- Dec 29, 2011
- 226
First time calling for help on this site, any advice is welcome.Coming to a stop light today and once stopped the idle surges back and forth from normal to 1k and dropped below 600 a couple of times but never stalled. When I came to the next light the idle was hanging around 950-1K. The idle stayed this high until I got home and turned it off. It gave no CEL and had no reduction in power. After the truck sat a while I tried to investigate. I started it and the idle settled around 1k as if this was normal. I removed the resonator at the TB and noticed the butterfly was open alot more than it should be, I could push it in about a 1/2 inch. I didnt see anything obvious so I just disconnected the battery for a while and put it all back togther. After about 20mins I started the truck and all is fine. My question is could this be a throttle body or a component of it going bad?
Recent maintenance :
Mileage is approx 102k
Brakes and brake fluid flush about 500 miles ago
Oil change, Air filter and throttle body cleaning, fuel filter replaced 800 miles ago ( yes the battery was disconnected )
Plugs were changed at about 80k
Intake manifold was cleaned with Seafoam (aerosol w/30" straw) approx 800 miles ago
MAP sensor in intake recently cleaned

Recent maintenance :
Mileage is approx 102k
Brakes and brake fluid flush about 500 miles ago
Oil change, Air filter and throttle body cleaning, fuel filter replaced 800 miles ago ( yes the battery was disconnected )
Plugs were changed at about 80k
Intake manifold was cleaned with Seafoam (aerosol w/30" straw) approx 800 miles ago
MAP sensor in intake recently cleaned
