2000 GMC Jimmy defroster

2000 GMC JIMMY
89,000 MILES • 6 CYL • 4WD • AUTOMATIC
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BRIAN2384
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  • 1 POST
My defrosters only blow out cold air
Oct 6, 2009 at 7:26 PM
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JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 POSTS
Have the blender door checked. If it isn't working correctly, ti won't allow air to pass across the heater core.
Oct 7, 2009 at 7:58 AM