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Old 03-22-2009, 10:41   #1 (permalink)
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Fuel pump question 1988 F-350 7.5 EFI

I had to replace the original frame mounted fuel pump on this 1 ton dump truck and it seems like this pump runs all of the time. My fuel mileage dropped and it seems to idle rough. Now the relays/wiring are acting up also, should I replace both relays or???
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