2002 GMC ENVOY
105,000 MILES
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SGTMAJ28
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  • 1 POST
when heater is on cold air comes out of drivers side vents passenger vents have warm air copming out
Nov 28, 2012 at 3:07 PM
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HMAC300
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one of the actuators is screwed up it's eitehr the actuator or the door is broken or it's not getting power which would mean the control module. they are 1/&2 on drawing.
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Nov 28, 2012 at 4:27 PM