HVAC blows air everywhere except dash vents?

AVERY1123

MEMBER
2009 CADILLAC CTS
3.6L
V6
2WD
AUTOMATIC

I thought it was the mode actuator but if that was the case why are the back vents blowing?

Saturday, June 3rd, 2023 AT 9:22 AM

1 Reply

KEN L

MASTER CERTIFIED MECHANIC
47,643 POSTS

Yep, this happens when the mode blend door actuator goes out here is the location so you can replace the unit to fix the problem. Check out the images (below). Please let us know if you need anything else to get the problem fixed.

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HVAC blows air everywhere except dash vents?

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