The truck will be running just fine and without warning it will not idle down when I take my foot off the accelerator until I come to a complete stop. It will keep doing the same thing until I shut the engine off and restart the truck. I replaced the throttle position sensor without any change. It seems to do it after the truck is warmed up. I have not noticed the problem when the truck is cold. I could keep replacing parts until I go broke according to the troubleshooting book. Help!
I took the throttle body off and cleaned it 2 weeks ago. The plate is not sticking. Do you have another solution? Before you answer, I have also considered replacing the EGR valve, the idle control sensor, and a few other parts. Please tell me you can give me something I haven't thought of.
January, 1, 2012 AT 4:59 AM
Any codes? 02 sensors come online at warm up, how many miles on this truck?
January, 1, 2012 AT 3:00 PM
156000 miles on the truck. No codes, no check engine light, just a high idle when I least expect it.
January, 1, 2012 AT 5:20 PM
What size motor? What trans?With or without a/c?
January, 1, 2012 AT 10:49 PM
6 cylinder 4.3, five speed, with a/c
January, 2, 2012 AT 1:56 AM
I would suspect a faulty idle air control valve. Although there are t.S.B's for this vehicle to have the pcm re-flashed. But I would try a new i.A.C. Valve first.