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.
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!
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.
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.