Question about 1993 Jeep Grand Cherokee

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1993 grand cherokeeoverdrive button light stays on ,no overdrive

Overdrive button light stays on ,no overdrive

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The button itself may be bad. If the button is ok, then the problem could be in the transmission control module located behind the dash or worse, it could be an internal problem with the transmission itself. I would start small by checking or replacing the panel that includes the overdrive button. The easiest and cheapest place to get one is a salvage or junk yard. If this doesn't solve the problem then it is best to take your Jeep to certified mechanic. When it comes to the Grand Cherokee, they used around 5 or 6 different transmissions and several different transmission control modules. I wouldn't recommend the do-it-yourself guy try working on those systems. I Just recently replaced the transmission in my 93 Cherokee and finding a used one that was actually the right model was like looking for a needle in a haystack

Posted on Jul 15, 2009

  • ismail esau
    ismail esau Mar 02, 2014

    mine is a dawoo nubira

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1993 jeep grand cherokee is stuck in second gear, the overdrive button is not functioning, and getting the data control center says service 4wd switch


wow no engine size stated, the 5.2L run a special trans... so....
hopeless to help you much.
zj jeep with automatic.
it didnt lie, it told you to service it, so take it to a shop and let the work on this old dog..
stuck , now what does that mean.
the shift lever lever stuck, or its cable failing end to end.? or?
or shifts from 1 to 2 and hangs there.
or down shifts from 3 to 2 and and hangs there
DIY ? question is that it? you never said intentions.....
so we open the 93 ZJ book and what do we see.
ax-15 stick box, seems not.
the aw-4 auto , electronically shifted with TSM (scan it yet?)
and the 46RH auto. used on the 5.2L, has no TCM brain.
its a Hydramatic.
here are the OD words off the 46h page

Overdrive Control Switch
The overdrive control switch is located in the instrument
panel. In the On position, automatic shifts
into fourth gear overdrive will occur. In the Off position,
the switch overrides the powertrain control module
preventing a shift to overdrive fourth gear range.
The switch has an indicator light that illuminates
when overdrive is turned off. The switch also resets
when the ignition key is turned to the OFF position
so that the automatic overdrive feature is restored.
The use of fault codes is employed to help diagnose
the electronic components that operate the overdrive
unit and torque converter clutch.

Jul 16, 2016 | 1993 Jeep Grand Cherokee

1 Answer

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1 Answer

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this is a common issue on these cars and since you just had the trans replaced, whoever did the work needs to check the connections at the switch and at the trans-and these switched go bad, but the fact that it was just done to too much of a coincidence.

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1 Answer

1993 Jeep Grand Wagoneer shifts into overdrive OK when first driven. When shut off and restarted it doesn't always shift into overdrive, I can drive for miles and it still won't shift to overdrive. The...


This is a tough one! Lets start with the easiest first, When was the tranny fluid changed last? Have you checked the level? Maybe low on fluid? It almost sounds like maybe you have a contaminated fluid. I would start by checking the fluid level and the fluid condition. If the fluid is low then add some if it looks funny or smells burnt I would flush the system and change the fluid and go from there. I hope this helps you.

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1 Answer

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1 Answer

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hi first of all check the temp sensor on the auto box.also check transmission oil cooler that it is not blocked.when the computer for the auto box detects a problem it turns off the over drive.

Oct 14, 2008 | 2001 Jeep Grand Cherokee

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