Hi all,
My girlfriend is driving a wj and when she starts the jeep, it idles really high and then drops back down and repeats the symptoms. ive done some research and think it is the IAC, but now that i have it diagnosed, how to repair it.
Or if anyone thinks it can be some other issue please let me know. Any help will be greatly appreciated.

 

idle air control on the throttle body, maybe tps sensor or vacuum leak, any cel's?

 

No cel's. The issue only occurs once in a while but is slowly becoming more often. It's almost like once it warms up it starts acting normal again.