1997 Ford F250 gas with dual tanks

Asked by jandj Apr 27, 2011 at 04:44 PM about the 1997 Ford F-250 2 Dr XL Extended Cab SB HD

Question type: Maintenance & Repair

I have a 97 F250 big block gas engine with two tanks. It will not run off the front tank but when you move the switch on the dash the gauge works fine. Also, it seems like fuel is being pushed from the rear tank to the front tank as it runs out the filler cap and is under pressure. I cannot hear the front fuel pump run even when you cycle the key. Is there a switching valve in the system or is the problem with the fuel pump assembly?

4 Answers

papa answered 13 years ago

probly the FP.fuel will run into the tank,is a overflowline going from tank to tank.is a safty feature on newer duel tank trucks.

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GuruDYM8X answered 7 years ago

I have a 1997 f250 with dual tanks the front fuel pump went out can take out the front fuel tank and bypass the fuel lines so they do not leak

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Frankie1961 answered 4 years ago

my truck is siphoning gas from the front tank to the back tank. Luckily both pumps are working. I start by filling the front tank and run until almost empty then switch to the back tank. A little goes back to the front tank. There's got to be a valve in there somewhere that is malfunctioning. Was wondering if anybody knew what or where it is?

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Guru9XWRBL answered 3 years ago

I have a 1997 F-250 HD with dual tanks and it has 326, 800 miles I replaced both engine and trans. with 221,000 miles and the replaced the from tank gauge a while back and it runs like it brand new and got some bad gas yesterday in Williamsburg, Va. and I am checking to see if it is either water in gas or my pump in tack has go out and it has never been replace. Clinton Davis Staunton, Va.

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