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Old 06-13-2013, 08:18 AM   #1
driveguy
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Default 2003 Vue AC/Heat mixer not working

I have 2003 Vue and mixer is no longer switching to the floor. AC and heat works fine, but set the knob to floor and the mixer doesn’t divert. Ideas? Links to solutions?
Thanks in advance.

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Old 06-13-2013, 08:05 PM   #2
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2005 VUE 3.5L
2007 VUE 3.5L
Default Re: 2003 Vue AC/Heat mixer not working

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Originally Posted by driveguy View Post
I have 2003 Vue and mixer is no longer switching to the floor. AC and heat works fine, but set the knob to floor and the mixer doesn’t divert. Ideas? Links to solutions?
Thanks in advance.
The typical 02-04 HVAC module has four actuators.

Two are accessible from right side of module - these are outside air and panel (face) actuator - remove glove box to access.

There are two actuators accessible from left side of module - defrost and floor - remove panel above brake pedal to get at these actuators.

Your floor actuator might be bad - you could disconnect from the shaft to see if actuator rotates or perhaps the shaft is binding.

Replacement and/or testing for any of the actuators provide instructions to calibrate the actuators ... here's a cut and paste from service manual:

Calibrate the mode actuators by simultaneously pushing the A/C and RECIRC buttons on the HVAC control module 3 times each, within 2 seconds of initial push.

1. The A/C and RECIRC button LED's will flash while this calibration is taking place.
2. The calibration will take between 10 to 30 seconds depending on battery voltage.
3. The LEDs will quit flashing when the calibration is complete.
4. Cycle the ignition and verify proper operation.

Procedures to replace any HVAC actuator are too large to post - use PM to send an email address if you'd like any of the extracts.

...
I rarely visit forum but respond to private messages (PM). PM creates email to phone & please include email address with question. Avoid using Visitor Message feature ... I almost never check those.

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