Vacum lines
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Joined: Jul 2008
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From: Phoenix
Vacum lines
is there anyway i can get a vacum diagram for a 86' f150 4x2 with a 351. it has a rough idle and runs smooth but doesnt shift i took the carb and intake off and now i think i missed a line puttin it all back together. there is a single vacum hard line that looks like it goes to the tranny is this right? im in a mess of trouble i need this thing to run perfect by tomorrow, as i am moving to school so any little tips tricks or info will help. thanks
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Joined: Jan 2001
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From: Virginia
That hard line goes down the backbone of the tranny to the tranny modulator. This hard line needs to be hooked up to manifold vacuum, either on the back of the intake, on the lines mounted on the firewall, or an extra port on the carb that sucks vacuum all the time.
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