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.Google+
Car Problem Reports
GMC Envoy AC Blower Inop Due to Failed Resistor
GMC Envoy Problem
Average Mileage: 126,977 mi (10,000 mi - 1,220,127 mi)
Visitor, 2006 GMC Envoy, 65,000 mi
No blower at all, either hot or cold
Visitor, 2005 GMC Envoy, 148,000 mi
Blower fan continues to run when engine is shut off.
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
Visitor, 2004 GMC Envoy, 85,000 mi
Blower only works on 4/5 ...
Visitor, 2005 GMC Envoy, 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.
Visitor, 2006 GMC Envoy, 120,000 mi
Possible blower motor resistor.
Visitor, 2005 GMC Envoy, 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.
Visitor, 2006 GMC Envoy, 72,600 mi
Blower motor does not cut off, sometimes, a/c and defrost. Ran bartery down.
Visitor, 2003 GMC Envoy, 1,220,127 mi
Heat or ac will not work in front back heat works well sometimes if I disconnect battery it works but sometimes not