Car Problem Reports

GMC Envoy AC Blower Inop Due to Failed Resistor

GMC Envoy Problem
44 Reports
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Model Years Affected: 1998, 2002, 2003, 2004, 2005, 2006

Average Mileage: 90,925 mi (10,000 mi - 165,000 mi)


The HVAC blower motor may stop working at one or more speeds due to a faulty blower motor resistor block. Our technicians recommend to confirm the resistor is at fault by first checking the operation of the switch.

  • Visitor, , 85,000 mi

    Blower only works on 4/5 ...

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  • firefoxny, , 103,000 mi

    My blower stopped working 1 # at a time and today #5 finally went

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  • jimwally, , 82,000 mi

    Position 4 on fan control know does not work any longer. Other positions work fine.

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  • Visitor, , 50,000 mi

    The blower for the back of the vehicle is stuck on and is blowing hot air. It will not turn off and it won't blow cold air. Also, The blower level 5 in the front part stopped working. The air conditioning is not working in the front either.

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  • Visitor, , 65,000 mi

    No blower at all, either hot or cold

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  • Visitor, , 69,000 mi

    Blower was not working on 3, 4, 5, fixed it now it is not working on 5 at all and 4 sometimes.

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  • Visitor, , 154,000 mi

    Not fixed.

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  • Visitor, , 89,000 mi

    Blower motor ran constantly then stopped all together. Seen recall for this on other GMC models but not this GMC Denali Envoy, WHY?

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  • Visitor, , 90,000 mi

    Fan blower stopped blowing. I removed the blower and checked the voltage. It showed 10 volts on level 1, 2, 3, and 4, and 12 on 5. Thought that since I was getting voltage and it changed at level 5 that this was enough voltage, so I assumed that the blower motor went bad. Nope, after spending $100 for a new blower motor, plugged the new one in and still nothing. Usually the moving part - the blower motor - goes bad not the simple relay. I have never had a blower relay go bad. Frustrating. I guess the next thing is to figure out how to replace the relay.

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  • Visitor, , 82,000 mi

    blower motor for the interior will not work

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