tranny problem ?

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May 9, 2009 | 05:34 PM

troy0873

Thread Starter

Junior Member

Joined: Apr 2009

Posts: 42

Likes: 0

From: Canada

Year: 1993

Model: Cherokee

Engine: 4.0 H.O.

tranny problem ?

i just bought a 1990 cherokee with the 4.0 liter and when driving home i'd take off in drive and it felt like i was in high gear,i was forced to shift it manual.Is this a huge problem or just a sensor or something?

Thanks in advance for any help.

May 9, 2009 | 05:57 PM

JeepingDan

CF Veteran

Joined: Apr 2009

Posts: 18,786

Likes: 14

From: CT.

Year: 88

Model: Comanche (MJ)

Engine: 4.0 HO

sounds like somethings stuck. has it been sitting for awhile? or is that why they sold it?

May 10, 2009 | 11:33 PM

troy0873

Thread Starter

Junior Member

Joined: Apr 2009

Posts: 42

Likes: 0

From: Canada

Year: 1993

Model: Cherokee

Engine: 4.0 H.O.

well he never told me it was like that,but it has been sitting for awhile no places to start to look????

May 11, 2009 | 03:50 AM

BlueXJ

Renix Super Guru

Joined: Mar 2008

Posts: 24,653

Likes: 19

From: In yourz postez fissin jurr spelinzs

Year: 1990XJ/1989MJ

Model: Comanche

Engine: 4.0L Renix

Good news, the tranny is fine but sitting has corroded the TPS on the throttle body. Replace the TPS and adjust it and the tranny will be fine. If you look in this article it will explain how to make the adjustments.
http://wagoneers.com/XJ/tech/TPS-adjustment.html

Last edited by BlueXJ; May 11, 2009 at 04:21 AM. Reason: spellinz erers

May 11, 2009 | 09:02 AM

BuckB91XJ

CF Veteran

Joined: Nov 2008

Posts: 6,989

Likes: 4

From: Oak Harbor, WA.

Year: 1987

Model: Cherokee

Engine: 4.0 liter RENIX I-6, DIY Cold Air Intake, 2.5 FM Exhaust, 3 Core Radiator

If your AW4 will shift through the gears fine manually but, not automatically, I would go with what Blue told you first. As it is an easy fix if that is what is causing it. If not, then your problem is that the TCU is not turning on. Check fuses and then check for 12vdc on pin C15 of your TCU connector.