Loss of One or More HVAC Blower Motor Speeds on GMC Envoy

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.

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Average mileage: 114,325 (1,000–345,000)
9 model years affected: 1998, 2002, 2003, 2004, more2005, 2006, 2007, 2008, 2009
170 people reported this problem
88 people shared problem details
2006 GMC Envoy65,000
No blower at all, either hot or cold
2005 GMC Envoy148,000
Blower fan continues to run when engine is shut off.
2004 GMC Envoy115,000
Goes on and off at random.. 5 hasn't worked,in a long time ... every once in a while it works. How do I get this fixed? And how much should it cost?
Position 4 on fan control know does not work any longer. Other positions work fine.
My blower stopped working 1 # at a time and today #5 finally went
2005 GMC Envoy50,000
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.
2004 GMC Envoy85,000
Blower only works on 4/5 ...
2005 GMC Envoy69,000
Blower was not working on 3, 4, 5, fixed it now it is not working on 5 at all and 4 sometimes.
2003 GMC Envoy345,000
Air and heat stopped blowing
2006 GMC Envoy72,600
Blower motor does not cut off, sometimes, a/c and defrost. Ran bartery down.
2007 GMC Envoy105,000
2007 GMC Envoy Denali Blower remains on high, even when car is turned off, no other speeds will operate. When fuse is pulled, only then will the motor shut down.
2002 GMC Envoy192,000
The blower doesn't blow at all 1thru 5 I get heat when I keep moving
Heater would not blow properly. It was only at one speed. Had to take it in and replace the blower motor
2006 GMC Envoy191,380
Air condition nor heat blower is working!
2006 GMC Envoy120,000
Possible blower motor resistor.
2006 GMC Envoy72,000
My blower motor continued to run after the engine was shut off and key removed , now the blower won't do anything is it the relay or resister ? still not fixed the weather not cold my research tells me its mainly in cold weather thanks
2008 GMC Envoy100,000
Ac only working when the weather temp Is below 80 degrees. Blowing hot air.
2007 GMC Envoy50,000
ac fan quit...
2002 GMC Envoy16,895
The heater and air conditioner blower will not work in my 2002 GMC Envoy but down underneath the dash on the passenger side where the fan motor is located right behind the blower there's this little box with two screws in it there's this weird little switch behind those screws and if you replace that your heater will work in your air conditioner blower will work again
2006 GMC Envoy76,000
No.4 fan speed stop working 1,2,3 and 5 still working only been two weeks so far. Picking up both parts at autozone today $68.and some change.
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The blower is erratic and sometimes doesn't shut off I think its the blowerrelay. Any ideas
no ac no heat blower does not work not a fuse
Even when truck is turned off the blower is running at the top speed. I have removed the fuse...

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