Hey guys, I have been doing a bit of research but cannot find anything specific. I am currently working in Qatar, so needless to say, it gets really hot here. I have a 2001 Jeep Cherokee 4.0 auto, and have been noticing on the last few drives that the engine will randomly stall when idling at a stop. I have always been able to immediately restart the engine, no hesitation whatsoever. The stall only happens when stopped and idling, and not while driving. I cannot for certain say whether it only happens when the transmission is in gear or neutral or park.

I also have noticed that while driving there is sometimes a miss, and sometimes that there is a miss I will see my oil pressure gauge drop but then slowly come back up.

Any ideas? Vapor lock? Fuel pump going out? IAC or TPS?

Thanks in advance!

 

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My daughter's jeep is doing the same thing. They say to replace the fuel filter, or to insulate your fuel lines to keep from getting too hot, but after doing both, her jeep keeps vapor locking which causes it to stall out. Anyone else with advice would be appreciated.

 

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I’d replace the idle position sensor first to see if that’s the issue. Those are pretty typical symptoms. You could also pull your throttle body and give it a good cleaning. Be careful with the gasket and don’t break the bolts off.


QUOTE=Black72GTS;3696286]Hey guys, I have been doing a bit of research but cannot find anything specific. I am currently working in Qatar, so needless to say, it gets really hot here. I have a 2001 Jeep Cherokee 4.0 auto, and have been noticing on the last few drives that the engine will randomly stall when idling at a stop. I have always been able to immediately restart the engine, no hesitation whatsoever. The stall only happens when stopped and idling, and not while driving. I cannot for certain say whether it only happens when the transmission is in gear or neutral or park.

I also have noticed that while driving there is sometimes a miss, and sometimes that there is a miss I will see my oil pressure gauge drop but then slowly come back up.

Any ideas? Vapor lock? Fuel pump going out? IAC or TPS?

Thanks in advance![/QUOTE]