2002 GMC Envoy fan not working

2002 GMC ENVOY
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THOMASMOLANDSJR
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2002 GMC Envoy 6 cyl Four Wheel Drive Automatic

my heat works but the fan will not come on no ma tter what speed you have it on what could be the problem
Jan 9, 2010 at 9:36 PM
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RASMATAZ
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Check and test: Could be the blower motor itself, blower motor resistor,blower motor relay and HVAC control module.
Jan 10, 2010 at 2:22 AM