Fuel System Issue
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Fuel System Issue
So I have dual tanks on my 96 F-250 351W. I just recently replaced the fuel pump in the rear tank and some other issues have developed when I use that rear tank. There is a loss of power under load and today it stalled on the freeway under acceleration. All of the wiring looked good the connections to the tank are solid. None of these issue are present when I use the forward tank. Are there fuel regulators or fuel relays for each tank? I'm fresh out of ideas and I don't want to burn a brand new pump up. Thanks for any help.
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I changed the rear pump because it had the same issues, but much much worse. It could have been a combination of a weak pump and this valve issue. Now that there is a brand new pump, that leaves the front pump. Will a fuel pressure test confirm the failure of this valve? Can it be fixed by dropping the front tank and replacing the pump or is this valve assembly separate?
Fleet Owner
Joined: Aug 2005
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From: Easton,Ks
I changed the rear pump because it had the same issues, but much much worse. It could have been a combination of a weak pump and this valve issue. Now that there is a brand new pump, that leaves the front pump. Will a fuel pressure test confirm the failure of this valve?
More than likely.
FTE Legend
Joined: Jun 2006
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From: Ottawa, Ontario
I think you just have a faulty pump in the rear tank, what brand was it? Anything but Motorcraft is basically a crap shoot, some of them last a year, some a week, some a DOA right out of the box.
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I hope it isn't bad! I got it from Rock Auto, but I'm not sure what brand it is. I just got a fuel pressure gauge, so I'll test it today. Meanwhile, the truck won't even running off of the rear tank now. It just shuts down.
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