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Unread 08-22-2013, 07:28 PM   #1
sspncr
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1996 FSJ Cherokee 
 
Join Date: Mar 2009
Location: frederic, wi
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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???????????

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Unread 08-22-2013, 09:32 PM   #2
uberxj92
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1992 XJ Cherokee 
 
Join Date: Oct 2012
Location: umatilla, florida
Posts: 1,734
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.
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Unread 08-22-2013, 09:39 PM   #3
Holder350
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1995 XJ Cherokee 
 
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Location: Whitesburg, Tennessee
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Also a good possibly that the tps sensor may be bad.

Sent from my phone
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Unread 08-23-2013, 06:34 AM   #4
cruiser54
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Here's a pic of the TCU.

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

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