Results 1 to 7 of 7

Thread: 97 Cherokee Problems

  1. #1
    Trail Leader
    Join Date
    Mar 2010
    Location
    Karns City
    Posts
    440

    97 Cherokee Problems

    Ok gentleman, specifically the XJ crowd, my 97 Xj is havin some electric problems, mainly dealing with the AW4, it seems to be hunting gears and down shifting at random, I looked on diffrent sites, did thier recomended tests such as disconnect the tcu, readjust the tv cable and such, with the tcu disconnected it drove fine, shifted with the selector, didn't slip. Reconnected the Tcu and it started messing up again. Checked codes with the key and got a few codes: 12, 22, 45, &66. 12 is the battery which I replaced a few weeks ago, 22 is the coolant sensor, not sure why it came on? I did disconnect it last night for about two hours? Code 66 is saying that the TCU is not sending signal to PCM. Im pretty sure this is why its acting funny but I'm not sure how to go about it? Has anyone else had this problem? Any suggestions? I'm going to borrow a code scanner tonight also, not sure if it can give me more specific codes or not. Any help is appreciated
    97 Ram 2500 V10 5 Spd on 33 ST'S, Intake and Headers soon to be leveled with 4:10s
    99 TJ 4.0 32rh, 231 SYE 2wd low locked 30/35 with 4:10s on 35 KM2
    05 Rubi on 35 STTs-Broken

  2. #2
    Less posting, more wheeling!
    Join Date
    Apr 2007
    Location
    Pgh, south hills
    Posts
    2,022
    Sounds like a tcu to me. Believe me it's a common problem on the newer xj. Fortunately it's a simple fix, pull the box out from behind the glove box and replace it. If you look behind the globe box there's two boxes, the tcu is the one that's about 4"x6". Just unplug and replace. Tcu are usually cheap at the yards, or 25 at Davies. No one knows why they randomly mess up, they just do.

  3. #3
    PghOffRoad Forum Addict!
    Join Date
    Sep 2011
    Location
    Finleyville, PA
    Posts
    1,191
    Check your throttle position sensor. If its out of whack, then the TCU doesn't know when to shift. If you replace it, avoid the auto-zone or other cheapies, the Napa gets good reviews, as does OEM Chrysler.

    http://www.jeepforum.com/forum/f11/h...6/#post5747016

  4. #4
    Trail Leader
    Join Date
    Mar 2010
    Location
    Karns City
    Posts
    440
    Quote Originally Posted by Azzy View Post
    Check your throttle position sensor. If its out of whack, then the TCU doesn't know when to shift. If you replace it, avoid the auto-zone or other cheapies, the Napa gets good reviews, as does OEM Chrysler.

    http://www.jeepforum.com/forum/f11/h...6/#post5747016
    I actually replaced the tps and also ran a seperate ground after reading about some people having problems with the factory ground setup. I called just a few junk yards around my house and Davey's and no one has a 97, I called jeep and they said it had to be a 97 to work, does any one happen to know where theres a 97 being parted out?
    97 Ram 2500 V10 5 Spd on 33 ST'S, Intake and Headers soon to be leveled with 4:10s
    99 TJ 4.0 32rh, 231 SYE 2wd low locked 30/35 with 4:10s on 35 KM2
    05 Rubi on 35 STTs-Broken

  5. #5
    PghOffRoad Forum Addict!
    Join Date
    Sep 2011
    Location
    Finleyville, PA
    Posts
    1,191
    Replaced, but have you tested? One other place to check, Ive heard of issues coming from a shorted O2 sensor lead. Give those a look see and see if you arent shorting out on the block.

  6. #6
    Trail Leader
    Join Date
    Mar 2010
    Location
    Karns City
    Posts
    440
    Quote Originally Posted by sethman15210 View Post
    Sounds like a tcu to me. Believe me it's a common problem on the newer xj. Fortunately it's a simple fix, pull the box out from behind the glove box and replace it. If you look behind the globe box there's two boxes, the tcu is the one that's about 4"x6". Just unplug and replace. Tcu are usually cheap at the yards, or 25 at Davies. No one knows why they randomly mess up, they just do.
    Davies did not have one, its actually located on the driver side tranny hump, I did find one on ebay so It should be here by the time I'm home this week. Hopefully that fixes it, if not have you ever looked into the aftermarket transmission control units?
    97 Ram 2500 V10 5 Spd on 33 ST'S, Intake and Headers soon to be leveled with 4:10s
    99 TJ 4.0 32rh, 231 SYE 2wd low locked 30/35 with 4:10s on 35 KM2
    05 Rubi on 35 STTs-Broken

  7. #7
    Trail Leader
    Join Date
    Mar 2010
    Location
    Karns City
    Posts
    440
    Quote Originally Posted by Azzy View Post
    Replaced, but have you tested? One other place to check, Ive heard of issues coming from a shorted O2 sensor lead. Give those a look see and see if you arent shorting out on the block.
    I'll have to check the 02 sensors when I get home, also how do you check the tps?
    97 Ram 2500 V10 5 Spd on 33 ST'S, Intake and Headers soon to be leveled with 4:10s
    99 TJ 4.0 32rh, 231 SYE 2wd low locked 30/35 with 4:10s on 35 KM2
    05 Rubi on 35 STTs-Broken

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. TBI problems
    By PatF10 in forum General Off-Road Discussion
    Replies: 18
    Last Post: 06-27-2012, 04:26 PM
  2. Brake Problems
    By 97V10MN in forum General Off-Road Discussion
    Replies: 19
    Last Post: 01-01-2012, 10:12 PM
  3. TBI problems
    By jackb1 in forum General Off-Road Discussion
    Replies: 20
    Last Post: 04-01-2008, 11:25 PM
  4. Problems Problems Problems
    By VanderbiltJeep87 in forum General Off-Road Discussion
    Replies: 40
    Last Post: 03-04-2007, 06:02 PM
  5. anyone else having problems
    By trailblaze in forum General Off-Road Discussion
    Replies: 2
    Last Post: 02-19-2007, 07:25 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •