jeep idles high
#1
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Year: 1998
Model: Cherokee
Engine: 4.0L
jeep idles high
this usually happens wen i get back from like a half hour trip to or from work....i put it in park and it revs up to about 1500 and wont go back down until i restart the car.. when i start the car it originally idles at 1000 maybe 900 im wondering if this is a problem? has anyone else had this? suggestions please and thxs...
#2
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Year: 1996
Model: Cherokee
Engine: 4.0
this happened to me when i first started the jeep i cleaned iac valve and it seems to be fine now there is a post on here somewhere on how to clean it basicaly you pull it and clean it with throttlebody cleaner and a small nylon brush
#3
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Year: 1988
Model: Cherokee
Engine: 4.0
While it is doing it high idle thing check for vacume leaks, there may be some type of port that only opens after it is warmed to full operating temp. I have used starting fluid or an unlit propain bottle (small propain torch) around hoses and intake manifolds, the rpms will raise even higher if u get in the vicinity of a leak. Not sure this is the safest way and I take no responsibility if u catch your truck on fire, but it does work.
Roz
Roz
#4
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Year: 1987
Model: Cherokee
Engine: 4.0 liter RENIX I-6, DIY Cold Air Intake, 2.5 FM Exhaust, 3 Core Radiator
Pull the IAC out of the throttle body bore and scrub the crap out of it and the bore with a toothbrush and carb. cleaner. If that doesn't fix your problem then read out your TPs. I bet either the IAC is sticking or your TPS is trash.
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