Vacuum Check Valve routing ?
1st Gear
Joined: Sep 2018
Posts: 1
Likes: 0
Hvac line routing
Had to replace the motor in my 89. Now I need to replace the hvac vac line. Can't find which wire loom it is in as it is so brittle that it broke off. Want to do a direct replacement. Anyone know where it ooks up tonthe ac control?
Instructor
Joined: Feb 2023
Posts: 151
Likes: 29
From: Florida spacecoast
Plan now is to remove the rest of the cruise under hood, remove T in vacuum and go directly to the cannister. Source and ac will obviously remain, have plenty of new line.
anyone see a problem doing this, vac or electrical.
Thank you.
4th Gear
Joined: May 2023
Posts: 4
Likes: 3
From: Texas
My cruise vacuum ball is disconnected at the moment. I’m trying to figure out if that’s a source of vacuum leak, engine seems to be not running properly unless I cap the line that goes to it. Let me know if you found the same thing.
So i got a 90 w/zf6, the cruise control module is gone from under the right knee bolster on top of the bose receiver ( probably both came out @ same time when big jimbo wired in a regular stereo) see my thread. https://www.corvetteforum.com/forums...completed.html
Plan now is to remove the rest of the cruise under hood, remove T in vacuum and go directly to the cannister. Source and ac will obviously remain, have plenty of new line.
anyone see a problem doing this, vac or electrical.
Thank you.
Plan now is to remove the rest of the cruise under hood, remove T in vacuum and go directly to the cannister. Source and ac will obviously remain, have plenty of new line.
anyone see a problem doing this, vac or electrical.
Thank you.
Instructor
Joined: Feb 2023
Posts: 151
Likes: 29
From: Florida spacecoast
Replaced the vac line from the ball to the 3 way today. Ball held vac,
(I just sucked it pretty hard) phrasing ! got a brake vacuum pump and coulda woulda shoulda
ac seems the same, running wise, it could be different with all the leaks gone (at least in that line)
i'd buy a kit and replace it all but who knows where to start.
i removed all the under hood cruise parts today as well, Vacuum line is 1 piece from cannister to 3way now.
Get a brake vacuum pump from harbor freight and test the parts, thought i read that 3way can go bad internally, it could be the cause.
(I just sucked it pretty hard) phrasing ! got a brake vacuum pump and coulda woulda shoulda
ac seems the same, running wise, it could be different with all the leaks gone (at least in that line)
i'd buy a kit and replace it all but who knows where to start.
i removed all the under hood cruise parts today as well, Vacuum line is 1 piece from cannister to 3way now.
Get a brake vacuum pump from harbor freight and test the parts, thought i read that 3way can go bad internally, it could be the cause.
