What kind of idle does a Chevy silveraor have?

Misfire – Rough Idle: Hi, I Have 2009 Chevy Silveraor with About Hi, I have 2009 Chevy Silveraor with about 88,000 kms. Purchased the truck in December and have been having rough idle conditions and what feels to be misfiring (on morning start up, sitting at lights I can feel it, and during the daytime if it has sat for a couple hours).

Why is my Chevy Silverado running rough at idle?

Really, your Silverado will be running rougher at any RPM, but a misfire will be most pronounced at idle. Spark Plug Wires – While not every model and engine combination of vehicles today comes with spark plug wires (a lot are now coil on plug), if your Silverado happens to have them, they can go bad and cause a rough idle.

Why does my truck keep loping at idle?

I was reading old posts over at the place and some suggested that it was a bad fuel rail pressure regulator (FRPR) or it could also be a loose reluctor wheel on the crankshaft sensor. Anybody have any ideas on what it would for sure be?

Why is the idle speed of my car so high?

Step 2 – The idle air control motor (valve) is responsible for controlling the engine idle speed, if this part fails or becomes weak the engine idle speed could become erratic, additionally, this condition may or may not trigger the MIL (check engine, service engine soon light.)

What’s the idle speed on a Silverado truck?

So my idle was somewhere between 1000-1500 rpms. I unplugged the battery for a few hours and it dropped to around 800-900. After about a week of “relearning” it was back down to 500-600. Oops… Sorry for the pointless post. ^Didn’t realize you had already figured it out.

Why does my help truck have high idle?

Help truck has high idle!!! Cleaned the throttle body and went to put it back on and start it with out the intake attached to the throttle body. It idled funny so I shut it off. Connected the intake hose back in and it idles at 3000 rpms! It won’t go back down. I don’t know what to do. This is the first electrical engine I have had.

Can a bad throttle position sensor cause idle surging?

Idle surging can be caused due to other issues in the car, but if it happens in conjunction with other throttle position sensor symptoms, the culprit is often the TPS. At idle, the ECM will not get the correct information and the throttle will variate randomly causing idle surges. 3) Check Engine Light