2004 DHS started whirring when idling

Asked by kc129 Jan 24, 2014 at 02:12 PM about the 2004 Cadillac DeVille

Question type: Maintenance & Repair

Cadillac started making a whirring noise when throttle is not engaged. Also, when driving, it stops running. I can pull over and will restart, with no problems. When I restated today, and let idle it started revving up. Mechanics cannot figure out why it is stalling.

199,785

dandyoun answered 10 years ago

Check for loose vacuum hoses. It also can be either a dirty/faulty idle air control valve and or dirty throttle plate.

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2004 DHS started whirring when idling

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2004 DHS started whirring when idling

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