1996 Jeep Grand Cherokee 4.0 Auto PCM Stall

PCM Issues

[kurtisgee]

Hi all, A big THANKS to you all for posting your videos on YouTube or your comments on the countless forums to help people out with their problems. I'm posting this to possibly help others out there that may need it, because I found that everyone had slightly different issues around the stalling problem. Mine was different also.I have a 1996 Jeep Cherokee that had a stalling issue. It's fixed now, but I'll let you briefly know what happened. My Jeep was fine when it was at a cold or cool temperature but would always stall when it got to a normal heated operational temperature and stopped at lights or backed up traffic at idle. It wouldn't start for at least another 30 minutes until it had cooled enough. I then realised it was always in D-drive when it stalled, so I tried flicking it to neutral every time I was stopped and it wouldn't stall until I got to my destination and tried to start it straight away. Again i would have to wait for it to cool and then it would start. After stalling I checked the diagnosis codes by turning the ignition to the 2nd position 6 times and waiting for the codes to flash. That told me to replace the coolant temperature sensor, the crankshaft positon sensor, take it to a mechanic for diagnosis and the completed diagnosis code 55.I disconnected the ground battery terminal from battery and started with the cheapest of options which was the coolant temperature sensor. After replacing the coolant temperature sensor and connecting the battery, I then checked the stalling issue by driving around for an hour and leaving it in drive and it stalled and wouldn't start for 30 minutes. I then decided on the crankshaft option so I disconnected the ground battery terminal, changed the crankshaft position sensor and tested it also by driving around for an hour and leaving it in drive and it didn't stall.Problem fixed. I then checked the diagnosis codes again and no codes came up, besides the code for less than 50 key starts since the battery was last disconnected and the completed diagnosis code 55.RegardsKurtis

[SigmazGFX]

There ya go.
Glad to hear.. I did the same to mine.

[ryanjinkins]

Loose pins inside the PCM. This video will explain.

[SigmazGFX]

There ya go.
Glad to hear.. I did the same to mine.