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car ac only blows down not in dash1971


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bradnree
New User

Jun 14, 2015, 9:38 AM

Post #1 of 2 (1356 views)
car ac only blows down not in dash1971 Sign In

1971 buick skylark 350 75,000miles


Tom Greenleaf
Ultimate Carjunky / Moderator
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Jun 14, 2015, 10:01 AM

Post #2 of 2 (1350 views)
Re: car ac only blows down not in dash1971 Sign In

Be glad this should be easy as things go. Bet all cable operated and can either fall off a pivot for flaps (that change modes of output air) to fix and may if broken have to fix broken cables to same zig-zag ends and length.


Maybe a vacuum set up? Does it hiss when you change modes? A look see for vacuum controls and a near sure round plastic storage ball under the hood. When/if the hose for that breaks it will default to where factory wanted unless another problem prevents it. Most would be defrost but a few were low heater ducts? Why, I don't know. Look for that hose under hood most common place to break near firewall. If that and found can splice in hose or do whole hose automotive plastic vacuum parts, barbed to hold as a splice,


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