1998 GMC Sierra Climate control

1998 GMC SIERRA
197,000 MILES • V8 • 4WD • AUTOMATIC
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LOFWYR
  • MEMBER
  • 2 POSTS
When I am turn the fan switch on the heat/ac on the fan will not work sometimes and sometimes it will come on. It does the same thing in both heat and cool.
Jun 4, 2008 at 11:52 AM
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MASTERTECHTIM
  • ✓Experienced Mechanic
  • 4,750 POSTS
most likely you need a new blower motor
Jun 4, 2008 at 12:10 PM
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