1999 Chevy Tahoe diverter to air vents

Tiny
GARY BURNS
  • 1999 CHEVROLET TAHOE

Air Conditioning problem
1999 Chevy Tahoe V8 Four Wheel Drive Automatic 150k miles

my a/c vent control does not function properly. Switching from windshield to air ducts it sticks and does not complete the transition. How does this system work? How do I get at it?

Do you
have the same problem?
Yes
No
Sunday, January 3rd, 2010 AT 4:11 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • EXPERT
  • 68,362 POSTS

Actually, in this case I believe you are looking for a vacuum leak. The vent doors are actuated by vacuum. If there isn't enough because of a leak, it will cause this. Check under the dash for damaged or disconnected hoses. Also, with the engine running, listen for a hissing sound.

AS far as access, you need to remove part of the dashboard, glovebox. To access the HVAC system and the vent doors.

Please consider a donation to help us answer more questions.
Was this
answer
helpful?
Yes
No
Tuesday, January 5th, 2010 AT 9:46 AM

Please login or register to post a reply.

Related Vent Questions

Help us by donating