Question about 2002 Jeep Grand Cherokee

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2000 jeep grand V8 low idle then dies

I have a 2000 jeep grand cherokee that wants to die when you let it idle and dies when put it in reverse. I am having to keep one foot on the gas when stopped. I just had the oil changed and then the check engine light came on a couple of days after, 2 days later it started with the idle problem. They said a sensor with the gas cap was causing the engine light to come on. Any ideas of what I can try, is it possible they knocked something loose during the oil change?

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  • netelectric1 Dec 22, 2008

    I have almost the same problem (intermittently won't idle) with a 2000 Cherokee 2.5L 4 cylinder. Replaced fuel pump assembly, cleaned throttle body, new plugs, new wires, new dist. cap, new rotor, new catalytic converter, new muffler - still have same problem.



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Check th ISC idle speed control it will cause what seams like a surg when idleing you have to keep foot on gas to even keep it running.rpm goes high then low . And it is not real expencive maybe 35 bucks and on the side ofthrotle body but when removeing watch how it goes and put it back the same there must be i touch of resistencein the spring in side.

Posted on Feb 21, 2013


Check to see if you got a pluged cat

Posted on Oct 25, 2008


I have replaced the gas cap, light was still on so I replaced the sensor, and cleaned the throttle body. Nothing has changed :(

Posted on Oct 23, 2008

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A faulty gas cap can cause the sensor to come on.
Clean out the throttle body with a cleaner and see if the idle improves.

Posted on Oct 23, 2008

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