HELP! 97 TJ Transmission Problem!
05-14-2007, 07:55 PM
#61
Guest
Posts: n/a
Re: HELP! 97 TJ Transmission Problem!
On May 14, 6:00 pm, c <c...@me.org> wrote:
> 97tjMike wrote:
> > ok so I changed the fluid and then it drove, but it wasn't perfect, so
> > i went to the shop and got a transmission flush (100% fluid exchange,
> > or so they said). Now it drives but its a little hard to accelerate
> > from a stop and sometimes it wont shift until 3000 RPM. I think my
> > next step is to bring it in. Suggestions?
>
> Those transmission flushes really don't exchange all the fluid, but most
> of the places that do them claim they do. There is always fluid in the
> torque convertor that doesn't get replaced, but obviously it is better
> than not doing it at all.
>
> Anyway, when you say hard to accelerate, what exactly do you mean? If
> you mean that the engine revs up then the transmission engages, then you
> probably have clutches that have been damaged, a piston seal with dirt
> preventing it from sealing, or a valve stuck in the valve body.
>
> It is very possible that a piece of dirt got stuck in one of the valve
> body bores and that there could be a valve sticking. It really doesn't
> take much dirt to stick a valve in a bore. This would explain a possible
> reason for the high shift point.
>
> If you are 100% SURE the transmission isn't slipping, then I would try
> driving it for a while and then doing one more flush. The second option
> would be to have a good transmission shop pull the valve body and take
> it apart and clean it. The valve body controls the transmission,
> including when it shifts, how much pressure is applied to the clutches,
> and a lot more. One stuck valve in there can wreak havoc on the whole
> transmission.
>
> Chris
Well I talked to a trusted guy at a shop and he mentioned the valve
and possiblly one other thing (some electrical sensor I think). He
said that the clutch may be receiving incorrect information from the
gas pedal as to how much pressure it needs to do its job. When I start
from a stop (sometimes) It'll kind've buck back at me and then finally
catch, and I'll (again only sometime) feel a rumble and it'll go,
feels like the clutch is sticking. Anyways he told me that I can bring
it down there and he'll throw it on his machine and drive it a bit to
figure out the problem w/o charging me, so that's my next step
tomorrow morning. Thanks for everyone's help.
> 97tjMike wrote:
> > ok so I changed the fluid and then it drove, but it wasn't perfect, so
> > i went to the shop and got a transmission flush (100% fluid exchange,
> > or so they said). Now it drives but its a little hard to accelerate
> > from a stop and sometimes it wont shift until 3000 RPM. I think my
> > next step is to bring it in. Suggestions?
>
> Those transmission flushes really don't exchange all the fluid, but most
> of the places that do them claim they do. There is always fluid in the
> torque convertor that doesn't get replaced, but obviously it is better
> than not doing it at all.
>
> Anyway, when you say hard to accelerate, what exactly do you mean? If
> you mean that the engine revs up then the transmission engages, then you
> probably have clutches that have been damaged, a piston seal with dirt
> preventing it from sealing, or a valve stuck in the valve body.
>
> It is very possible that a piece of dirt got stuck in one of the valve
> body bores and that there could be a valve sticking. It really doesn't
> take much dirt to stick a valve in a bore. This would explain a possible
> reason for the high shift point.
>
> If you are 100% SURE the transmission isn't slipping, then I would try
> driving it for a while and then doing one more flush. The second option
> would be to have a good transmission shop pull the valve body and take
> it apart and clean it. The valve body controls the transmission,
> including when it shifts, how much pressure is applied to the clutches,
> and a lot more. One stuck valve in there can wreak havoc on the whole
> transmission.
>
> Chris
Well I talked to a trusted guy at a shop and he mentioned the valve
and possiblly one other thing (some electrical sensor I think). He
said that the clutch may be receiving incorrect information from the
gas pedal as to how much pressure it needs to do its job. When I start
from a stop (sometimes) It'll kind've buck back at me and then finally
catch, and I'll (again only sometime) feel a rumble and it'll go,
feels like the clutch is sticking. Anyways he told me that I can bring
it down there and he'll throw it on his machine and drive it a bit to
figure out the problem w/o charging me, so that's my next step
tomorrow morning. Thanks for everyone's help.
05-15-2007, 10:26 AM
#62
Guest
Posts: n/a
Re: HELP! 97 TJ Transmission Problem!
Some also have a stooopid button vent under the torque converter.
He also should clean the connection on the TPS because it also controls
the shift points and can get dirty.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)
Earle Horton wrote:
> On the autos the transmission dipstick tube is the vent tube.
>
> Earle
>
> "97tjMike" <MichaelJunior@gmail.com> wrote in message
> news:1179142252.392795.88690@w5g2000hsg.googlegrou ps.com...
>> On May 14, 1:44 am, XS11E <xs11...@SPAMyahoo.com> wrote:
>>> 97tjMike <MichaelJun...@gmail.com> wrote:
>>>> Well I did end up dropping the pan, only to find muddy
>>>> transmission fluid.....apparently mud found its way in and I'm
>>>> really mad at myself for mud bogging. But anyways I'm gonna try
>>>> cleaning it out with brake parts cleaner, and flushing it a couple
>>>> of times. And of course a new filter. Hopefully that's all it
>>>> needs, but I can't imagine the pump enjoyed having mud run through
>>>> it.
>>> I hope it works but, if everything is OK mud shouldn't have been able
>>> to get in there, just how deep in the mud were you? <G>
>> Well I was under the impression that I was ok to go up to the air
>> intake. I didn't get quite that high, but apparently high enough to
>> get to the transmission vent tube?
>>
>
>
He also should clean the connection on the TPS because it also controls
the shift points and can get dirty.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)
Earle Horton wrote:
> On the autos the transmission dipstick tube is the vent tube.
>
> Earle
>
> "97tjMike" <MichaelJunior@gmail.com> wrote in message
> news:1179142252.392795.88690@w5g2000hsg.googlegrou ps.com...
>> On May 14, 1:44 am, XS11E <xs11...@SPAMyahoo.com> wrote:
>>> 97tjMike <MichaelJun...@gmail.com> wrote:
>>>> Well I did end up dropping the pan, only to find muddy
>>>> transmission fluid.....apparently mud found its way in and I'm
>>>> really mad at myself for mud bogging. But anyways I'm gonna try
>>>> cleaning it out with brake parts cleaner, and flushing it a couple
>>>> of times. And of course a new filter. Hopefully that's all it
>>>> needs, but I can't imagine the pump enjoyed having mud run through
>>>> it.
>>> I hope it works but, if everything is OK mud shouldn't have been able
>>> to get in there, just how deep in the mud were you? <G>
>> Well I was under the impression that I was ok to go up to the air
>> intake. I didn't get quite that high, but apparently high enough to
>> get to the transmission vent tube?
>>
>
>
05-15-2007, 10:26 AM
#63
Guest
Posts: n/a
Re: HELP! 97 TJ Transmission Problem!
Some also have a stooopid button vent under the torque converter.
He also should clean the connection on the TPS because it also controls
the shift points and can get dirty.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)
Earle Horton wrote:
> On the autos the transmission dipstick tube is the vent tube.
>
> Earle
>
> "97tjMike" <MichaelJunior@gmail.com> wrote in message
> news:1179142252.392795.88690@w5g2000hsg.googlegrou ps.com...
>> On May 14, 1:44 am, XS11E <xs11...@SPAMyahoo.com> wrote:
>>> 97tjMike <MichaelJun...@gmail.com> wrote:
>>>> Well I did end up dropping the pan, only to find muddy
>>>> transmission fluid.....apparently mud found its way in and I'm
>>>> really mad at myself for mud bogging. But anyways I'm gonna try
>>>> cleaning it out with brake parts cleaner, and flushing it a couple
>>>> of times. And of course a new filter. Hopefully that's all it
>>>> needs, but I can't imagine the pump enjoyed having mud run through
>>>> it.
>>> I hope it works but, if everything is OK mud shouldn't have been able
>>> to get in there, just how deep in the mud were you? <G>
>> Well I was under the impression that I was ok to go up to the air
>> intake. I didn't get quite that high, but apparently high enough to
>> get to the transmission vent tube?
>>
>
>
He also should clean the connection on the TPS because it also controls
the shift points and can get dirty.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)
Earle Horton wrote:
> On the autos the transmission dipstick tube is the vent tube.
>
> Earle
>
> "97tjMike" <MichaelJunior@gmail.com> wrote in message
> news:1179142252.392795.88690@w5g2000hsg.googlegrou ps.com...
>> On May 14, 1:44 am, XS11E <xs11...@SPAMyahoo.com> wrote:
>>> 97tjMike <MichaelJun...@gmail.com> wrote:
>>>> Well I did end up dropping the pan, only to find muddy
>>>> transmission fluid.....apparently mud found its way in and I'm
>>>> really mad at myself for mud bogging. But anyways I'm gonna try
>>>> cleaning it out with brake parts cleaner, and flushing it a couple
>>>> of times. And of course a new filter. Hopefully that's all it
>>>> needs, but I can't imagine the pump enjoyed having mud run through
>>>> it.
>>> I hope it works but, if everything is OK mud shouldn't have been able
>>> to get in there, just how deep in the mud were you? <G>
>> Well I was under the impression that I was ok to go up to the air
>> intake. I didn't get quite that high, but apparently high enough to
>> get to the transmission vent tube?
>>
>
>
05-15-2007, 10:26 AM
#64
Guest
Posts: n/a
Re: HELP! 97 TJ Transmission Problem!
Some also have a stooopid button vent under the torque converter.
He also should clean the connection on the TPS because it also controls
the shift points and can get dirty.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)
Earle Horton wrote:
> On the autos the transmission dipstick tube is the vent tube.
>
> Earle
>
> "97tjMike" <MichaelJunior@gmail.com> wrote in message
> news:1179142252.392795.88690@w5g2000hsg.googlegrou ps.com...
>> On May 14, 1:44 am, XS11E <xs11...@SPAMyahoo.com> wrote:
>>> 97tjMike <MichaelJun...@gmail.com> wrote:
>>>> Well I did end up dropping the pan, only to find muddy
>>>> transmission fluid.....apparently mud found its way in and I'm
>>>> really mad at myself for mud bogging. But anyways I'm gonna try
>>>> cleaning it out with brake parts cleaner, and flushing it a couple
>>>> of times. And of course a new filter. Hopefully that's all it
>>>> needs, but I can't imagine the pump enjoyed having mud run through
>>>> it.
>>> I hope it works but, if everything is OK mud shouldn't have been able
>>> to get in there, just how deep in the mud were you? <G>
>> Well I was under the impression that I was ok to go up to the air
>> intake. I didn't get quite that high, but apparently high enough to
>> get to the transmission vent tube?
>>
>
>
He also should clean the connection on the TPS because it also controls
the shift points and can get dirty.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)
Earle Horton wrote:
> On the autos the transmission dipstick tube is the vent tube.
>
> Earle
>
> "97tjMike" <MichaelJunior@gmail.com> wrote in message
> news:1179142252.392795.88690@w5g2000hsg.googlegrou ps.com...
>> On May 14, 1:44 am, XS11E <xs11...@SPAMyahoo.com> wrote:
>>> 97tjMike <MichaelJun...@gmail.com> wrote:
>>>> Well I did end up dropping the pan, only to find muddy
>>>> transmission fluid.....apparently mud found its way in and I'm
>>>> really mad at myself for mud bogging. But anyways I'm gonna try
>>>> cleaning it out with brake parts cleaner, and flushing it a couple
>>>> of times. And of course a new filter. Hopefully that's all it
>>>> needs, but I can't imagine the pump enjoyed having mud run through
>>>> it.
>>> I hope it works but, if everything is OK mud shouldn't have been able
>>> to get in there, just how deep in the mud were you? <G>
>> Well I was under the impression that I was ok to go up to the air
>> intake. I didn't get quite that high, but apparently high enough to
>> get to the transmission vent tube?
>>
>
>
05-15-2007, 10:26 AM
#65
Guest
Posts: n/a
Re: HELP! 97 TJ Transmission Problem!
Some also have a stooopid button vent under the torque converter.
He also should clean the connection on the TPS because it also controls
the shift points and can get dirty.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)
Earle Horton wrote:
> On the autos the transmission dipstick tube is the vent tube.
>
> Earle
>
> "97tjMike" <MichaelJunior@gmail.com> wrote in message
> news:1179142252.392795.88690@w5g2000hsg.googlegrou ps.com...
>> On May 14, 1:44 am, XS11E <xs11...@SPAMyahoo.com> wrote:
>>> 97tjMike <MichaelJun...@gmail.com> wrote:
>>>> Well I did end up dropping the pan, only to find muddy
>>>> transmission fluid.....apparently mud found its way in and I'm
>>>> really mad at myself for mud bogging. But anyways I'm gonna try
>>>> cleaning it out with brake parts cleaner, and flushing it a couple
>>>> of times. And of course a new filter. Hopefully that's all it
>>>> needs, but I can't imagine the pump enjoyed having mud run through
>>>> it.
>>> I hope it works but, if everything is OK mud shouldn't have been able
>>> to get in there, just how deep in the mud were you? <G>
>> Well I was under the impression that I was ok to go up to the air
>> intake. I didn't get quite that high, but apparently high enough to
>> get to the transmission vent tube?
>>
>
>
He also should clean the connection on the TPS because it also controls
the shift points and can get dirty.
Mike
86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00
88 Cherokee 235 BFG AT's
Canadian Off Road Trips Photos: Non members can still view!
Jan/06 http://www.imagestation.com/album/pi...?id=2115147590
(More Off Road album links at bottom of the view page)
Earle Horton wrote:
> On the autos the transmission dipstick tube is the vent tube.
>
> Earle
>
> "97tjMike" <MichaelJunior@gmail.com> wrote in message
> news:1179142252.392795.88690@w5g2000hsg.googlegrou ps.com...
>> On May 14, 1:44 am, XS11E <xs11...@SPAMyahoo.com> wrote:
>>> 97tjMike <MichaelJun...@gmail.com> wrote:
>>>> Well I did end up dropping the pan, only to find muddy
>>>> transmission fluid.....apparently mud found its way in and I'm
>>>> really mad at myself for mud bogging. But anyways I'm gonna try
>>>> cleaning it out with brake parts cleaner, and flushing it a couple
>>>> of times. And of course a new filter. Hopefully that's all it
>>>> needs, but I can't imagine the pump enjoyed having mud run through
>>>> it.
>>> I hope it works but, if everything is OK mud shouldn't have been able
>>> to get in there, just how deep in the mud were you? <G>
>> Well I was under the impression that I was ok to go up to the air
>> intake. I didn't get quite that high, but apparently high enough to
>> get to the transmission vent tube?
>>
>
>
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