2004 Chevy Avalanche Air Flow Problem

2004 CHEVROLET AVALANCHE
37,500 MILES • 6 CYL • 4WD • AUTOMATIC
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NAVYPOKERFISH
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  • 1 POST
I have air comming out of the side vents in the dash, the defrost vents on top of the dash, the vents under the steering column and the vents in the back portion of the center console but have no air comming from the vents on the front of the dash. I have verified that the the open close flapper is fully open. Request your assistance in identifying the problem.
Jun 9, 2010 at 10:41 AM
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JACOBANDNICKOLAS
  • ✓ASE Certified Mechanic
  • 110,194 POSTS
  • ASE Certified Mechanic
I believe you are looking for a vacuum leak in this case. Check under the dash and hood for leaks. Also, with the engine running, you may get lucky and hear a hissing sound from where it is leaking.
let me know what you find.

Joe
Jul 10, 2010 at 11:04 PM
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