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06-01-2023, 08:52 AM | #1 |
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Location: Senatobia, MS
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Help! What is this line?
Can someone ID this line and where it should be connected?
1985 C10 Has AC Looks to be some sort of AC vacuum control line or something. Comes out of firewall and routed towards driver side.
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Once a Marine, always a Marine! My (Her) 57 Build "Beverly" My 66 Build "Betty" My 85 C10 "Old Blue" Help Me Find "Old Blue" OLD BLUE PART II |
06-01-2023, 11:28 AM | #2 |
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Re: Help! What is this line?
Goes to the vacuum ball, from the ball it goes to manifold vacuum with a check valve. That vacuum lines goes inside to the heater and AC controller for the hvac doors. Should be going not too far from where it is at the moment. The ball mounts to the evap box. I can see the feed line to the ball just below your thumb with the check valve
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06-01-2023, 11:47 AM | #3 | |
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Re: Help! What is this line?
Quote:
So if I were to get a new 'T' or something, Could I connect it somewhere in the red circle?
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Once a Marine, always a Marine! My (Her) 57 Build "Beverly" My 66 Build "Betty" My 85 C10 "Old Blue" Help Me Find "Old Blue" OLD BLUE PART II |
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06-01-2023, 01:26 PM | #4 |
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Re: Help! What is this line?
Where's your vacuum reservoir? That's where it's supposed to go, but yeah you can, but as soon as you shut the engine off nothing inside will operate vacuum wise
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06-01-2023, 01:48 PM | #5 |
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Re: Help! What is this line?
I will look today. I sold this truck a few years ago and just recently bought it back so I'll take a look.
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Once a Marine, always a Marine! My (Her) 57 Build "Beverly" My 66 Build "Betty" My 85 C10 "Old Blue" Help Me Find "Old Blue" OLD BLUE PART II |
06-01-2023, 07:21 PM | #6 |
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Re: Help! What is this line?
if you dont use a vacuum reservoir, it will be like my truck...., full throttle, a/c goes to floor one day I will put a reservoir in there
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06-01-2023, 11:17 PM | #7 |
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Re: Help! What is this line?
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06-02-2023, 07:59 AM | #8 |
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Re: Help! What is this line?
Bottom of a vacuum pot where the line goes. 2nd larger line goes to a manifold vacuum source. This one is next to the AC housing on the firewall. Some are spherical.
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06-02-2023, 10:56 AM | #9 |
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Re: Help! What is this line?
Pics should help
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06-02-2023, 07:29 PM | #10 |
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Re: Help! What is this line?
Thanks for everyone's help. I started digging around and found the T-connection where this is supposed to be hooked up to. Comes from the vacuum reservoir right behind my jack on Driver's side fender.
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Once a Marine, always a Marine! My (Her) 57 Build "Beverly" My 66 Build "Betty" My 85 C10 "Old Blue" Help Me Find "Old Blue" OLD BLUE PART II |
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