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Dual Fuel Tanks

The rear fuel tank on my 1995 Ford F150 works only a portion of the time. Is this a problem with the fuel pump or is there a relay problem?

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PROBLY NEITHER THE VALVE THAT SWITCHES TANKS IS UNDER TRUCK PROBLY AT CROSS MEMBER.IT WILL ACT UP ALOT OF TIMES BEFORE GOING OUT.CHECK IT OUT FIRST OR REPLACE IT AFTER CHECKING FOR POWER AND TRANSFER OF VALVE CLICKING WHILE SOMEONE ELSE SWITCHES TANKS FROM SWITCH.HOPE IT HELPS YOU

Posted on Jan 04, 2009

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Posted on Jan 02, 2017

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2 Answers

1992 f-150 dual gas tanks tank closest to cab of truck pumps gas out the fuel cap


A FORD EQUIPED WITH DUAL TANKS THIS YEAR MODEL HAS CHECK VALVES IN THE FUEL PUMPS .THE FUEL RUNS FROM THE REAR TANK WHEN IT IS POWERED ON TO A TEE AND INTO THE SAME LINE AS THE FRONT PUMP . THE PROBLEM IS AT THE BOTTOM OF THE FRONT FUEL PUMP THERE IS A CHECK VALVE ON THE FOOT AND IT IS NOT WORKING.WHILE THE TRUCK IS RUNNING WITH THE REAR FUEL PUMP ON IT IS PUMPING FUEL INTO THE FRONT TANK . IT WILL RUN OUT OF THE NECK WHEN IT IS FULL.THE FIX IS SIMPLE REPLACE THE FRONT FUEL PUMP. THEY DONT MAKE A CHECK VALVE REPLACEMENT I CHECKED I HAD THE SAME PROBLEM AS YOU.

Jun 02, 2009 | 1992 Ford F150 SuperCab

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I have a 1991 Ford F150 4 x 4 inline 6 4.6L. Dual


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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.

I’m happy to assist further over the phone at https://www.6ya.com/expert/joe_a3369546f8067589

Mar 30, 2009 | 1995 Ford F150 Styleside Regular Cab

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


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Mar 28, 2009 | 1995 Ford F150 Styleside Regular Cab

2 Answers

1995 ford f150 fuel pump


Your truck is fuel injected. On the fuel delivery rail in the engine compartment there is a cap you can take off to check for fuel pressure. Hook a mechanical gage to it and check to make sure the fuel pump is working. Also if you have a dash switch to change over to the different tanks check it. Often these switches become bad and the fuel will not flow. The switches are about $ 40.00 dollars. To replace the fuel pumps you must drop the fuel tanks and remove each fuel pump from the tank. The cost for the pumps alone will be about $300.00 to $ 500.00 depending on who you purchase them from. The universals are cheaper, but the Ford pumps are an exact match and you can change them with out any problems.

Feb 08, 2009 | 1995 Ford F150 Styleside Regular Cab

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