1992 GMC Vandura 2500 Q&A

1992 GMC Vandura 2500 Question: engine

when engine warms up the idle gos up an down and if your setting at a stop light it will die sometimes -
Answer 1
Symptom: High idle. IAC counts are at 0. System: Emissions/PCM/Fuel Codes: N/A Problem: TBI (Throttle Body Injector) base gasket is leaking. -
Answer 2
belt diagram -
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