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jeep-o-holic
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45 Posts
Discussion Starter · #1 ·
Just did a head gasket on a 230k mile 4.0L with an automatic trans in my sahara. It runs and idles fine in park and neutral, but the idle falls and stalls when pulling to a stop. It doesnt do it if left in neutral rather than drive when slowing to a stop. Im reading check and clean the throttle body, the IAC and if that doesnt fix the issue it may be computer related. Opinions? How to check everything?
 

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Internet Owner
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9,510 Posts
Sounds like a vacuum leak.
 
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