5.2 engine troubles
Veteran
Joined: Nov 2010
Posts: 302
Likes: 0
From: Southwest Arkansas
Want to apologize first for thread-jacking this thread.
Glad to see this thread as I am having the same issue. I already replace TPS for a diff problem so it's time to clean the IAC. I did the plugs, wires, cap, and rotor while I had the keg off. When the engine is cold i.e. during cold start cycle I can rev it, let off and it idles fine at 750 or so. Once it warms up though rev it and let off RPM drop to 250 then recovers and idles fine. I'm wondering if I bumped the keg when putting it on and created a vacuum leak around an intake runner.
Glad to see this thread as I am having the same issue. I already replace TPS for a diff problem so it's time to clean the IAC. I did the plugs, wires, cap, and rotor while I had the keg off. When the engine is cold i.e. during cold start cycle I can rev it, let off and it idles fine at 750 or so. Once it warms up though rev it and let off RPM drop to 250 then recovers and idles fine. I'm wondering if I bumped the keg when putting it on and created a vacuum leak around an intake runner.
