The A/C and heat works but only through the defrost?

Tiny
H3LPPL3A53
  • MEMBER
  • 2006 PONTIAC G6
  • 4 CYL
  • AUTOMATIC
  • 186,000 MILES
One day I turned my defrost on and now I can't get air to blow from my vents. I can turn the knob, but it does not change the direction the vents blew.
Wednesday, July 26th, 2023 AT 7:20 PM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 109,885 POSTS
Hi,

It sounds like you have a faulty mode door actuator. The mode door is what is responsible for airflow direction.

If you look at the attachments below, I included the directions to replace the actuator. Use the directions to remove it first. Once it is removed, see if it responds when you request it to change airflow direction.

Let me know if this helps.

Take care,

Joe

See pics below.
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Wednesday, July 26th, 2023 AT 10:37 PM

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