2004 Chevy Avalanche air conditioning to driver side

Tiny
ARTPATTI
  • MEMBER
  • 2004 CHEVROLET AVALANCHE
  • V8
  • 4WD
  • AUTOMATIC
  • 140,000 MILES
Yesterday during a drive home, the air conditioning ducts on the driver side started throwing very hot air, yet the passenger side continued with the cold air. I have taken the cover off at the bottom under the dash that covers things there and can find nothing that could cause it. Where is the actuator that opens/closes the door to each side-can this go out and cause the air not to come out, only heat? How do I get to it
Saturday, September 19th, 2009 AT 9:39 AM

1 Reply

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
Hi artpatti,

Thank you for the donation.

Problem should be caused by the air mix actuator. A scan tool might be able to retrieve for trouble codes.


https://www.2carpros.com/forum/automotive_pictures/192750_LeftAirTempActuator04AvalancheFig26_1.jpg



Item # 2 is the actuator and is the most likely cause.
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Monday, September 21st, 2009 AT 9:10 AM

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