High Idle.. Vacuum leak?
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Year: 99
Model: Cherokee
Engine: 4.0
High Idle.. Vacuum leak?
I have a 99 XJ with 100k on the clock and it normally idles at 600 rpm but recently when i get to work and put it in park it idles at 1200... yesterday i went to start it up and let it warm up and it started at 600 and i was outside the car talking to my coworker then it just revved itself up to 1200... would this a vacuum leak or what?
Any suggestions on what to check would be really helpful
Any suggestions on what to check would be really helpful
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