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2002 Chevy Blazer

Tiny
LONZYC
  • MEMBER
  • 2002 CHEVROLET BLAZER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 92,300 MILES
My heater will not blow out the floor vent. It works through the defroster and vents just fine.
Thursday, February 25th, 2010 AT 9:58 PM

5 Replies

Tiny
HOMER1967
  • MECHANIC
  • 875 POSTS
Sounds like a blend door issue, do you hear it chaning over when you turn the control? Let me know.
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Thursday, February 25th, 2010 AT 10:12 PM
Tiny
LONZYC
  • MEMBER
  • 3 POSTS
No I don't hear it but have not listened real close. I think you are right, so is it mechanical or electrical.
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Thursday, February 25th, 2010 AT 10:19 PM
Tiny
HOMER1967
  • MECHANIC
  • 875 POSTS
It is most likely the blend door actuator, so that would be eletrical. Get down in the dr/side floor and listen real close while somebody turn the air control knob you should either hear movement or clicking if clicking then actuator is bad, follow noise to find it and remove it. Once you get it out turn the rod that it was connected to to verify that the door does open and close. Let me know.
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Friday, February 26th, 2010 AT 6:32 PM
Tiny
LONZYC
  • MEMBER
  • 3 POSTS
Thanks I will try to get to it in the next few days. Really appreciate your help.
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Friday, February 26th, 2010 AT 9:03 PM
Tiny
HOMER1967
  • MECHANIC
  • 875 POSTS
Your welcome, we're here if you need us.
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Friday, February 26th, 2010 AT 9:25 PM

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