Question about 2000 Jeep Cherokee

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Drives fine...then shuts off

My jeep will start fine...then all of a sudden the rpm just drops and it basically shuts off.  I go to start it again and it turns over but won't start. Usually after about 5 minutes it starts again and then is fine for about another day.  It almost seems to be when I'm decelerating...or going down hill or a decline, not necessarily hitting the break...I've took it in to a firestone shop to get it fixed and they couldn't find anything wrong after doing all sorts of diagnostic tests.  Such a pain, don't know if it's a wiring issue or what...please help!

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  • kmcms5 Jul 21, 2008

    I have a 1999 Jeep Grand Cherokee Laredo, 112,000 miles and the engine just totally cuts out while driving along. Sometimes it restarts right away, sometimes I have to wait a few minutes. We had the injectors cleaned thinking maybe that was the problem, but it wasn't. Our mechanic thought it was the relay, so he changed it and it is still cutting out. The car was put onto a computer, but there aren't any codes showing. We're stumped.

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Jack up the Jeep and take a good look at the wiring harness that goes to the crank position sensor. the crank sensor is located between the engine and trans. It's accessible from the pass. side on the bellhousing. Check the wiring going to it and you may find the wiring frayed. If the crank sensor grounds out on the oil pan or something it'll shut the car off for no apparant reason. I've seen this problem on these alot.

Posted on Jul 16, 2008

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1999 jeep grand Cherokee shuts off unexpectedly


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My car cranks up fine, gets good power and drives great until I come to a stop. When I come to a stop or let off the gas abruptly, the rpm drops and the car shuts off. When I go to crank it back up, it...


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