Fuel pump problems. Last step before dropping the tank.

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Dec 19, 2017 | 10:43 AM

Mark76

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From: Ohio

Fuel pump problems. Last step before dropping the tank.

2004 f150 supercrew
5.4 XLT 4x4 140k

Hello everyone.
Sunday i went to Lowes no problems all day.
Monday morning it wouldn't start. Engine cranks, and fires. No start.
No previous engine codes CEL light or other, no signs of a fuel pump problem prior.

I started with fuses, good.
relay is contacting, swapped for another relay for confirmation.
I checked the inertia switch, good.
Four pin connector above the fuse panel, green/yellow wire 12+ volts, good.

Truck has newer fpdm.
checked voltage and ground across white wire and black / yellow wire 12+ volts
jumped pins on fpdm connector, 2 outside pins each side. no fuel pressure, still,
removed fuel lines to fuel filter, no fuel pressure.

is there anything else I could check, before dropping the tank, to verify that it is the pump, or the connection at the pump?
It just puzzles me that the fuel pump just stopped working over night with no sign of going out... not the craziest thing I suppose..
Any input is greatly appreciated.

Dec 19, 2017 | 12:27 PM

steve(ill)

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that does happen. I had one on a 2002 EXP die while I was in the store.... One thing you can try is to kick the fuel tank to move the fuel pump motor a few thousands and see if it will start.... the rotor on the motor only needs to move to the next contact, or shift the bearings slightly to get it to spin.

Dec 21, 2017 | 07:52 AM

1saxman

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If it has a fuel pump driver module, that is the first place to look. Look for a corroded base plate which usually indicates the insides are toast. Its on the cross rail to the rear of the fuel tank. If that's it, its a cheap fix. Seeing that you're in the salt belt, I'd almost bet on it IF the '04 has it. I know the '07 does.

Dec 22, 2017 | 08:49 AM

steve(ill)

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good catch 1saxman............ I was thinking Heritage ( early 2004) ........ if he has the "new" model , then it will have the module just like the 2005-6-7-8.

Dec 23, 2017 | 12:33 AM

canstacker

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[QUOTE=Mark76;17667442]

Truck has newer fpdm.
/QUOTE]
I think the op covered that possibility.

Dec 23, 2017 | 04:17 PM

Mark76

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From: Ohio

thanks guys,
i checked and by/passed the fpdm...
So now looking online at fuel pumps.. I see there is a standard range tank and then a (high capacity) extended range tank. EVERY website i lok at has defferent options.
So I have the new style 139" wheelbase 4 door xlt 5.4L 4WD... What Pumps am i looking for Thanks !!!

Dec 23, 2017 | 04:35 PM

monkey_nuts

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Quote:

Originally Posted by Mark76

call your local autozone if there's one nearby. Probably tell with your vin but not always. They replaced one under warranty for me a year or so ago, not from my f150 but another vehicle.

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Dec 23, 2017 | 06:29 PM

monkey_nuts

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Whoa! $38.99 vs the $275-$375 I expect to pay at the auto parts store?

Dec 23, 2017 | 08:10 PM

#10

steve(ill)

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I just bought a $40. pump for our 2002 Explorer... works great...... last year I bought a $60. pump for a 2006 F150 ........ still going strong.

Dec 26, 2017 | 07:30 PM

#11

1saxman

Fleet Mechanic

Joined: Jan 2007

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Quote:

Originally Posted by Mark76

Yeah, I missed that about the FPDM.

Dec 29, 2017 | 10:28 AM

#12

carrick

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The only thing I can add, is if you have come to the conclusion to replace your pump and drop your tank, to be careful of what you buy online. Amazon (for instance) tries to do a good job of asking all the right questions, but can still be wrong. I wont buy auto parts from there anymore despite the 'bargains'. I replaced a fuel pump for my 5.4 fx4 supercrew standard bed from an online source because of a deal. less than a year later the sender is bad and the pump is failing. Either I got the wrong pump for my configuration or it was crap to begin with. Now it's frigid temps, snow on the ground, and I'm faced with replacing it again. Just beware.

Jan 8, 2018 | 12:22 PM

#13

Mark76

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From: Ohio

@ Carrick That is always a Big Fear!! Of Cheap parts online. But still I can find the Same Name Brand Parts almost 100$ Cheaper on line and that is crazy, Honestly...

So, my only problem now is that i cross shop web sites and come up with different options and part numbers...
I believe I have a 138.7 inch wheelbase New style Crew Cab Xlt 4x4 / 5.4L. w/ 5'5" Bed
I have come up with part numbers
MotoCraft PFS208
AIRTEK E2533M DELPHI FG0846
DENSO 935-4037 CARTER - p76343M

CAN ANYONE CONFIRM these Parts# Any of them, Just one..
Also How can you tell if you have the extended range tank?, or was it even available on an XLT SuperCrew Short Bed

Thanks !!!