Cleaned IAC idle air control should take a few minutes and they make a spray especially for sensors. Locate it on the throttle body and remove and clean. They get dirty and don't read properly back to the computer and will make idle and starting difficult. Some spray and q-tips is all you need.
89YJ 2.5L TBI, AX-5, NP231 SYE, Ford 8.8, Yukon Grizzly, Tom Woods Shaft, 33" BFG T/As, 4" lift, Warn VR10000s.
AF Jeep Club Tail #184