2005 Chevy Express All air comes out defrost vent

Tiny
GUSTINGANG9
  • MEMBER
  • 2005 CHEVROLET EXPRESS
  • V8
  • 2WD
  • AUTOMATIC
  • 76,000 MILES
No matter what setting we put air on (defrost, vent floor), all air comes out defrost vents. There is also a small air hissing sound inside van.
Do you
have the same problem?
Yes
No
Sunday, March 8th, 2009 AT 3:42 PM

1 Reply

Tiny
MERLIN2021
  • MECHANIC
  • 17,250 POSTS
Find the hiss, that will be a vacuum leak, plug that hose back in, or replace the leaky controller, and it will be fixed, vac leaks make the system defualt to defrost registers.
Was this
answer
helpful?
Yes
No
Sunday, March 8th, 2009 AT 4:03 PM

Please login or register to post a reply.

Sponsored links