AC not blowing from the front vents

Tiny
ALL4LO
  • MEMBER
  • 2012 GMC ACADIA
  • V6
  • 2WD
  • AUTOMATIC
  • 67,000 MILES
Air is blowing from all vents except the ones in the front. Nothing is coming from them at all.
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Tuesday, May 30th, 2017 AT 7:04 AM

3 Replies

Tiny
KEN L
  • ADMIN
Hello,

It sounds like you have a blend door actuator that has failed which is common on these cars. Here is a diagram (below) and a guide to help you get the problem fixed:

https://www.2carpros.com/articles/replace-blend-door-motor

1 - Mode Actuator

2 - Recirculation Actuator

3 - Blower Motor

4 - Blower Motor Control Module

5 - Air Temperature Actuator

6 - Evaporator Temperature Sensor

Please let us know what happens.

Cheers, Ken

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Thursday, June 1st, 2017 AT 11:53 AM
Tiny
WRENCHSLINGER
  • MEMBER
My rear blows fine but the front does nothing. I checked both actuators are working and the fuse is fine. I tried resetting the HVAC/ECAS by disconnected the battery but no change. Any other ideas would be very helpful. Thank you
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Sunday, September 9th, 2018 AT 12:55 PM
Tiny
KEN L
  • ADMIN
Hello,

There is an HVAC blower fuse that need to be checked for power, if that is good lets check the blower motor for power and ground. Here is a guide that will help also here are the blower motor and AC wiring diagrams so you can see how the system works and the fuse locations below:

https://www.2carpros.com/articles/blower-fan-motor-works-on-high-speed-only

and

https://www.2carpros.com/articles/how-to-check-a-car-fuse

Check out the diagrams (below). Please run this test and get back to us.

Cheers, Ken
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Sunday, September 9th, 2018 AT 1:45 PM

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