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Vacuum Diagrams
Thread Starter
Heel & Toe
Joined: Aug 2012
Posts: 19
Likes: 0
Vacuum Diagrams
Can someone please help with the vacuum diagrams for a 1980 corvette. I need to connect everything 100% since I live in California and smog is a big deal. I need to connect the air cleaner and everything else. I am starting from scratch so I need all the help I can get. Thanks to all in advance.
Safety Car
Joined: Feb 2006
Posts: 4,367
Likes: 59
From: FL
Can someone please help with the vacuum diagrams for a 1980 corvette. I need to connect everything 100% since I live in California and smog is a big deal. I need to connect the air cleaner and everything else. I am starting from scratch so I need all the help I can get. Thanks to all in advance.
http://vettevacuum.com/
Melting Slicks
Joined: Sep 2011
Posts: 3,372
Likes: 215
From: Peoria Arizona
Instructor
Joined: Jul 2012
Posts: 171
Likes: 22
From: Kentucky
This is an old post but I have the same problem. PO removed some of the vacuum lines now I have no idea what goes where. The 3 way connection at the intake is open at the top. I think that may go to the auto trans mission. I have also read there is a line to the cruise control. There is what appears to be a vacuum line that hangs down by the temp sender. It has a large end on it but very small opening deep in what looks to be a connector, almost like a spark plug wire but no wire inside just a hole, goes into the bundle with other vac lines. Many other electrical issues I am trying to chase down to. He had removed original breather which i have replace and am making vacuum line connections there. This is the last phase of a major rebuild. Looking forward to getting it road ready soon. By the way its an 1980 350 with cruise and auto transmission.
Melting Slicks
Joined: May 2015
Posts: 2,365
Likes: 428
From: Cape Girardeau Missouri
This is an old post but I have the same problem. PO removed some of the vacuum lines now I have no idea what goes where. The 3 way connection at the intake is open at the top. I think that may go to the auto trans mission. I have also read there is a line to the cruise control. There is what appears to be a vacuum line that hangs down by the temp sender. It has a large end on it but very small opening deep in what looks to be a connector, almost like a spark plug wire but no wire inside just a hole, goes into the bundle with other vac lines. Many other electrical issues I am trying to chase down to. He had removed original breather which i have replace and am making vacuum line connections there. This is the last phase of a major rebuild. Looking forward to getting it road ready soon. By the way its an 1980 350 with cruise and auto transmission.
I really suggest you get vacuum hose kits from Doc Rebuild. (look it up) You get the PROPER hoses cut-to-length, connectors, clamps and excellent diagrams. Believe me that PROPER hoses matter in our cars and many are not what you can buy from a regular parts house! Inside AND outside diameters matter in numerous places--particularly the headlamps. Material matters in the EVAP system as fuel vapor eats standard vacuum hose.
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