I have a 1995 ford f250 and when i switch to the front tank it shuts off, and I put it back on the rear tank it runs great. Is it the relay switch or pump?

Asked by Nov 01, 2015 at 11:48 AM about the 1995 Ford F-250 2 Dr XLT Standard Cab LB

Question type: Maintenance & Repair

1 Answer

94,785

Very good question, there are 3 components that can fail and give you that problem, the switch, the pump and the switching valve, you need to check for power to and from the switch to the front fuel pump, no power to the switch could mean a bad fuel pump relay or broken wiring, then check for power out of the switch, no power out means a bad switch, then check for power at the front pump, if you have power and the pump doesn't run then drop the tank and replace the fuel pump, if no power then the switching valve cannot switch tanks, if the pump runs and the tanks don't switch then the switching valve is stuck in the rear tank position and will have to be replaced. HTH

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