Heater blowing cool air, will not heat up

Tiny
ANONYMOUS
  • 2002 BUICK RENDEZVOUS
  • 103,000 MILES

Heater blowing cool air, will not heat up. Full of water / coolant, but is still overheating. When it starts to run hot as temp rises I can turn the controller to heat/ cool (opposite of what it is on )and it will come back down, but still not blowing heat.

Friday, January 4th, 2013 AT 9:28 PM

1 Reply

Tiny
DRCRANKNWRENCH
  • EXPERT
  • 3,456 POSTS

I am giving you a diagnostic walk through for your situation. Just follow the link below to get to it;

http://www.2carpros.com/articles/car-heater-not-working

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Saturday, January 5th, 2013 AT 5:46 AM

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