2002 Jeep Grand Cherokee Logo
Posted on Apr 25, 2011
Answered

My 2002 GC 4wd automatic trans 4.0 engine shuts down only when the outside air temp is above 80 degrees. When approaching a red light / stop sign, I let off the gas pedal and at times it will shut down rpms gradually go to zero. At cruise, 50 mph the engine feels like it shuts down and starts up again. very abrupt and sudden with no codes. Dealer can find nothing wrong. I replaced the Idle control valve, did not help much if at all. PCM? When it shuts down at low RPM, I can start it right up again, no problem.

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Anonymous

If a dealer can not fix it, we can't guess at the unknown

Now your involved with a dealer leave it there, until
they solve it. Somebody has to stay with it, to a successfull
conclusion.

You could ask around about repair shops that are good at
diagnostics & drivability issues

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