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How to Change a Fuel Pump on a 7 3 Power Stroke

The Power Stroke engines are a series of diesel engines that Ford manufactures for its heavy trucks. Ford made the 7.3-liter Power Stroke engine from 1995 to 2002, primarily for its line of Super Duty trucks. The engines in these vehicles use fuel injection, requiring a high-pressure fuel system to deliver fuel to the engine. The fuel pump for a 7.3-liter Power Stroke engine is on the undercarriage of the vehicle.

Instructions

1

Disconnect the cables on both negative battery terminals with a socket wrench to prevent the inadvertent discharge of fuel during the fuel pump replacement. Open the drain valve for the fuel filter with a socket wrench to relieve the fuel pressure. Replace the drain valve.

2

Raise the vehicle with a jack and support it with jack stands. Disconnect the wiring harness on the back of the fuel pump next to the frame rail.

3

Remove the retaining clip from the fuel line and detach the fuel line from the fuel pump. Disconnect the retaining clip that attaches the brake lines to the fuel pump bracket.

4

Disconnect the pinch bolt from the fuel pump bracket with a socket wrench. Push the bracket open and remove the fuel pump.

5

Place the new fuel pump in the fuel pump mounting bracket. Fasten the pinch bolt to the fuel pump mounting bracket and tighten it to 13 ft. lbs. with a torque wrench. Attach the brake lines to the mounting bracket with the retaining clip. Connect the fuel line to the fuel pump.

6

Attach the wiring harness to the fuel pump and lower the vehicle. Fasten the cables for the negative battery terminals with a socket wrench. Start the vehicle and check for leaks in the fuel system.