Question about 2001 GMC Sierra Crew Cab

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Fan will not blow air through vents - 2001 GMC Sierra Crew Cab

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  • dlewis3232 Sep 01, 2008

    The fan motor on my 2003 GMC Envoy just stopped working totally after a few days of working sometimes. Any suggestions for what may be the most likely problem? Thanks, David

  • Anonymous Oct 01, 2008

    05 gmc slt. sometimes it blows. sometimes it doesnt. and sometimes it blows even after i turn off the truck! The air is cold, so its not the compressor, thr digital read out still works. what controlls the fan???

    Thanks, Kelly

  • ltmadsen Jan 09, 2009

    my fan used to work then it would go off then come back on.now it doesn't work at all.i haver replaced the blower but still doesn't work. help!

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Try changing both of the cabin air filters (under glove box). Remove the insulation panel around the heater (4 screws) and the the door to the filter (1 screw). You will see the first filter, pull it straight down. The second filter is further towards the firewall/engine beside the first filter. You need to grab it, pull it towards you, and drop it down where the first one came out.

Worked great for me! Old filters were so plugged you couldn't see through them. Nobody will tell you they are in there. Filters were $20 (for both) at Napa.

Posted on Mar 25, 2009

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