Question about 1995 Buick Regal

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95 Regal blows hot air out the defrost only- no where else!

It has dual climate control. the only thing that works is hot air coming out the defrost. what part do i need to replace or fix?

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You have a vacuum problem the car uses the vacuum from the engine to switch the door that makes the air go out the different levels defrost panel and floor it also uses vacuum to move the door which moves to make it pull air through the heating core and the cooling a-coil. Have you messed around on the back of the engine (changing spark plugs, or other work up against the firewall) around the time it stopped changing heat/cooling functions? If so you probably disconnected a vacuum hose if not you may just have a hose that is in need of repair. Also the switch panel that houses the controls can go bad it is an easy fix you can change the whole peice and most of the time it has one big plug in that does it all sometimes it has a plug in for each control fan temp and where the air is discharged

Posted on Jul 04, 2009

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Posted on Jan 02, 2017

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