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View Poll Results: The PCM is for whaich engine?
4.0 65 82.28%
5.2 12 15.19%
5.9 2 2.53%
Voters: 79. You may not vote on this poll

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Unread 02-21-2012, 12:10 PM   #1
ZeeJay1997
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1997 ZJ 
 
Join Date: Dec 2008
Location: right now I'm in, Texas
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If you've replaced your PCM for stalling...

and you know the PCM solved your problem, what engine do you have? This is for the 96-98 ZJ.

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Unread 02-21-2012, 12:18 PM   #2
MeanGreenZJ
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I have seen this issue on the 96-97 4.0L (they use the same PCM). I have yet to see this issue on a 98 4.0 or a 96-98 V8.

The WJ's have many PCM issues as well, but that's not what you asked.
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Unread 02-21-2012, 12:37 PM   #3
ZeeJay1997
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Quote:
Originally Posted by MeanGreenZJ View Post
The WJ's have many PCM issues as well, but that's not what you asked.
Until I went and researched it, I was under the impression that this form/fit PCM stopped with the ZJ. Come to find out, it wasn't. Since this is the ZJ forum, I think it will be okay.
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Unread 02-21-2012, 01:08 PM   #4
Oldfrog
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This is my second one. I guess I'll have to budget for a new one every year or two now and keep a spare handy. Jeep should have done something about this issue long ago.
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Unread 02-21-2012, 11:33 PM   #5
rooster51
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1997 ZJ 
 
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Advance Auto PCM lasted 6 months, Kolak PCM still going strong.
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Unread 02-22-2012, 04:29 AM   #6
coralman
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Lol, the WJ voltage regulator died after I changed spark plugs. Thats all I did..change plugs.
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Unread 02-22-2012, 08:01 AM   #7
JS97ZJ
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It seems odd that so far the poll results show only the 4.0 is effected. ??
Like Meangreen stated, the PCM's are basically the same.

A few years back there was a recall for the PCM's in late model JGC. The potting compound used in the case was so dense that fluctuations in temperature was causing the circuit boards to actually crack. Jeep was forced to replace them.

Since there are just so many manufactured for each model series, what good does it do to make them un-repairable. Anyone interestested in keeping one of these, as a collectable, better stock up PCMs.
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Unread 02-22-2012, 10:13 AM   #8
gt88
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Gotta fix mine first before I vote, but the recent purchase has a reman module in it, and that module just had its first birthday.
Reeaally hoping the hose clamp trick brings her on line!

Meanwhile, the wife's daily is on the original, so that will be my first surgical foray.....

oh, and the kid's 96 just started to throw funny misfire codes.....

Yep, 3 gc's, 96, 96, and 97, all 4.0, lots of ntsb inputs. Got work to do for sure!
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Unread 02-23-2012, 05:55 AM   #9
Timbone1343
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I fixed mine with a Advanced Auto PCM about 7 months ago. Still going.
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Unread 02-27-2012, 12:26 PM   #10
gt88
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Update: My "new" 97 had a reman pcm installed 1 year ago. At that time, the 'technician' broke 5 of the 6 clips for the harness, and loose harness plugs apparently cause stalling issues... whoda thunk? The hose clamp fix worked like a charm, runs great, wife happy.
My 'old' 96 finally just refused to start, and when it would, idled like a flat cam. Threw a clamp on that one, and it runs great now- so much better, Im willing to actually tune it up and work on it again!!

So, Im adding 2 to the above count, and my kid's 96 will be getting a clamp job for some mystery misfire codes asap!
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Unread 03-02-2012, 02:44 AM   #11
ZeeJay1997
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bump for more votes
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Unread 03-02-2012, 05:08 PM   #12
coralman
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50 million post , 19 votes, go figure
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Unread 03-02-2012, 10:57 PM   #13
rcorn79135
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Replaced it on two different 4.0 vehicles.

My 1996 4.0 Laredo 4WD (230K miles) at 210K miles. Replaced with a junkyard unit and still working great.

My 1997 4.0 Limited 2WD (205K miles) just this week. Replaced with a Cardone remanufactured unit from Advance Auto. Two days later, it's still going strong. <EDIT> Update...just over 7 months and just under 3,000 miles later and had to get it replaced under warranty. Working again for now.

My 1997 4.0 Limited 4WD (240K miles) - still working great with the original. Go figure.
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Last edited by rcorn79135; 10-31-2012 at 08:38 AM.. Reason: Updated Status of One of My GCs
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Unread 03-02-2012, 11:32 PM   #14
ridejeep26
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I have the 97 4.0 and I was getting the common random stalling and jumping rpms, only code I could drag out of itk was the a random misfire. Replaced the ignition coil, random stalling and bucking still there, so I zip tied my pcm and the jeep now idles smooth and runs strong. Guess I will have to keep zip tying and tightening those suckers till that doesn't work anymore. (zj voodoo gods don't strike me down for saying) zip ties have restored my jeep to its proper self.
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Unread 03-04-2012, 07:41 AM   #15
JS97ZJ
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bumped again
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