No air blowing out front vents or defroster?

Tiny
ALCARRJR1972
  • MEMBER
  • 2005 PONTIAC MONTANA
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 172,661 MILES
No air blowing out front vents or defroster you turn on rear controls air is blowing out vents not getting hot either.
Friday, February 28th, 2025 AT 3:46 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,055 POSTS
Hi,

It sounds like you may have more than one thing happening. As far as the air flow direction is concerned, it is controlled by the mode door actuator.

The actuator is located at the end of the HVAC box under the dash. I attached directions below for replacing it. However, before doing that, check to make sure nothing has come disconnected. If everything appears okay, remove the actuator and keep it plugged into power. Change the airflow request to see if the actuator responds.

I attached the directions below.

I hope this helps.

Take care,

Joe

See pics below.
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Friday, February 28th, 2025 AT 9:36 PM

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