Need Help with A/C Mode selector
Thread Starter
2nd Gear
Joined: Aug 2018
Posts: 2
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Need Help with A/C Mode selector
New to the corvettes I got this 78 Corvette with A/C however I can not get the AC to blow To the face and not the feet anyone has had or does have this same issue how did you fix it?, brand new switch installed correctly, AC blower works.
Melting Slicks
Joined: May 2015
Posts: 2,365
Likes: 428
From: Cape Girardeau Missouri
Welcome to the forum.
I presume you know that the HVAC selection is vacuum controlled.
First you need to find out if you have vacuum at the selector switch. Disconnect the solid black hose at the #1 connection at the back of the selector. With the engine running you should feel vacuum. That's the very first step. Report back what you find.
For nearly anything else you really need to get a hand vacuum pump. They're EXTREMELY useful on our cars as so much is vacuum controlled. The MiteeVac set is excellent, inexpensive and available at almost any car parts house.
I presume you know that the HVAC selection is vacuum controlled.
First you need to find out if you have vacuum at the selector switch. Disconnect the solid black hose at the #1 connection at the back of the selector. With the engine running you should feel vacuum. That's the very first step. Report back what you find.
For nearly anything else you really need to get a hand vacuum pump. They're EXTREMELY useful on our cars as so much is vacuum controlled. The MiteeVac set is excellent, inexpensive and available at almost any car parts house.
Last edited by SwampeastMike; Aug 8, 2018 at 03:36 PM.
Melting Slicks
Joined: May 2015
Posts: 2,365
Likes: 428
From: Cape Girardeau Missouri
