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2000 Tahoe is surging while idling and or stopped at red light why?

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  • 2000 Tahoe is surging while idling and or stopped at red light why?


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Answer #1 | 08/02 2014 12:49
Is the check engine light on? Check O2 sensor operation.
Answer #2 | 08/02 2014 10:56
#1. Change the fuel filter first. #2. Ask a Chevrolet dealer to test the fuel pressure on the fuel rail pressure fitting. This is a very inexpensive test BUT the fuel filter mist be clean to get an accurate fuel pressure reading. #3. Remove and clean the idle air control valve inside the throttle body.

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