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-   -   tranny shifting problem , changed tranny, still not shifting (http://www.jeepforum.com/forum/f19/tranny-shifting-problem-changed-tranny-still-not-shifting-1565860/)

sspncr 08-22-2013 07:28 PM

tranny shifting problem , changed tranny, still not shifting
 
I just purchased a 1989 Jeep Cherokee 4.0L Auto. Was told it was a bad tranny, wouldn't shift from 1st to 2nd, untill the RPMs are at about 4200. Then it won't go to 3rd untill it's up to 73 mph.
So I changed the tranny, but it does the same thing.

Anybody have an idea what might be the problem???????????:confused::confused:

uberxj92 08-22-2013 09:32 PM

Tcm. Located under passenger dash. Transmission Control Module.
Test it by unplugging it, then shift it manually. If it works that way then its the tcm.

Holder350 08-22-2013 09:39 PM

Also a good possibly that the tps sensor may be bad.

Sent from my phone

cruiser54 08-23-2013 06:34 AM

1 Attachment(s)
Here's a pic of the TCU.

Also, click on the link in my signature and do #1 and #10 for sure.


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