Mechanics

CAR ONLY EMITS HOT AIR

2003 Mercury Sable • 125,000 miles

Day one my A/C was pumping 100% cold crisp air, the next day the car will only pump the hottest heat possible. It doesn't matter if I have it on 60 degrees or 90 degrees, A/C or heat; it just pumps the hottest air possible. I can turn everything off and on just fine, and I can change the direction of the heat (feet, dash, defrost), and I can control the intensity of the blower, just not the temp. What is the problem and how can I fix this?
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Mrswby
March 21, 2012.




Check the blend air door.



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