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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

351w efi Vacuum tree help

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Old Apr 4, 2015 | 05:06 PM
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351w efi Vacuum tree help

Alright so I am one hose away from finishing my truck motor but I can not fin the hose it belongs right here.


It will run with it open but runs super rich. It shuts down the engine if I cap it. So does anyone have a solution?
 
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Old Apr 4, 2015 | 06:00 PM
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My '95 california truck has 3 line that are connected to a 1 plug connector and can't tell were they all run one does go to fuel pressure the other 2 go around the back of the intake.
 
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Old Apr 4, 2015 | 06:13 PM
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This is what my '95 looks like
 
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Old Apr 4, 2015 | 06:24 PM
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That one goes to the fuel pressure regulatar but can't find were it goes. Looks like it goes to a blend door and to a rounded rectangle canister.
 
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Old Apr 4, 2015 | 07:11 PM
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im guessing your canister is the coffee can and i'm straight with all of that but this one is really throwing off the engine big time
 
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Old Apr 4, 2015 | 07:42 PM
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OK.. I see some non standard parts like those mustang valve covers so what systems have you removed? It's possible you don't have anything to plug in there so just cap it, if the truck doesn't run right like that you have other problems.
 
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Old Apr 4, 2015 | 08:44 PM
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Originally Posted by Conanski
OK.. I see some non standard parts like those mustang valve covers so what systems have you removed? It's possible you don't have anything to plug in there so just cap it, if the truck doesn't run right like that you have other problems.
My phone is broken so thats not even my truck but that is the same vacuum tree
 
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Old Apr 5, 2015 | 12:53 PM
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From: tx
On my '96, one red goes where you see it in the pics above then the harness circles around the back of the engine and then towards the front where the blacl will go to the vapor canister (plastic) and the other red goed back further to a tee next to the trans dip stick
 
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