it was hard to tell at the double-joint going to the front
>axle. I am inclined to rule out a T-Case bearing only because the
>noise/vibration happens under certain conditions. I am stumped right
>now and any help would be appreciated.
>
>Adam
>I seems as though this subject has been beat to death, but in all of my
>searching I can't find any problem that exactly describes mine. I have
>a 1997 Jeep Grand Cherokee Laredo. It has a 249 transfer
>case-quadratrac, 4.0L engine, and no modifications. I am experiencing a
>vibration/rub under light load over 30 mph, it goes away if I "punch"
>it, or release the accelerator. As I go down the road I seems to be
>coming from directly under my feet on the drivers side. The noise can
>be described as rub-rub-rub-rub in a monotonous rhythm.
>
>I went underneath and checked the u-joints and shafts, along with the
>transfer case. The only play I found was in the front output from the
>transfer case. The shaft can move radially slightly and a little more
>axially. I am not sure if this is normal, because the rear shaft is
>nice and tight. I unfortunately did not have a chance to do this in
>neutral, so my attempts may have been wasted. The u joints seemed to be
If that is a similar double-cardan joint to the one on my '77
Cherokee, there is a spring-loaded, ball-like "center yoke" between
the two crosses (inside the H-yoke) that can be bad and cause
vibration. If so, and I believe it is the same, it works off the rear
(I think) "cross", and maintains the joint at a constant velocity at
all operating angles.
Dan
>good, but it was hard to tell at the double-joint going to the front
>axle. I am inclined to rule out a T-Case bearing only because the
>noise/vibration happens under certain conditions. I am stumped right
>now and any help would be appreciated.
>
>Adam
11-25-2005, 08:14 PM
#8
Guest
Posts: n/a
Re: 97 Jeep Grand Cherokee drivetrain noise and vibration.
Hello Everyone,
I was wondering if you ever found out exactly what was making the
noise.I have a 97 JGC Limited. I've had this rubbing/grinding/knocking
type noise for a while now, but can't seem to find it. I thought it was
the ball joints so I redid the front end, Guess what still made the
noise. It seems to happen brakes are applied and the load of the car is
shiffted to the front, or going up hill, but still only happenes at
random times. PPPLLLEEEAAASSSEEE HELP.
Anthony
seodfac@yahoo.com wrote:
> I seems as though this subject has been beat to death, but in all of my
> searching I can't find any problem that exactly describes mine. I have
> a 1997 Jeep Grand Cherokee Laredo. It has a 249 transfer
> case-quadratrac, 4.0L engine, and no modifications. I am experiencing a
> vibration/rub under light load over 30 mph, it goes away if I "punch"
> it, or release the accelerator. As I go down the road I seems to be
> coming from directly under my feet on the drivers side. The noise can
> be described as rub-rub-rub-rub in a monotonous rhythm.
>
> I went underneath and checked the u-joints and shafts, along with the
> transfer case. The only play I found was in the front output from the
> transfer case. The shaft can move radially slightly and a little more
> axially. I am not sure if this is normal, because the rear shaft is
> nice and tight. I unfortunately did not have a chance to do this in
> neutral, so my attempts may have been wasted. The u joints seemed to be
> good, but it was hard to tell at the double-joint going to the front
> axle. I am inclined to rule out a T-Case bearing only because the
> noise/vibration happens under certain conditions. I am stumped right
> now and any help would be appreciated.
>
> Adam
I was wondering if you ever found out exactly what was making the
noise.I have a 97 JGC Limited. I've had this rubbing/grinding/knocking
type noise for a while now, but can't seem to find it. I thought it was
the ball joints so I redid the front end, Guess what still made the
noise. It seems to happen brakes are applied and the load of the car is
shiffted to the front, or going up hill, but still only happenes at
random times. PPPLLLEEEAAASSSEEE HELP.
Anthony
seodfac@yahoo.com wrote:
> I seems as though this subject has been beat to death, but in all of my
> searching I can't find any problem that exactly describes mine. I have
> a 1997 Jeep Grand Cherokee Laredo. It has a 249 transfer
> case-quadratrac, 4.0L engine, and no modifications. I am experiencing a
> vibration/rub under light load over 30 mph, it goes away if I "punch"
> it, or release the accelerator. As I go down the road I seems to be
> coming from directly under my feet on the drivers side. The noise can
> be described as rub-rub-rub-rub in a monotonous rhythm.
>
> I went underneath and checked the u-joints and shafts, along with the
> transfer case. The only play I found was in the front output from the
> transfer case. The shaft can move radially slightly and a little more
> axially. I am not sure if this is normal, because the rear shaft is
> nice and tight. I unfortunately did not have a chance to do this in
> neutral, so my attempts may have been wasted. The u joints seemed to be
> good, but it was hard to tell at the double-joint going to the front
> axle. I am inclined to rule out a T-Case bearing only because the
> noise/vibration happens under certain conditions. I am stumped right
> now and any help would be appreciated.
>
> Adam
11-25-2005, 08:14 PM
#9
Guest
Posts: n/a
Re: 97 Jeep Grand Cherokee drivetrain noise and vibration.
Hello Everyone,
I was wondering if you ever found out exactly what was making the
noise.I have a 97 JGC Limited. I've had this rubbing/grinding/knocking
type noise for a while now, but can't seem to find it. I thought it was
the ball joints so I redid the front end, Guess what still made the
noise. It seems to happen brakes are applied and the load of the car is
shiffted to the front, or going up hill, but still only happenes at
random times. PPPLLLEEEAAASSSEEE HELP.
Anthony
seodfac@yahoo.com wrote:
> I seems as though this subject has been beat to death, but in all of my
> searching I can't find any problem that exactly describes mine. I have
> a 1997 Jeep Grand Cherokee Laredo. It has a 249 transfer
> case-quadratrac, 4.0L engine, and no modifications. I am experiencing a
> vibration/rub under light load over 30 mph, it goes away if I "punch"
> it, or release the accelerator. As I go down the road I seems to be
> coming from directly under my feet on the drivers side. The noise can
> be described as rub-rub-rub-rub in a monotonous rhythm.
>
> I went underneath and checked the u-joints and shafts, along with the
> transfer case. The only play I found was in the front output from the
> transfer case. The shaft can move radially slightly and a little more
> axially. I am not sure if this is normal, because the rear shaft is
> nice and tight. I unfortunately did not have a chance to do this in
> neutral, so my attempts may have been wasted. The u joints seemed to be
> good, but it was hard to tell at the double-joint going to the front
> axle. I am inclined to rule out a T-Case bearing only because the
> noise/vibration happens under certain conditions. I am stumped right
> now and any help would be appreciated.
>
> Adam
I was wondering if you ever found out exactly what was making the
noise.I have a 97 JGC Limited. I've had this rubbing/grinding/knocking
type noise for a while now, but can't seem to find it. I thought it was
the ball joints so I redid the front end, Guess what still made the
noise. It seems to happen brakes are applied and the load of the car is
shiffted to the front, or going up hill, but still only happenes at
random times. PPPLLLEEEAAASSSEEE HELP.
Anthony
seodfac@yahoo.com wrote:
> I seems as though this subject has been beat to death, but in all of my
> searching I can't find any problem that exactly describes mine. I have
> a 1997 Jeep Grand Cherokee Laredo. It has a 249 transfer
> case-quadratrac, 4.0L engine, and no modifications. I am experiencing a
> vibration/rub under light load over 30 mph, it goes away if I "punch"
> it, or release the accelerator. As I go down the road I seems to be
> coming from directly under my feet on the drivers side. The noise can
> be described as rub-rub-rub-rub in a monotonous rhythm.
>
> I went underneath and checked the u-joints and shafts, along with the
> transfer case. The only play I found was in the front output from the
> transfer case. The shaft can move radially slightly and a little more
> axially. I am not sure if this is normal, because the rear shaft is
> nice and tight. I unfortunately did not have a chance to do this in
> neutral, so my attempts may have been wasted. The u joints seemed to be
> good, but it was hard to tell at the double-joint going to the front
> axle. I am inclined to rule out a T-Case bearing only because the
> noise/vibration happens under certain conditions. I am stumped right
> now and any help would be appreciated.
>
> Adam
11-25-2005, 08:14 PM
#10
Guest
Posts: n/a
Re: 97 Jeep Grand Cherokee drivetrain noise and vibration.
Hello Everyone,
I was wondering if you ever found out exactly what was making the
noise.I have a 97 JGC Limited. I've had this rubbing/grinding/knocking
type noise for a while now, but can't seem to find it. I thought it was
the ball joints so I redid the front end, Guess what still made the
noise. It seems to happen brakes are applied and the load of the car is
shiffted to the front, or going up hill, but still only happenes at
random times. PPPLLLEEEAAASSSEEE HELP.
Anthony
seodfac@yahoo.com wrote:
> I seems as though this subject has been beat to death, but in all of my
> searching I can't find any problem that exactly describes mine. I have
> a 1997 Jeep Grand Cherokee Laredo. It has a 249 transfer
> case-quadratrac, 4.0L engine, and no modifications. I am experiencing a
> vibration/rub under light load over 30 mph, it goes away if I "punch"
> it, or release the accelerator. As I go down the road I seems to be
> coming from directly under my feet on the drivers side. The noise can
> be described as rub-rub-rub-rub in a monotonous rhythm.
>
> I went underneath and checked the u-joints and shafts, along with the
> transfer case. The only play I found was in the front output from the
> transfer case. The shaft can move radially slightly and a little more
> axially. I am not sure if this is normal, because the rear shaft is
> nice and tight. I unfortunately did not have a chance to do this in
> neutral, so my attempts may have been wasted. The u joints seemed to be
> good, but it was hard to tell at the double-joint going to the front
> axle. I am inclined to rule out a T-Case bearing only because the
> noise/vibration happens under certain conditions. I am stumped right
> now and any help would be appreciated.
>
> Adam
I was wondering if you ever found out exactly what was making the
noise.I have a 97 JGC Limited. I've had this rubbing/grinding/knocking
type noise for a while now, but can't seem to find it. I thought it was
the ball joints so I redid the front end, Guess what still made the
noise. It seems to happen brakes are applied and the load of the car is
shiffted to the front, or going up hill, but still only happenes at
random times. PPPLLLEEEAAASSSEEE HELP.
Anthony
seodfac@yahoo.com wrote:
> I seems as though this subject has been beat to death, but in all of my
> searching I can't find any problem that exactly describes mine. I have
> a 1997 Jeep Grand Cherokee Laredo. It has a 249 transfer
> case-quadratrac, 4.0L engine, and no modifications. I am experiencing a
> vibration/rub under light load over 30 mph, it goes away if I "punch"
> it, or release the accelerator. As I go down the road I seems to be
> coming from directly under my feet on the drivers side. The noise can
> be described as rub-rub-rub-rub in a monotonous rhythm.
>
> I went underneath and checked the u-joints and shafts, along with the
> transfer case. The only play I found was in the front output from the
> transfer case. The shaft can move radially slightly and a little more
> axially. I am not sure if this is normal, because the rear shaft is
> nice and tight. I unfortunately did not have a chance to do this in
> neutral, so my attempts may have been wasted. The u joints seemed to be
> good, but it was hard to tell at the double-joint going to the front
> axle. I am inclined to rule out a T-Case bearing only because the
> noise/vibration happens under certain conditions. I am stumped right
> now and any help would be appreciated.
>
> Adam