Question about 1990 Ford F150

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Fuel shuttle valve replacement for dual fuel tanks shuttle valve seems to be bypassing and both tanks pressurizing with one overfilling with fuel returning from injectors location and description of shuttle valve as i don't know what i'm looking for thanks

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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emissionwiz
  • 76846 Answers

SOURCE: fuel tank selector valve

Black plastic with round screw off bottom with lots of line's coming in and going out, it is on the inside frame rail just behind driver.

Posted on Mar 30, 2009

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Monster80
  • 460 Answers

SOURCE: where is the fuel tank selector valve exactly located

Just in front of the side tank is the selector.Very common problem.The rear fuel tanks pump quits.

Posted on Mar 30, 2009

DIESELMUDDER
  • 2760 Answers

SOURCE: injector control pressure sensor circuit low

I can't remember that year exactly so help me out it's been a while
is that a IDI diesel that has a injector pump sitting in top center front of engine (has all the fuel lines running off it) or is it a Direct inject engine that has the injectors all comming off a central fuel rail

IDI diesel = sensor is on pump front lower under cold throttle kicker coil

direct inject= sensor is on driver side at end of fuel rail toward fire wall

Posted on Apr 07, 2009

Healeyman
  • 1198 Answers

SOURCE: dual tank no fuel/1989 F250

The metal fuel line on top of my 89 Ranger fuel tank rusted out. What a pain. For all the trouble of dropping the tank and wrestling with the fuel assembly, definately put in new stuff, don't try to fix anything with jb weld like I did. It's a shame the body bolts are such a bear, or I'd say to try to remove the bed for a good look-see. After all was said and done, I cut a trouble door in my bed so I could replace the filler hose if I ever get one. Just don't do any cutting while the fuel tank is there, even with a saw or grinder, they all spark!

Posted on Apr 26, 2009

  • 64 Answers

SOURCE: location of a fuel pump relay on a1993 f150 with

should be under the hood, either in the main fuse block or in a seperate fuse block with two other relays in it.

Posted on Jul 22, 2009

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1 Answer

When i use the front fuel tank the rear tank over flows after a short time.


You did not post what vehicle this is on, if this engine is fuel injected, the un-used fuel is returned to the tank from the fuel rail. Since the return line goes to only one tank, it is overfilling that tank, if the fuel control was modified to accept another tank then the valves have to be changed to accommodate dual flow to the active tank.

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You will need a new one but I would run the fault codes first and it may be the purge valve or canister solenoid that is faulty cheaper to check than replace something that may not need replacing

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I have no gas running to the engine from the front tank, and apparently have gas filling into the front tank from the rear tank. I can only use the rear tank. The switch is set for the rear tank and when I...


Hi:
I have had the exact problem on my ford truck, and fixed it. There is a tank feed shuttle valve mounted to the drivers side frame rail that is the most likely suspect. It operates by fuel pressure and when it fails, it fails so the front tank doesnt work.

It is worth mentioning that there are three fuel pumps on your truck, each fuel tank has a small low pressure pump inside the tank, and there is a high pressure pump located on the drivers side frame rail too, just before the fuel filter.

The front in the tank pump could be bad, too, but most likely the shuttle valve is the problem.

Oct 13, 2010 | Ford F-150 Cars & Trucks

1 Answer

Where is the fuel transfer valve on a dual tank 1993 Ford F150 located?


From what I can find out Ford did not use a fuel transfer valve in 1992. They ran both pumps to a common fuel line and used one way check valves to keep one pump from filling the other tank while keeping the entire fuel system pressurized. Your tank selector switch is actually switching pumps off and on, not a transfer valve. The problem Ford had was the one way valves failing causing one of the tanks to overflow. They have an external one way valve kit to solve this problem, but the valves are about $85.00 each.

May 21, 2010 | 1991 Ford F150

1 Answer

I have a 1991 ford f-150 xlt.I put a used battery in truck and let it charge up.It ran aprx 30mins and it ran out of gas. Put gas in it and tried to start it and now it will not start.Both fuel pumps are...


If you have dual tanks, like I have, the there is a mechanical fuel selector valve that both tanks hook to. When it fails, it usually fails so you can't get fuel out of the front tank. If you haven't tried yet, put some fuel in the back tank and give it a try. If the truck runs again, you need to swap out the shuttle valve.

Oct 30, 2009 | 1991 Ford F150

2 Answers

1987 f-150 dual tanks fuel problem


You are right. There are three pumps. It sounds like the transfer pump in the front tank is bad. The in tank pumps just supply the high pressure pump to keep it primed. You need the front pump.

Sep 21, 2009 | 1987 Ford F 150

2 Answers

Fuel useage from forward tank causes engine lugging


replace your forward in-tank fuel filter

May 22, 2009 | 1993 Ford F250

1 Answer

1990 ford f150 cross over valve location


Please Help ME by Remembering to RATE ME Thank you Vrey Much !!!

This vehicle does not use an external fuel tank switching valve. A supply check valve in the fuel pump assembly opens when the outlet pressure from the energized fuel pump exceeds the opposing check valve spring force.


R E C A L L 1991
THE DUAL FUEL TANK SELECTOR VALVE MAY MALFUNCTION AND CAUSE AN OVERFILL CONDITION IN ONE OF THE FUEL TANKS, RESULTING IN AN OVERFLOW OF FUEL PAST THE FILLER CAP.
THE OVERFLOW OF FUEL PAST THE FILLER CAP CAUSES A FUEL LEAKAGE, WHICH CAN RESULT IN A FIRE WHEN EXPOSED TO A SOURCE OF IGNITION.
REPLACE THE DUAL FUEL TANK SELECTOR VALVE.
SYSTEM: FUEL TANK, AUXILIARY.
VANS AND LIGHT TRUCKS WITH DUAL FUEL TANKS PRODUCED IN THE FOLLOWING PERIODS: F150, F250, AND F350 LIGHT TRUCKS BUILT BETWEEN FEBRUARY 28, 1989 AND JULY, 1989; ECONOLINE BUILT BETWEEN FEBRUARY 28, 1989 AND FEBRUARY 11, 1991.
NOTE: FORD HAS AGREED TO RECALL THESE VEHICLES BUT PARTS ARE NOT YET AVAILABLE.PARTS WILL BE AVAILABLE IN DECEMBER 1991. YOU WILL RECEIVE A LETTER FROM FORD ADVISING YOU WHEN TO SCHEDULE AN APPOINTMENT WITH YOUR DEALER TO HAVE THE RECALL WORK PERFORMED. IN THE MEAN TIME, YOU CAN TAKE THE FOLLOWING PRECAUTIONS:FILL EACH TANK TO ONLY 1/3 FULL. IF YOUR VEHICLE LEAKS FUEL OR IF YOU SMELL FUEL, STOP USING THE VEHICLE AND CALL FORD AT (313) 446-4654 AND ADVISE THEM OF YOUR PROBLEM. REFER TO FORD SAFETY RECALL NUMBER 91S39. AN OPERATOR WILL TAKE YOUR NAME AND TELEPHONE NUMBER. A FORD REPRESENTATIVE WILL CALL YOU BACK

Jan 21, 2009 | 1990 Ford F150

1 Answer

I have a 1988 F-150 p/u with dual tanks.fuel gauge on both tanks do not work. one reads below empty all the time the other reads above full all the time.


i have the same problem and i replaced the shuttle valve and i fixed the problem it is located on the drivers side frame rail just behind the the main high pressure fuel pump it should have 6 lines going into it and out it is a mechanical part so its not repairiable hope this helps

Jul 20, 2008 | 1988 Ford F 150

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