When truck is started it goes from idle to 2500 RPM by itself.

Asked by Mar 23, 2015 at 01:41 PM about the 2005 Chevrolet Silverado 1500 LS Ext Cab 2WD

Question type: Maintenance & Repair

When you start the truck it idles normally for a second and then the engine races up to
over 2400 RPM on its own!  What causes this?  Cannot see an idle adjustment!

1 Answer

7,615

Have it scanned, possible throttle position sensor issue

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