1988 Ford E-350 Fuel Problems 460ci EFI 7.5l

Figuring out the fuel issue in Vansquatch. Replaced fuel filter, found "mud" rust in the intake. Replaced alternator and voltage regulator. Now replacing the fuel pressure regulator to see if it helps

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UPDATE 3/21/17: It was excactly as I suspected. There was so much rust in the two tanks, that both fuel pumps were cemented and had very low output, as well as a vacuum leak. The return fuel filter was also gummed up with rust and was causing the engine to run rich. The van eventually had too many problems so I had to let it go, but I figured I could share my experience with you guys.

[JoeClarkCinema]

UPDATE 3/21/17: It was excactly as I suspected. There was so much rust in the two tanks, that both fuel pumps were cemented and had very low output, as well as a vacuum leak. The return fuel filter was also gummed up with rust and was causing the engine to run rich. The van eventually had too many problems so I had to let it go, but I figured I could share my experience with you guys.

[shyecjj]

Bought a "quigly" 1988 e350, EFI 460 **4x4*** van and LOVE-THE-HELL-OUT-OF-IT. Its also the version with no windows on side or back from factory!!!

[davidclarence]

One has a 1986 Ford E-350 Cutaway, running a 460 cu. in. 7.5 Liter 4-Barrel Carburetor, for a 27 Foot RV that has been plagued with fuel pump and sender malfunction issues for four years. Finally, found the problem - power to the Electric Fuel Pump Relay, Passes Through the Oil Pressure Sender Unit on the Rear of the Block, and that had an Intermittent Connection. Hope this Helps.

By: schroll, david clarence.

[fishypictures]

I had a problem with rough idle then couldn’t hold an idle then wouldn’t start. My 1990 e150 has fuel injection. I was thinking fuel pump. My buddy said check the MAP sensor before you go down the fuel rabbit hole, he was right, a nice $73.00 motorcraft MAP sensor later and the van never ran better.

[jimihendrix]

I had same problum on my 1990 e350 with the 7.5ltr 460c.i.d. h/o in i replaced filter wasnt that replaced fuel pump not that either fuel presher ragulater was the problum in them the fuelpump relay under the hood on right fender berned wire's. Coused by the fuel shutoff switch berned up under passengers side dash above the kick panal so its only two wires to it in thay dont make that part any more so to over ride it in stop the problums you twist the wires togeter in wirenut them or use a conecter witch ever u prefer in its a comon problum i was told so hope it helps you out

[dannymartin]

I have a 1978 Ford Econoline E350 that is having problems like that and sounds the same when you hit the gas.. Having to use Quick Start to start it everytime. I finally found a video I can relate because going through the same issues...

[JoeClarkCinema]

Of course, right after this video, I blew a heater hose! That will get replaced tomorrow as well.

[mattiegiles]

Does this van the 1988 f350 w/ 460 engine have a fuse box under the hood, , , mine doesn’t

[jessew]

jimi do the 2 wires under good or the two under dash get put together?

[dfcvda]

should export to England, worth a bomb here, even non runners

[anthonymacdonald]

Did you end up fixing it? I have the exact same problem and found out it was the diaphragm on the fuel pump that went.
Anyways let me know what you did and if it worked.

[anthonypitre]

I have a 1989 ford e350 rv like your but i cant seem to find out where the fuse box is with the relays for fuel pump and ignition. The only one i can find is under the driver panel. Thanks

[marriedyoung]

PLEASE! Could you tell us what the reason is. This is happening to our motor home.

[markbradford]

Have an 88 f250 w the 460 tbi, dual tanks..figure yours was prolly the same setup..is there a pump in each tank, or is there one also on the frame in addition?

[mikerosen]

I'm having the same problem with my 87 econoline 5.8 I'm about to change the fuel filter. I hope that works. Also when I spray carb cleaner in the intake it seems to get the van running for a little bit IDK if that will help in telling me what the problem is. Please get back to me thank you

[joeyirock]

I had a problem with crank and no start whatsoever 1990 Ford E350 rv We changed out Fuel pump really Which is the green one Should be on the left side of your battery Not near the marine battery

[wynclark]

You need to check voltage to the pump mine is having the same problem it's electrical. Change outbpump twice before I found the problem

[parnell]

I just bought an 89 runs for apx 50 seconds then dies. Gotta crank the key a few times then usually starts back up. My guess. Fuel pump. Supposedly everything else has been replaced.

[cyberplayz]

at 25 seconds what is that little silver cylinder thing in the top left corner? Would that happen to be the inertia switch?

[nicbow]

who works on 1984 ford e350 7.5L electrical automotive?