12-24-2011, 03:45 PM
Join Date: Jan 2010
Location: Las Cruces, NM
Sounds like a vacuum leak. Check the intake....you can do this by carefully spraying carb cleaner along the port areas when engine is warm and at idle, if it changes, there is where the leak is.
Aslo double check the rubber boots at the intake where the vacuum lines are connected, all it takes is a fine crack...I found mine on the bottom of a boot, could not see it until I pulled it off and checked it carefully.
I found it a lot easier to work on the IAC and TPS by removing the throttle body and working on a bench.
Idle is set by the computer.
It could be a bad IAC or sensor.
Have you checked for codes?
2013 WRANGLER SPORT 2 DR., V-6 ,AUTO,HARD TOP
)1994 Jeep Wrangler 2.5L, Bestop top
/w steel half door and slider windows
5 speed, 2.5" lift, 31" tires,rack lights