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Jake91 07-19-2013 06:00 PM

Just bought a TJ trans lost all gears
Ok bear with me I'm asking this for my father he isnt that great with computers.

He just picked up a 1997 TJ with 165k miles yesterday that has lost all gears. Now he hasn't had a chance to really look into the issue since its hasn't been towed home yet, but we are trying to get a jumpstart with ideas. The previous owner said he was just driving down the road and it started making noise then just started free revving. After that none of the 3 forward gears nor reverse do anything. My dad tried getting it into gear when he bought it but said it never even acted like it wanted to engage. Now we both have done some reading and I have found mention of a governor solenoid, and the shift cable just falling off does this sound like either or is it probably like we're thinking more serious.

Thanks ahead of time and I can relay any questions to him it just may take a day for response

Jake91 07-19-2013 06:09 PM

Ok just talked to him again hes actually got it home already. he said he got it to engage gear for a few seconds then it kicks out again it will do the same thing in all 2wd and 4hi/lo. He said he can here a whining sound like its pumping up fluid then it will grab gear and then lose it again shortly. It's full on fluid. its dark though but doesn't smell burnt

He was talking to the previous owner again today, and was told I would pop in and out of gear and downshift randomly while on the highway shortly before it went

Torque converter mabey?

Jake91 07-20-2013 09:10 PM

Anyone? My friend is suggesting the govenor pressure transducer, but from what I'm seeing that looks like 4spds only

Riptide63 07-20-2013 10:34 PM

First, are you checking the fluid with the engine running and the trans in NEUTRAL? You won't get a proper reading otherwise, as the fluid level will appear higher than it really is in Park.

Governor pressure only relates to speed. The faster you go, the higher the pressure. Upshifts and downshifts are basically handled by two opposing pressures... governor pressure which is directly related to vehicle speed, and throttle pressure which is directly related to your right foot. A governor issue could cause a no upshift concern, but it should still engage into forward & reverse.

I suspect, with no engagement into Forward AND Reverse, your problem is going to be related to the pump. It's either starving for fluid due to low fluid level or debris clogging up the filter, or it's very likely to have excessive wear within the pump, converter and/or bushings due to the fact that these transmixers don't lubricate themselves while in Park... part of that whole "checking the fluid in neutral" thing.

If there's still no engagement when the fluid level is correct, I'd start by pulling the pan to see what kind of debris is laying in the bottom. Post pics of what you find.

Jake91 07-21-2013 02:10 AM

Ok that was our next step thanks. As for checking the fluid he would of had it in nuetral as hes given me crap about doin that before myself. may be awhile he decided tonight to start putting floor pans in the YJ instead of messing with the TJ

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