2003 Pontiac Aztek Heat Blowing

2003 PONTIAC AZTEK
170,000 MILES • 4 CYL • AUTOMATIC
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THE GARNERS
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  • 1 POST
I've never had problems with my heat system but this year we've experienced the worst winter in 20 years. The heat/defrost only blows on #5 setting. 1-4 worked even last week but this most recent storm hit hard. It's turned up to at least #4 to thaw the car out with all the ice storms we've had but I don't drive with it on a high setting.
Feb 8, 2014 at 7:11 AM
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WRENCHTECH
  • ✓ASE Certified Mechanic
  • 20,761 POSTS
  • ASE Certified Mechanic
That is usually due to a burnt out blower motor resister but be warned that the reason they usually burn out is because of a tired blower motor that is drawing too much current so you may be replacing that also.
Feb 8, 2014 at 8:03 AM
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