Why is my engine raceing

Asked by Huh2007 Jun 16, 2016 at 10:45 AM about the 2007 GMC Sierra 1500

Question type: Maintenance & Repair

My 2007 Sierra starts just fine, after a few minutes the engine starts to race and won't stop till I turn it off.

2 Answers
7,600

Dzemo answered 8 years ago

engine racing as in revving?? check your IAC (idle air control) valve?. Vacuum leak?

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