Vent

2011 GMC TERRAIN
75,000 MILES • 3.0L • V6 • FWD • AUTOMATIC
Avatar
MI.MAN
  • MEMBER
  • 2 POSTS
Changed the mode door actuator because of a buzzing noise when you depressed the defroster button. Now I cannot get any air out of the floor vents where I did before I changed the actuator, all other modes are working as usual. I have tried a different actuator same problem and have tried several different ways of calibrating the system no change. I am open for any suggestions.

Thanks
Mar 26, 2017 at 2:33 PM
Advertisement
Avatar
HMAC300
  • CAR REPAIR CONTRIBUTOR
  • 48,601 POSTS
pull HVAC fuse out for 60 seconds inside truck you need to do that when you replace an actuator so they reset. do it with key on then reinstall.
Mar 26, 2017 at 4:21 PM
Avatar
MI.MAN
  • MEMBER
  • 2 POSTS
Thanks for the quick reply. I did find the problem one of the cam door levers was dislocated. Once I got it on location the system worked perfect.
Again thanks for your response.
Mar 26, 2017 at 5:33 PM
Avatar
STRAILER
  • CAR REPAIR CONTRIBUTOR
  • 54,415 POSTS
Glad you could get it fixed please use 2CarPros.com anytime we are here to help

Best, Ken
Mar 29, 2017 at 12:06 PM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.