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sprinkles08
sprinkles08, ASE Certified Technician
Category: Buick
Satisfied Customers: 21586
Experience:  ASE Master and Advanced level certified. Factory trained with 15 years dealership experience
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I can not get air to come out on dash vents, i bought it

Customer Question

I can not get air to come out on dash vents
JA: How long has this been going on?
Customer: i bought it with the problem. i had it once in while
JA: What is the model/year of your Buick?
Customer: 1999 lesabra with climate control
JA: Are you hoping to fix this yourself? What have you tried so far?
Customer: i have got to linkage to see if it moves or not
JA: Anything else you think the mechanic should know?
Customer: where the arm comes out of the top housing after pulling the acturator the one on the housing will not turn
Submitted: 3 months ago.
Category: Buick
Expert:  sprinkles08 replied 3 months ago.

Hello and welcome to JustAnswer!

It sounds as if the failure is in the heater box.

If you're unable to get air from the vents yet it will change to other position, or the air does blow but you aren't able to change positions at all, then you have a blend door issue. If you're unable to move the mode door linkage by hand with the actuator removed then the door is stuck. It may be stuck just where it passes through the heater box or at the pivot, or there may be something in the heater box physically blocking it. Either way, the dash and heater box are going to need to be removed to disassemble the heater box for physical inspection.