6 liter fuel problemq
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6 liter fuel problemq
Hi I have a 2006 F250 with a 6 liter diesel I got about a hundred sixty thousand miles on it I've had it bullet-proofed haven't had too many problems with it I thought the fuel pump went out yesterday so I replaced it drove fine for a few hours then it started losing power and like it wasn't getting fuel and died I got it home took a test light and check for power at the fuel pump I don't have any positive or negative power can someone please help me I ran a hot wire and a ground straight from the battery and hooked it up to the pump and it worked but when I plug the factory wiring back into it and turn the key on I don't have any power I checked the fuses they're fine
Postmaster
Joined: Sep 2010
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From: Southern Cal
Check your fuel relay. They allow the fuel pump to start up for a few seconds. They flip off if they don't detect the engine running. They protect the pump from burning out if fuel isn't flowing through it. Not something that goes bad but very rarely but works with key power only.
Not a bad idea to changeout both fuel filters, knowing its recommended at about every 15k.
Not a bad idea to changeout both fuel filters, knowing its recommended at about every 15k.
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The first thing I did was changed to filters thinking that was the problem and when that didn't work I change the fuel pump thinking that was the problem I can't find the fuel pump relay when I have someone turn the key in the on position I get no power to the pump for some reason I don't have positive or negative but when I ran a wire directly from the battery negative and positive to the pump it works
Hotshot
Joined: Dec 2014
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From: Jersey Shore
Unfortunately the relay is a non serviceable item that is part of the fuse box, a really stupid design about our trucks.
I would test first if running only positive to the pump works, letting the factory ground in place. That would separate a relay issue or a ground circuit issue. Someone who is really good with wiring could potentially wire in a replacement relay rather then replacement, but I'm not sure if in the end it's cost effective.
I would test first if running only positive to the pump works, letting the factory ground in place. That would separate a relay issue or a ground circuit issue. Someone who is really good with wiring could potentially wire in a replacement relay rather then replacement, but I'm not sure if in the end it's cost effective.
Postmaster
Joined: Aug 2015
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From: NW IA
Unfortunately the relay is a non serviceable item that is part of the fuse box, a really stupid design about our trucks.
I would test first if running only positive to the pump works, letting the factory ground in place. That would separate a relay issue or a ground circuit issue. Someone who is really good with wiring could potentially wire in a replacement relay rather then replacement, but I'm not sure if in the end it's cost effective.
I would test first if running only positive to the pump works, letting the factory ground in place. That would separate a relay issue or a ground circuit issue. Someone who is really good with wiring could potentially wire in a replacement relay rather then replacement, but I'm not sure if in the end it's cost effective.
Hotshot
Joined: Dec 2014
Posts: 17,828
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From: Jersey Shore
https://www.ford-trucks.com/forums/1...p-circuit.html
Cheezit, post 6.
Going down the stairs is a chore right now ......
Cheezit, post 6.
Going down the stairs is a chore right now ......
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