What is the problem with my heat air flow?

2003 CHEVROLET BLAZER
72,000 MILES
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DCZUBIK
  • MEMBER
  • 1 POST
Blower works fine but the heat only comes out through the vents. It doesn't matter what the setting is on (defrost, floor, etc.).
Dec 20, 2011 at 4:17 PM
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RASMATAZ
  • ✓Experienced Mechanic
  • 75,992 POSTS
You need to open it up and investigate could be a door, vacuum and actuator problem-also check air blend door
Dec 20, 2011 at 4:30 PM
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