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2007 Chevrolet Tahoe AC control issue

Tiny
JMTRAP08
  • MEMBER
  • 2007 CHEVROLET TAHOE
  • 5.3L
  • V8
  • 4WD
  • AUTOMATIC
  • 176,000 MILES
A/C is stuck in vent position. Cannot switch to floor or defrost. Also, air comes out of vents even when the system is in the off position.
Friday, November 14th, 2014 AT 8:16 PM

3 Replies

Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
The mode doors are operated by an electronic actuator mounted on the left side of the HVAC housing. You should be able to access it from under the dash on the driver's side to see if the linkage is stuck or jammed in some way but the actuator may be faulty.
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Saturday, November 15th, 2014 AT 5:32 AM
Tiny
JMTRAP08
  • MEMBER
  • 3 POSTS
Thank you. Do happen to know where I can find a picture of it?

Is it this one?
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Saturday, November 15th, 2014 AT 6:39 AM
Tiny
WRENCHTECH
  • MECHANIC
  • 20,757 POSTS
The first one looks like the temp actuator but the second one looks like the mode actuator.

https://www.2carpros.com/images/external/130937816.gif
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Saturday, November 15th, 2014 AT 7:09 AM

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