Join Date: Oct 1999
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Re: TJ 2000 engine RPMs doesn,t return to idle
Have you checked the Idle Air Control Motor?
a. Pull it (it's loacated on the Throttle Body.).
b. Use Spray Carb cleaner to clean it and the hole in the TB it mates into.
2. Pull the Battery Negative cable.
3. Let the computer -re-train itself.
4. Use Propane, or water, or carb spray and look for a vacuum leak a round the intake manifold and throttle body.
I have replaced IAC and cleaned and inspected all that I can see.. and resetting computer make no differents.
Thank for the info
Doug in ottawa