Question about Ford F-150

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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 switch to the front, the engine bogs and conks out. I have a haynes manual but is not very visual or helpful in solving this problem........Some one please help!!

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  • Ford Master
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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.

Posted on Oct 13, 2010

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Posted on Jan 02, 2017

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