2000 WJ 4.0 hard start
#1
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Join Date: Oct 2013
Location: Carlsbad NM
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Year: 2000
Model: Grand Cherokee
Engine: 4.0
2000 WJ 4.0 hard start
Im having a issue with hard start, hot cold doesnt matter. Does start like it should every once in a while when its been driven. It has had all the tsb and recall repairs done. It was bought new by, well , my wifes Granny lol. She started having a start issue after about 2 yrs. I bought it about 4 months ago and prob getting worse. checked fuel pressure and leak test no problem there. was thinking leaking injector. No MIL codes even hooked my scanner up nothing! Any help would be AWESOME!!!!
#3
Have you replaced the starter. Had the same issue for about the same length of time and I just decided one day I was sick of it and changed out the starter with a brand new not rebuilt one. Problem has never occurred again. You can also swap out the idle air control valve first and see if that's your culprit, you description kinda sounds like that maybe and issue too. Reason I saw that too is I had changed mine out about a year before I had my starting issue. The ground wire also can be the issue. There is a wire on top of the starter that can wiggle itself loose make sure its hooked on good not talking about the positive wire from the battery.
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