Vacuum line Problem.
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Joined: Oct 2009
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Vacuum line Problem.
1980 Ford Ranger F-150 4x4 351 engine. Reverse went out of the transmission so I replaced the transmission and sometime while working on it 3 vacuum lines came loose from the tree that connected to the firewall. Now I don't know which hoses go where. I have one hose from my air cleaner, one from my modulator on the transmission and I can't find the other one. The other one would be the one that makes the rest vacuum. so that the mopdulator will let the tranny shift. I just can't seem to find it. ANy one know where it comes from or maybe where I could find a vacuum line diagram or something??? Anything helps, I have looked everywhere. Thanks
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Joined: Jan 2001
Posts: 56,977
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From: Virginia
If your vacuum supply line is missing, it will have to come from the engine. The engine is the source for the vacuum. Usually behind the carb there is a tree were several vacuum lines are hooked in.
