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Front defroster not blowing

Tiny
JOHN BARZAL
  • MEMBER
  • 2007 CHEVROLET TAHOE
  • 5.3L
  • 4WD
  • 150,000 MILES
I've replaced the door actuator and tried re-calibrating, i.E. Turning key on two notches, pressing auto on climate control, pulling fuses and restarting and still not working. What should I try next?
Monday, December 30th, 2019 AT 6:08 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,604 POSTS
Hello,

If you remove the actuator and turn the system on can you see the actuators moving? Also when the actuator is out can you move the pivot manually to see if the blend door inside the plenum is working as well? this guide can help:

https://www.2carpros.com/articles/replace-blend-door-motor

Please run down this guide and report back.

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Tuesday, December 31st, 2019 AT 11:36 AM

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