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2006 GMC Canyon fan only works on highest setting

Tiny
JANNBUSTER
  • MEMBER
  • 2006 GMC CANYON
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 42,000 MILES
The fan for the heating /cooling system all of a sudden stopped working on 1-3 speeds and will only work on 4, the highest. We checked the blower fuse and relay under the hood and they are both good. Could it be the switch assembly in the dash or something in the blower itself?
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Monday, August 24th, 2009 AT 5:29 PM

2 Replies

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Replace the blower motor resistor this the one that controls the speed of the blower motor thru resistances.
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Monday, August 24th, 2009 AT 6:13 PM
Tiny
MADMIKE1735
  • MECHANIC
  • 951 POSTS
Its located under the glovebox on the passenger side. Been seeing alot of these on the canyons.
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Tuesday, August 31st, 2010 AT 10:11 PM

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