2001 Chevrolet Silverado 2500HD "unstable idle" Questions

...throttle body build up carbon between the throttle bore and throttle plate causing some unstable idle problems. you can clean out the throttle body bore with some throttle body cleaner and a shop ...

unstable idle on my 1991 Toyota Cressida. Stalls Unstable idle on my 1991 Toyota Cressida. Stalls at times at stops. A mechanic has changed the fuel filter, EGR and EGR modulator. Thanks for your help

...idle unstable my mitsubishi pajero io 1.8 GDI idles normally (accelerated) when cold. As engine warms up idling becomes unstable ranging from 500 to 1000 rpm and the car sometimes shuts off. What is ...

...Idle very often unstable/jumping up and down. Since I've cleaned fuel injector and idle fuse in the black box in font of the battery, it's a bit better, but still unstable??? check for vacuum leak ...

...Idle speed Unstable Start in morning at -15 C, Idle speed 500 rpm and unstable,shake, black smoke,depress accelerator then ok. run fault codes and check for ambient temp sensor and/ or MAP/MAF sensor ...

...unstable idle, engine dies during idle, one new O2 sensor (has 4 O2 senors), still have unstable idle, noticed a vapor lock when gas cap removed early this morning...never noticed that before. ...

unstable engine at idle and high soeed unstable engine, missing on idle and at high speed do a compression test to make sure the cylinders are in balance. if the compression is good,change the plugs ...

unstable idle and the check engine light has just came on. Could this be a problem with the O2 censor? Here is a tip that I wrote about the check engine light. http://www.fixya.com/cars/r6017267-check

...unstable idle scanned codes and it popped code po143 o2 sensor, and p1133 manufacture control fuel air metering/// and when i changed spark plugs the other day there was alot of carbon build up on ...

rpm unstable My 1995 acura integra rpm is unstable (engine will rev up and down uncontrolably). Your Idle speed control or ISC needs to be replaced. Check for vacuum leaks.