The heater and A/C system does not switch to the.

Tiny
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  • MEMBER
  • 2002 CHEVROLET BLAZER
  • 18,900 MILES
The heater and a/c system does not switch to the floor vents?
Wednesday, December 26th, 2012 AT 7:29 AM

1 Reply

Tiny
HMAC300
  • MECHANIC
  • 48,601 POSTS
First pull the hvac fuse for 60 seconds then see if it works or not. Then check yoru actuators one is'nt working. Then check for a vacuum leak and see if vacuum is gettin to one of these vacuum motors. There is one for direction and another for heat/cold.
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Wednesday, December 26th, 2012 AT 2:53 PM

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