Question about 1993 Buick Century

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No air in side vents

I have a 93 buick century and there are two side vents on the side of the dash that are supposed to thaw out the side window but i have no air flow at all.

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  • Roberta Smith
    Roberta Smith May 11, 2010

    they only function i believe when it is in defrost mode... if the problem is not enough air going out to them ... consider closing some of the top vents along the dash.



    Robert

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  • 91 Answers

Sounds like the vaccuum controls that direct the flow of air from your heat/ac fan might be out. There are small one-way valves that control these functions. they're cheap $1-$5 dollars. These keep the vents working properly. CHeck under the hood near the firewall, look for small little black plastic lines. These lines are joined at places with a small disc shaped device maybe 1/2 thick. These are the valves that might be problematic. Pull one out and see if you can blow air though it. also try to **** air through it. If you can do both, than the part is bad and needs to be replaces.

Posted on Jan 23, 2009

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