Help requested. 91 XJ No power in Drive/3rd

Reply Subscribe

Thread Tools

Search this Thread

Jun 4, 2020 | 11:08 PM

Brett Myers

Thread Starter

Newbie

Joined: Jun 2020

Posts: 10

Likes: 0

Model: Cherokee (XJ)

Help requested. 91 XJ No power in Drive/3rd

Hey guys, Hope everyone is holding up in this crazy time. I have a 91XJ that is pretty modified from the PO. Just today i have little power in Drive or 3rd. Reverse/ Low are fine. Very similar situation to this thread.
https://www.cherokeeforum.com/f2/no-power-drive-130218/
I do not seem have a TCU connected. Rather the yellow/ blue/yellow wires are spliced (pic attached). All yellow go together and all blue/yellow as well. Then they are tied into the black unit which i am not sure what to call that has a jumper conductor between the two. I messed around and made sure everything had a solid connection and swapped in a new fuse/ fuse harness to no avail. Anyone have any insight? It was running fine last time i started it, all i did in between was swap in some new speakers and did not mess with that harness at all. I appreciate any info you might have.

Here is a picture of what i believe was the TCU but it is not connected to anything, just wires spliced.
https://www.dropbox.com/s/u1j61si5v5..._0599.jpg?dl=0

Brett.

Jun 5, 2020 | 07:28 AM

cruiser54

::CF Moderator::

Joined: Aug 2011

Posts: 43,971

Likes: 1,579

From: Prescott, Az

Year: 1990

Model: Cherokee (XJ)

Engine: 4.0

No TCU.
It drove fine before?????

Jun 15, 2020 | 08:54 PM

may pop

Seasoned Member

Joined: Nov 2011

Posts: 399

Likes: 28

From: Northern Illinois

Sounds like you lost the 1-2 solinoid in the trans so it is starting out in second gear. Figure out what came undone while you were messing under the dash.