1996 Chevrolet K1500 "high idle" Questions

High idle 92 silverado with tbi eng. idles high for longer than it should even after eng. has hit running temp. You could have a bad gasket under the TBI that is allowing uncontrolled air to enter the

high idle if it thinks it's real cold out. Also, a bad power steering pressure switch can cause a high idle. All of these can be looked at with a scanner! The problem you are describing, is due to the

...like two problems 1 engine can idle high with vaccum leaks or bad idle air control or maf sensor 2 if trans wont shift in to gear fluid first next would be to tcm or wire connection on trans good ...

...high idle test HC ppm 559. standard is 220. man at inspection said was missing at high idle,what can cause that?? First either replace or clean the idle air control valve.You can clean it with a ...

Idles high-vacuume hose? Idles high, poor gas mileage,runs rough when stopped check the gasket between the intake and the throttle body base. Thet tear and it makes a leak there. Lee

idle throttle valve sensor a week ago my truck was ideling high then stalling sprayed an throttle body and airtake and the truck worked just fine. Yesterday it now turns over and idles high then quits

...high idle? thanks phil look for the idle air bypass valve it sounds like it is stuck open leaving the engine idle at too high of an rpm, that would explian the hard braking because it cant build any ...

High idle and rough idle. I have a 1997 K1500. It has a rough and high idle. When in park or stopped it idles rough. But after u release the brake u can idle upto 25 mph or it shifts to 2nd gear. The ...

High idle on 97 silverado Have changed iac valve, tps, maf, map, intake air sensor cleaned battery, no vacuum leaks. Also new air filter pcv, and spark plugs. Still have high idle problem on 97 ...

...and plugs wires rotor and cap still not better you let the truck sit a week and start it it idles high n everything works fine except it idles high so im thinking the computercan anyone help check ...