1979 Chevy Corvette heater/ac control assembly

1979 CHEVROLET CORVETTE
25,000 MILES • V8 • 2WD • AUTOMATIC
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RCR1960
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I am restoring some interior parts on this car. While replacing the face plate and lens, a part that is washer like with star shaped edges that are curved fell off the bottom of the control assembly. When I run the ac, vent, and heater controls, I only am getting air from the lower part of the car. Nothing from any of the dash vents. I am sure this missing peice has something to do with the problem. Do you have a diagram that you could send me showing the location of the part? I am stumped!! Your help is greatly appreciated.[img:daa74827eb]http://www.2carpros.com/forum/automotive_pictures/386127_Picture_1.jpg[/img:daa74827eb]
Jul 22, 2009 at 10:23 AM
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DOCFIXIT
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Hi
That is part of the vacumn master select switch. Pull out heater Ac controler find vacumn switch has a clear plug with svseral hyoses. Remove hoses that part holds vacumn pod together. @$8 dollar part. Replace and it will start working again.
Hope this helps
Thank for donate
Jul 22, 2009 at 3:04 PM
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RCR1960
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Found all the hoses you were talking about. Looks like that attatches to the control unit with 2 screws. That peice had already came off. I am still puzzled as to where this part goes. Could you send me a drawing or schematic on the breakdown of all this? I'm sure it would help me get it all back together. Thankk you!
Jul 23, 2009 at 8:56 AM
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DOCFIXIT
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it can't be fixed replace @$8 if you put hose piece on the part that is on selector the star piece fits over the round boss. Which may have broken off usually how they die.
Jul 26, 2009 at 12:26 PM