heater constantly blows out hot air

2001 CHEVROLET BLAZER
120,000 MILES
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KWILSON531
  • MEMBER
  • 1 POST
all vents work but even when ac is turned on the heater blows out very hot air. you cannot turn it off.
Jan 5, 2012 at 4:31 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,992 POSTS
Check the air blend door could be stuck in the heat position
Jan 5, 2012 at 4:44 PM
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