Question about 1991 Chevrolet Caprice

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1991 chev caprice. car starts ok, but surges @ idle and cuts out when throttled.

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  • tatejt Jun 10, 2009

    turns out it was a bad injector flooding one side of throttle body. thanks

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  • 206 Answers

Remove the large hose at the throttle body that come from the air cleaner clean the black carbon off of the large butterfly and housing with carb cleaner. Also have you checked plugs and wires

Posted on Jun 05, 2009

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1 Answer

Why does a 1991 Chevrolet caprice stall while idling ?


could be cause by idle air control valve on the throttle body, usually u can remove and clean put it back , make sure unhook battery before removing

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Technically, you don't.
The computer controls idle speed via an idle air control valve that is screwed into the side of the throttle body.
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