Defroster and floor heat

Tiny
TONY MAY
  • MEMBER
  • 2001 CHEVROLET TAHOE
  • 5.3L
  • V8
  • 4WD
  • 220,000 MILES
Defroster is not working and my floor heat not working.
Tuesday, November 21st, 2017 AT 9:14 PM

1 Reply

Tiny
WRENCHTECH
  • MECHANIC
  • 20,761 POSTS
The mode changes are made by an electric actuator located on the left side of the HVAC housing. The actuator could be bad or stripped. Sometimes the mechanism just gets stuck and you can help it along with your fingers.
It is #3 in the picture.
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Wednesday, November 22nd, 2017 AT 6:17 AM

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