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2000 Chevy Impala Air Flow through Vents

Tiny
JBCLINK
  • MEMBER
  • 2000 CHEVROLET IMPALA
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 57,000 MILES
All the air flow from the A/C or heater comes out through the floor vents regardless of the setting on the dash. The selector feels like it is working correctly but does not change th edirection of the air flow.
Friday, April 10th, 2009 AT 8:38 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,179 POSTS
The air flow direction is actuated by vacuum from the engine. It opens and closes vent doors in the hvac system. Check for vacuum leaks under the dash and from the vacuum supply from the engine through the dashboard. My guess is you will find one. If not, have the switch itself checked.
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Monday, May 4th, 2009 AT 1:43 PM

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