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1992 GMC Vandura 2500 Question: engine

 

Question

dewman56, 5.7L V8, Cedar Rapids, IA, November 30, 2009, 19:01
 Rookie

when engine warms up the idle gos up an down and if your setting at a stop light it will die sometimes

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  • Medium-star Best Answer
    November 30, 2009, 21:11
     Master

    Symptom: High idle. IAC counts are at 0.



    System: Emissions/PCM/Fuel



    Codes: N/A



    Problem: TBI (Throttle Body Injector) base gasket is leaking.

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  • Answer #2

    Visitor, December 27, 2010, 09:00

    belt diagram

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