A/C vents not working properly?

TMARTINEZ4

MEMBER
2002 BUICK RENDEZVOUS
V6
4WD
AUTOMATIC
135,248 MILES

The AC/heater blows just fine, but only through the defroster and through the back vents slightly but not at all through the front facing vents. Please help. Thank you all in advance!

Thursday, April 27th, 2023 AT 6:00 PM

3 Replies

JACOBANDNICKOLAS

MECHANIC
109,885 POSTS

Hi,

Based on the description, the problem seems to be related to a mode door actuator. This actuator is responsible for changing the airflow direction.

Take a look at this link. You may find it helpful.

https://www.2carpros.com/articles/air-vents-stay-in-the-defrost-position

Next, I attached the removal and replacement directions below for a manual climate control system. If you have automatic climate control, let me know.

Let me know if this helps or if you have other questions.

Take care,

Joe

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Thursday, April 27th, 2023 AT 9:05 PM

TMARTINEZ4

MEMBER
2 POSTS

It does not have automatic climate control, just the basic knobs. Thank you so much for your response, I will order the part and let you know if it works. Thank you so much.

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Friday, April 28th, 2023 AT 9:54 AM

JACOBANDNICKOLAS

MECHANIC
109,885 POSTS

Hi,

Thanks for the update. If you can, let me know if that resolves the problems. I'm interested in knowing. Also, feel free to let me know if I can help.

Take care,

Joe

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Friday, April 28th, 2023 AT 10:38 PM