Question about 1997 GMC Sierra

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The air will not come out of the vents only comes out of defrost and floor

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Check in the engine compartment for any broken vacuum lines

Posted on Sep 23, 2009

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A/C blows from defrost and floor vents, nothing from dash vents.


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Jul 09, 2009 | 1994 Toyota Camry

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Problem with air not coming out of vents.


Check for a vacum leak from the engine to the a/c.The color of the hose is black. Also check if the heater control valve hose is unplugged. If you have vacuum the it sounds like the door for the vent/floor/defrost is broken.

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Air comes out of the defroster and floor vents but not the air co


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