Fuel Filters

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May 18, 2008 | 09:32 PM

Vinford

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Cargo Master

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From: Williams Lake B.C.

Fuel Filters

1994 F-350 PSD 4x4
Is there a fuel filter in the frame under the drivers door?
I see something that looks like one on this truck I just got?
Is there a pump in the tank?
Where is the lift pump located?
Thanks ahead of time.

May 18, 2008 | 09:33 PM

immastrokinnow

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From: scaggsville, md

the 6Ls have filters under the drivers door. we only have the one. there is a pump in the tanks and a pump in the valley. hope this helps.

May 18, 2008 | 10:08 PM

84-250

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From: Munroe falls, Ohio

we only have one fuel pump, in the valley.

May 18, 2008 | 10:13 PM

immastrokinnow

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From: scaggsville, md

i coulda swore there was one in the tank to pump it up to the front of the truck.

May 18, 2008 | 10:20 PM

84-250

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From: Munroe falls, Ohio

nope, our pump is a two stage pump. It pulls fuel from the tank and filters it @5psi or so, then back to the pump again to boost it to 70psi or so.

May 18, 2008 | 10:27 PM

immastrokinnow

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From: scaggsville, md

gotcha. thanks

May 19, 2008 | 12:33 AM

Vinford

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Cargo Master

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From: Williams Lake B.C.

So is the pump in the valley part of the fuel bowl etc.?

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May 19, 2008 | 01:44 AM

colesdad1

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Quote:

Originally Posted by 84-250

we only have one fuel pump, in the valley.

How difficult is it to replace the pump? I was told it was about a 5 hour job, is it something a guy with semi decent wrenching skills could do?

May 19, 2008 | 05:16 AM

#10

BlueMule

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From: Ft Scott

Quote:

Originally Posted by Vinford

And I wonder what the cannister in my fuel line in the frame is?
Looks like a inline filter.

The fuel tank selector valve is mounted in the lines, inside the frame rail and below the cab, it selects which tank the pump draws fuel from and where the excess fuel returns to. That's probably what you're seeing. It also selects which tank the fuel gauge reads from.

May 19, 2008 | 05:22 AM

#11

BlueMule

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From: Ft Scott

Quote:

Originally Posted by Vinford

So is the pump in the valley part of the fuel bowl etc.?

No, the pump is seperate from the fuel filter canister. It's mounted in the valley directly to the rear of of the fuel filter.

May 19, 2008 | 08:25 AM

#12

84-250

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From: Munroe falls, Ohio

Quote:

Originally Posted by colesdad1

How difficult is it to replace the pump? I was told it was about a 5 hour job, is it something a guy with semi decent wrenching skills could do?

I havent replaced my pump but it looks possible in 5hrs or less. As long as you dont have a california emission truck you can remove the pump w/o taking the turbo off. I'd cut the short fuel lines on the pump and replace them. Take the fuel filter cannister off, replace any orings that are leaking, install the new hoses on the cannister.

May 19, 2008 | 08:34 AM

#13

MADVAN

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From: Levittown

Someone could have installed a prefilter.

Bill

May 19, 2008 | 12:01 PM

#14

yoslick

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From: NW Wisc

Quote:

Originally Posted by 84-250

I just did mine and it took me about 3 hours, becareful not to drop the tappet out the bottom of the pump and also have a large 1 1/4" combination wrench for the banjo bolt on the back side (very small hands are a huge +). Definate +1 on cutting the rubber fuel lines and replacing them as well as the o-rings on the filter drain, theres so much heat there they rot and crack and do not like to be reused!!

Slick!!