Rear Ac blower not turning on.

2007 GMC ACADIA
146,000 MILES • 3.6L • V6 • FWD • AUTOMATIC
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ALANADRADE75
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  • 2 POSTS
Rear Ac blower not turning on. Everything in the front works fine. It started to turn on and off by itself and then one day it never came back on. Ac was cold and nice air flow before. But no it doesn't turn on. I have some fuses and relays under the hood but they seem to be ok. I don't know what else could it be.
Aug 28, 2015 at 10:13 AM
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HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
check rr blower motor fuse under hood fuse box 30amp first then have scanned for codes
Aug 28, 2015 at 10:25 AM
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ALANADRADE75
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Fuses are fine . and what do you mean scan for codes?
Aug 28, 2015 at 1:00 PM
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HMAC300
  • ✓ASE Certified Mechanic
  • 48,601 POSTS
  • ASE Certified Mechanic
you are going to have to have a local pro hook up a computer and scan for codes for heater system to make sure it's not a bad control head for that. all theheaters practically everything in the cars today have computers to run them. Of course it could be a bad switch/blower/resistor that sort of thing but you would have power going to the blower then.
Aug 28, 2015 at 3:48 PM
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