1995 GMC SONOMA
131,000 MILES
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BLINDSPOT
  • MEMBER
  • 1 POST
turn heater on speedometer quiets working and heater motor does not blow
Apr 9, 2013 at 11:13 PM
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HMAC300
  • CERTIFIED EXPERT
  • 48,601 POSTS
check grounds to dash and battery to body grounds
Apr 13, 2013 at 7:51 AM