wildphil
I Love My Ty's
Once my truck reaches operating temp. the idle starts to go up and down. It idles fine before the truck warms up. The truck is not missing or anything. In fact the engine is running great. I did notice the IAC steps are around 35. The info that I have found suggest a mechanical issue. I have replaced and reset the IAC sensor. What else could be the cause? The computer, or wiring issue?