2002 GMC Envoy Repair Question
Topics covered: Engine, Heater, Idle air control valve.
Mileage: 97,000 miles.
Mileage: 97,000 miles.
Asked on October 23, 2012
GMC Envoy Engine Problem
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
Asked by (pending member)Answer
Replied on October 23, 2012
Any applicable trouble codes? Check/clean the idle air control valve. The pcm should up the idle with hvac on.
