Well I am now faced with the infamous Grand Cherokee sporadic stalling and restarting problem. Yet I am amazed by the years worth of stuff online about people with Jeeps having this exact same problem, yet there does not seem to be any surefire fix for this problem, where even the Jeep dealers can not fix this problem right away. Yet mainly I’m trying to get some answers to see what I can do myself while trying to keep from tossing tons of money senselessly at this problem. I would like to explore a few do-it-yourself options before taking it to my mechanic, because he may charge me a fortune to try to find the problem by trial-and-error . . . which worries me, since I read of so many people saying that the Jeep dealer could not readily find out this same old stalling and starting problem that seems to have plagued Jeep Grand Cherokees for many years.
I have a 1996 Jeep Grand Cherokee Limited, with a 4.0 6 cylinder engine, with 2 wheel drive, and with about 165,000 miles.
Upon reading about this problem in so many online forums, I was wondering what was the “one thing” that “you did” to your Jeep Grand Cherokee that fixed this problem? When I say fixed, I mean what was the “one thing” that you did that totally stopped your stalling and restarting problems for at least 6 or more months?
To keep things easy and simple, it is not necessary to read beyond this paragraph, unless you want to know some of the background of my particular situation and problems. Mainly I am only looking for the “one thing” that "you did" that totally stopped your stalling and restarting problems for at least 6 or more months, so I can start experimenting with those solutions to see if I can quickly fix my stalling and restarting problems.
If you want to know more background on my problem, here it is:
I have the classic case of my Jeep is unpredictable, in regards to the stalling and starting problems. The engine tends to bucks at least 3 or 4 times upon driving it for 5 to 6 days. The engine now dies within 15 to 25 minutes of driving it . . . sometimes it will start right back up or at times, it will take 1 to 5 minutes to restart it. Yet if I dare park it (after driving 15 to 25 minutes), it is a 50/50 chance that it will restart. If it doesn’t restart, it will take about 2 to 3 hours before it will start. Yet it amazes me that I can try starting the engine to the point of draining the battery down and the engine will not turn over, yet if I leave it sit for 2 to 3 hours, it quickly starts right up with no hesitation.
Though the CEL has not been on in over 4 months, my mechanic said it only had one code, and the code was a PO138 Oxygen Sensor / Bank 1 Sensor, which he said would not be related to the stalling and starting problem. He said that he thinks the problem is electrical or it could be the fuel pump.
I had heard that adjusting some screws by the PCM (behind the coolant reservoir) fixes this problem.
I had heard that the CEL reader should pick up a code “11" (no crank shaft signal position signal detected), then once you replace the crank shaft sensor, this fixes this problem (I do not have this code reading).
I have also heard that by replacing various sensors, this stopped this problem.
I had heard that replacing the PCM fixes this problem. I wonder can I get a PCM from a salvage yard? I sure don’t want to buy a brand new PCM and it turns out that is not the problem, because I have heard of several people buying brand new PCM (for $200+) from the Jeep dealer only to discover that did not fix their stalling and starting problem.
Yet all-in-all, it sounds like trying to fix this problem could be just about anything and that I just should be prepared to throw out lots of money trying all of these various options until the problem is fixed. Yet I'm just trying to avoid this, since I'm living on a very tight income and budget (due to our poor economy) and I can't afford to get another vehicle at this time.