CAR RUNS OK TILL I TURN ON HEATER OR AIR

2002 GMC Envoy

Tiny

Anonymous

October, 23, 2012 AT 2:41 PM

Car runs ok till I turn on heater or air. Then it bogs down and when sitting will die out. Can feel the drag on engine as driving. Also the compass never does the correst direction and the external temp guage in radio is always wrong

FOUND 14750 RELATED QUESTIONS

1 Answer

Tiny

JDL

October, 23, 2012 AT 4:00 PM

Any applicable trouble codes? Check/clean the idle air control valve. The pcm should up the idle with hvac on.

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