1999 Chevy Silverado idle speed out of sync


Asked by Jun 27, 2015 at 06:48 AM

Question type: Maintenance & Repair

The idle speed takes over while driving ,it accelerate automatically

1 Answer

Tom Demyan

Clean the throttle body and idle control first, might be full of carbon. Look on youtube on how to do it. Do you have a CEL on?

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