SOURCE: Not accelerating when stepping on the gas
throttle position sensor would cause this. Is there a check engine light
SOURCE: 1999 4.0L Jeep Grand Cherokee shuts down after 20-30 minutes.
I'd suggest the ignition control module, however I'd have a certified mechanic check it out just in case...
SOURCE: 2001 Jeep Grand Cherokee code P1391
I would check to be sure that the timing chain hasn't jumped at all ..
SOURCE: hard starting jeep grand cherokee 2001 4.7 V8. new
who installed the CSM, sounds like it was installed incorrectly?
Also, are your battery connections tight?
SOURCE: 96 jeep grand cherokee starts but wont idle
CHECK FUEL REGULATOR ON FUEL INJECTOR RAIL,&ALSO FUEL PUMP, CHARLIE
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It is a 4.0, 4wd
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