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#1 |
Registered User
Join Date: Feb 2004
Location: Massachusetts
Posts: 269
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Vacuum Can
I have the vacuum canister mounted on the heater box, I think I see it on mos AC equipped trucks. Mine has a vacuum line running from the manifold to the can and that's it. What could this be accomplishing hooked up like that. What is the proper connection?
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72 Cheyenne Super 4x4 SWB |
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#2 |
Registered User
![]() Join Date: May 2002
Location: North Carolina
Posts: 1,234
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That's it
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Stepsides look like real trucks! Smitty ![]() |
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#3 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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Jeepster, is there another nipple on the vac can?
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#4 |
Registered User
Join Date: Feb 2004
Location: Massachusetts
Posts: 269
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It's difficult to tell, there is some kind of knub I can feel on the back side, but I don't think it's an opening. It just seems like such a little can connected only to the manifold, can't be doing much of anything.
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72 Cheyenne Super 4x4 SWB |
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#5 |
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![]() Join Date: May 2002
Location: North Carolina
Posts: 1,234
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It's a vacuum reservoir--all it does is maintain vacuum to activate the heater/ac controls!
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Stepsides look like real trucks! Smitty ![]() |
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#6 |
Registered User
Join Date: Feb 2004
Location: Massachusetts
Posts: 269
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Yes but it needs to connect to something. I took a closer look and found that, that knub I felt was in fact another nipple, and I found the little vacuum line had fallen off that goes into the vacuum switch on the Heat/AC controller.
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72 Cheyenne Super 4x4 SWB |
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#7 |
its all about the +6 inches
Join Date: Jan 2001
Location: Hilliard Ohio
Posts: 2,693
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The interesting thing about those is, if you don't have a check valve, I don't see how they can do anything.
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#8 |
Registered User
Join Date: Jun 2002
Location: Knoxville Tenn.
Posts: 3,058
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check valve inside
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56 Chevy Bel-Air 2dr. HT (purchased new) 71 Chevy Cheyenne SWB PU (502HO) 65 GMC short bed step--work in progress and my gofer |
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