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2007 Chevy Avalanche Passenger side climate control

Tiny
MAYNOR007
  • MEMBER
  • 2007 CHEVROLET AVALANCHE
  • V8
  • 4WD
  • AUTOMATIC
  • 38,980 MILES
My truck will blow cold air properly when AC is turned on. Then after driving for awhile, the passenger side vents will blow hot air only. The driver side vents blow cold air and work fine. When hooked up at dealership computer gave error message but nothing pinpointing a problem is what the technician said. He says they need to take apart the dash to find the problem. Any advice as to the problem/cost? Thanks in advance!
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Thursday, May 22nd, 2008 AT 1:06 PM

2 Replies

Tiny
RHALL77
  • MECHANIC
  • 3,361 POSTS
Do you have duel climate controls. Have them check and see if the actuator is moving correctly and the temp door is moving freely.
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Monday, July 28th, 2008 AT 8:41 PM
Tiny
JETSA
  • MEMBER
  • 117 POSTS
There are separate temperature actuators for each side if your truck has driver/passenger heater/ac controls. The actuators control the blend door to make each side cooler or warmer. Actuator malfunction is the most likely cause of this condition.
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Saturday, August 9th, 2008 AT 12:05 AM

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