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post #11 of 14 (permalink) Old 10-15-2012, 01:37 PM
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Originally Posted by Bcamos View Post
My HVAC is stuck on high. Even on 1 bar the air comes out on high. Any ideas?
Its the VBC, part #27151-ZT00A
The fan will either be blowing on high no matter what setting or none at all up front.
I just replaced mine, easy to change.

This thread from titantalk.com is a great DIY:

VBC-Blower Fix

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post #12 of 14 (permalink) Old 10-15-2012, 11:09 PM Thread Starter
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Do a search for that problem. There's a fix on here somewhere for it.
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post #13 of 14 (permalink) Old 12-13-2012, 09:15 PM
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I don't know if I am having the same problem that you are but when I turn on the heater the driver side of my Armada heats up but the passenger side and rear vents stay cold. Any ideas?
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post #14 of 14 (permalink) Old 04-29-2014, 05:54 PM
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Defrost Door Actuator Replacement

Apologies to the site Mods if this post is in the wrong thread.

2006 Armada LE w/ auto A/C controls, adjustable pedals, and Bose stereo

Defroster Door Motor making noise

Symptoms are clicking/ratcheting noise from drivers side dash near gas pedal area when changing from defrost to floor vents or after key off.

There is a mode actuator located just below the defroster actuator, be certain which one is defective by changing from defrost to floor vents and observing where the noise is coming from. The defrost door actuator is located up higher in the dash and is the one which normally goes out.

Part # for the defrost door actuator is 27743-ZP00A about $40.00

Just some general tips

The accelerator pedal must be be moved out of the way in order to remove the stereo amp, it is not necessary to unplug any of its connectors, just remove the cable which runs over to the brake pedal, then unbolt the pedal and move it to the side.

The stereo amp (located behind the body control module) has 2 connectors, the black one is easy to remove, the white one has the release tab located on the firewall side and is hard to get to. I unbolted the amp, disconnected the black connector then manipulated the amp and turned it around to access the white connector.

The new actuator splines may not line up, just insert a wide flat bladed knife or screwdriver and turn the defroster door mechanism to match as close as possible the posistion of the new actuator splines. As you are installing the new actuator turn it back and forth as needed to line it up.

Good luck and feel good about saving a ton of money by doing it yourself
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