Stalling with heat or air on

Asked by Ernest Oct 30, 2020 at 12:05 PM about the 2005 GMC Envoy 4 Dr SLE 4WD SUV

Question type: Maintenance & Repair

2 Answers
100

Mazdamattk answered 3 years ago

Maybe the idle air control is not increasing the idle for the added load of turning on the blower motor.

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11,255

FJ4072 answered 3 years ago

Hello there. When this started, I'm betting the battery was disconnected for whatever reason. Will happen if AC or defroster is on. Cheap fix, remove fuses # 10 and #28 under the hood. Then remove your throttle body, and clean it with a sensor safe spray like Seafoam, clean with soft bristle brush and a rag. Put back together, done.

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