Mechanics

F150 FUEL PUMPING FROM ONE TANK TO ANOTHER

1990 Ford F-150

Engine Performance problem
1990 Ford F150 V8 Two Wheel Drive Automatic 189000 miles

i have a truck with duel tanks when I am swithed to the rear tank it pumps into the front tank and overflows from the fill tube, I read there is a bad check valve, is this valve located in the line or do I have to replace the fuel pump in the front tank?
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Mattemt
March 7, 2009.




The valve's in the pump but Fords " fix" was to " add" one in the line(I think). I've not done one myself but it's common - ask around 'till you find someone familiar with this - this forum should be a good place. There was a TSB at one time, I think. An older parts guy at the Ford dealer may help.

Tiny
(help)
Mar 7, 2009.


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