bottomline89 Posted December 28, 2010 Posted December 28, 2010 i have an 89 comanche, 4.0 |6, starts great and idles great at first.. after it warms up its wanting to idle at 2000.. it's not egr
Mongo Posted December 28, 2010 Posted December 28, 2010 sounds like a bad idle solenoid, it is next to the TPS on the throttle body. Pull it and clean it before you buy another one.
Pete M Posted December 31, 2010 Posted December 31, 2010 could be a vacuum leak too. one that only shows itself as the engine warms up.
bottomline89 Posted December 31, 2010 Author Posted December 31, 2010 thanks guys.. it was a leak in the intake manifol gasket. i swapt it out and the truck runs great now
89Tonto Posted January 2, 2011 Posted January 2, 2011 thanks guys.. it was a leak in the intake manifol gasket. i swapt it out and the truck runs great now Did you end up using carb cleaner/WD 40 to detect the vacuum leak?
bottomline89 Posted January 2, 2011 Author Posted January 2, 2011 no.. when the engine got hot enough you could see grease boiling on the gasket, it was very obvious
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