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Old 12-01-2012, 11:22 AM   #1
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2002 Jeep Wrangler Sahara Trans problems??

Hey everyone, sorry but im ignorant to all this electronic stuff. Im used to mechanical parts lol.

Here is the deal. when I am slowing down and after im stopped my jeep shakes like a motor mount is broke and my RPM's go way down. But as im am about to stop i feel the trans shift down one more time. Im not sure if it is shifting into 1st or what. When I manually put it into 1st and shift to second it does fine. Accelerating is fine just when im slowing down this happens. Also if i quickly shift it neutral it stops shaking and my rpm go back to normal. Im hoping this is not the first signs of a trans going out.

Its not my rotors either. Any help will be much appreciated.

2002 Jeep Wrangler Sahara
Auto Trans, 58k miles. 31 inch tires.

Thanks Scott

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Old 12-01-2012, 02:13 PM   #2
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When is the last time you properly checked your transmission's ATF level and condition Scott?

Your transmission is the 32RH which is considered one of the very best transmissions to have ever come out of Detroit. But it needs at least basic care to keep it running properly.

Start the engine, let it get fully warmed up so the transmission gets warmed up. Then shift the transmission through all the gears and then shift/leave it in Neutral. Leave the engine running & before getting out, securely set the parking brake.

Check the transmission level via its dipstick that is located at the very rear of the engine on the passenger-side, where it comes out from under the firewall. Make sure it's up to level and make sure it has a good healthy red color typical of ATF and doesn't look or smell burnt. Remember the transmission shifter must be in Neutral, the engine must be running, and the engine/transmission must be fully warmed up to test the ATF level.

If you need to add ATF, make sure to ONLY use ATF that says ATF+3 or ATF+4 on the front label. If it doesn't say ATF+3 or ATF+4 on the front label, it's not the right stuff.

Your next step(s) depend on what you discover with the level and condition check of the ATF.

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Old 12-01-2012, 02:35 PM   #3
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Does it ever do it in reverse? Sounds like the torque converter lock up solenoid
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Old 12-02-2012, 07:01 PM   #4
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Thanks Jerry, but I have done all the above pertaining to checking the trans fluid. That was the first thing I checked. Levels are all fine and fluid is the nice red color. It does not happen in reverse. From park to drive or reverse it shifts real hard. I thought I was normal. Before i bought the jeep 6 months ago my mechanic told me it all looked good.

I called him he said that the throttle valve could be out of adjustment. I bought a haynes manual but it said my year jeep had some sort of an automatic cable adjuster but i could not find it. The diagram did not match what i had under the hood. In the book plastic reset with some conduit on the cable. Mine does not have either, just a plain cable with no way of tightening or loosening the cable. The cable to me felt loose but I am ignorant to these new jeeps.

Thanks for the help guys.
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Old 12-02-2012, 07:51 PM   #5
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Throw out or return that Haynes manual which is wrong more often than it is right. There is no automatic TV cable adjustment, you must adjust the transmission's TV cable (aka the 'kickdown' cable) by moving the cable sleeve in or out where it is held by its holder on its throttle body mounting bracket.

The TV's cable is correctly adjusted when it has zero slack in it and not being pulled on by the throttle lever when you're not stepping on the accelerator pedal. The TV cable is adjusted so as soon as you step any on the gas pedal that it is pulled.

There is a white clip on the bracket that holds the cable in adjustment. Gently pulling the adjustment clip out a tad will release the cable so it can be adjusted.
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Old 12-03-2012, 03:10 PM   #6
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Thanks so much. Yea that Haynes manual was a POS. I saw that clip but was t sure what it was and didn't want to break anything trying. I am going to try that as soon as my day off gets here. The cable had a lot of slack in it so it must be the issue, hopefully. So once I loosen the clip I just move the cable it self to adjust it?

Any idea on the hard shifting when I first put it into gear. Ill take a video and post it if I can figure it out.
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Old 12-03-2012, 03:47 PM   #7
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Once the clip is released, the cable housing itself is moved in or out of the bracket to adjust the tension. It is easier done than described. Remember zero slack in the cable, but neither should the cable be pulling on the throttle lever when the engine is at idle.

My only real suggestion on the hard 1st gear shifting is to try flushing out the old ATF and refill it with fresh ATF+4. Don't use any other type of ATF, not even Mobil-1 ATF is the right stuff.
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Old 12-04-2012, 10:38 PM   #8
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It worked!!! Thanks guys. I adjusted the TV a couple of times. first two times when I put it into gear it died but then found the sweet spot. Runs perfect now. Is this a common problem with this cable? No a big deal but didnt know if there was an alternate fix.

Thanks again. Now onto bigger, better and more fun things like lift, rims, tires, armor etc...

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