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 21, 2011 at 12:17 AM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
You need to open it up and investigate could be a door, vacuum and actuator problem-also check air blend door
Dec 21, 2011 at 12:30 AM
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