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Im not using my front fuel tank because it has a leak, just using the rear tank,but fuel is still going to front tank,please help, fuel selector switch is on rear tank ?

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  • Josh Tillette
    Josh Tillette Dec 21, 2016

    Hi Michael Marcell, I want to help you with your question, but I need more information from you. Can you please add details in the comment box? what kind of car is it

  • Michael Marcell
    Michael Marcell Dec 24, 2016

    its a 1988 ford f-150, with dual tanks

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  • Cars & Trucks Master
  • 14,585 Answers

You have 2 problems. First is, the leak, fix it. Second is the actuator / fuel solenoid on the frame is bad also. You shouldn't get fuel to the other tank when you switch from front to back.

Posted on Dec 24, 2016

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Posted on Jan 02, 2017

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1 Answer

Fuel Gas Tank Reservoir Selector Valve leaking when using front tank


The seal in the selector valve is bad on the front side.
Replace the valve or rebuild it.
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96 f-250 ex-cab the front tank isn't delivering gas to the engine & the rear tank is having trouble also. I changed the fuel pump in front tank but no help.


Fuel lines could be blocked or even partially blocked or a simple fuse. Try blowing out your fuel lines with an air hose and see if that makes a difference

Sep 07, 2017 | 1996 Ford F250 Crew Cab

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Fuel filter light comes on when change from rear tank to front tank fuel filter has been change, is there an fuel relay if is where,


I am guessing that your truck is a Diesel. There is no electric fuel pump on the diesel models. The fuel filter light comes on when there is not enough fuel pressure. Possible problems include the selector vavle not fully switching, and/or an obstruction in the pick up in the front tank.

the selector valve is located underneath the truck on the inside of the frame rail on the drivers side If I remember right. Try swtiching to the front tank and tapping the selector valve assembly. If that clears up the light then the selector valve is sticking and needs to be repaired or replaced.

Jul 23, 2011 | 1993 Ford F350

1 Answer

1997 F250 with dual fuel tanks. Fuel from the rear tank siphons into the front tank. When I try using the front tank the engine cuts out under load. Also truck wont start using the front tank


If fuel injected. the tank selector valve switches both the suction line from the tank and the return line back to the tank. It sounds like you have a stuck or bad tank selector valve if the return is not being ported back to the rear tank.

Apr 22, 2011 | Ford F-250 Cars & Trucks

1 Answer

I have a 1995 f25,the back fuel tank doesnt work and the front tank drains intp the rear..what should i do


the fuel tank switch valve is bad. It is pumping fuel to the other tank instead of the engine. There was a recall for some models in 1989-91. I think you need a selector valve, just my guess.

here is some of what it says:

Your truck is equipped with a dual fuel tank selector valve which is designed to direct fuel to the engine from one fuel tank and returns unused fuel to the same tank. It is possible that the dual fuel tank selector valve on your truck could leak internally and as a result return a portion of the unused fuel to the tank other than from which it was drawn. Should this occur when the other tank is at full capacity, fuel could flow out the filler pipe of the tank past the cap. Fuel spillage in the presence of an ignition source, presents the potential for a vehicle fire.

Dec 18, 2010 | 1995 Ford F250

2 Answers

I have a 94 f 150 the rear tank works but no fuel to the engine when you switch to the front would this be the tank selector and is it in front of side tank


Each tank has its own fuel pump. Usually its the pump that goes out. You might also notice that fuel is tranfering its self to the non-working tank which means part of the fuel return valve is going out too. Another very good reason to replace the whole fuel pump assembly and not just the pump. I mean when you go thru the effort of dropping the tank to replace the pump, might as well put all new components in so you only do it once. On my 95 F150 the side tank was the front one and the rear was centered further back

Nov 30, 2010 | 1995 Ford F150 Styleside Regular Cab

1 Answer

Gas leaking out where you fill the front tank


You probably have a defective fuel-tank selector valve. Its located on the left frame rail, halfway down. While the vehicle is running, tank"A" is pumping fuel to the engine, while tank "B" is getting the unneeded fuel that is returning from the engine. Thats why it is overflowing.

Jun 18, 2009 | 1990 Ford F150

1 Answer

Front fuel tank will not work


You have duel tanks with a fuel pump in each tank. You also have a fuel pump on the frame rail after the "tank selector". This device only holds a fuel filter that protects the main fuel pump. When you select front or rear tank on the dash, you are selecting which in tank fuel pump will operate. You can check the in tank fuel pump by listening for it to "humm" when the key is turned on..The in tank pumps only feed the main pump and cannot run the engine on their own. Hope this helps

May 16, 2009 | 1989 Ford F 150

2 Answers

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.

Mar 30, 2009 | 1995 Ford F150 Styleside Regular Cab

2 Answers

When I switch from my front fuel tank to my rear tank gas stops


There is no selector valve on a 1995 ford f150 300 engine. The selector switch on the dash sends power to the pump in the selected tank. The pump then sends fuel to the engine. If engine won't run on the selected switch, the pump in that tank needs replaced.

Mar 28, 2009 | 1995 Ford F150 Styleside Regular Cab

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