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How to Change the Fuel Pump on a 95 Ford 7 3 Diesel

An 8-cylinder 7.3-liter diesel engine is one of the engines that Ford uses in full-size pickup trucks. This engine is most common in the F-250 3/4-ton and F-350 full-ton pickup truck. The fuel system for this engine requires the fuel pump to deliver fuel under high pressure. The fuel pump for this engine is located in the engine compartment on top of the engine. A turbocharged engine will also require you to remove the turbocharger prior to replacing the fuel pump.

Instructions

1

Disconnect the banjo bolt for the fuel line on the fuel pump with a socket wrench. Remove the fittings for the fuel line at the rear of the cylinder heads and discard the old seal rings. Release the clamps for the fuel pump lines on the front of the fuel pump and detach the fuel lines.

2

Disconnect the drain hose from the fuel filter and remove the fuel filter with a socket wrench. Loosen the retaining bolts for the fuel pump retaining bolts and pull the fuel pump from the crankcase. Discard the O-ring and disconnect the tappet of the fuel pump from the crankcase bore.

3

Connect the fuel pump tappet to the base of the new fuel pump and replace the O-ring on the fuel pump. Install the new fuel pump into the crankcase and fasten the mounting bolts with a socket wrench.

4

Install the fuel filter and fasten its mounting bolts with a socket wrench. Attach the drain hose to the fuel filter and connect the fuel lines to the front of the fuel pump. Tighten the clamps on the fuel line and install new seal rings on the rear of the fuel pump.

5

Install the fittings for the fuel lines towards the rear of the cylinder heads without tightening them. Install the banjo bolt onto the fuel pump and tighten it to 40 ft. lbs. with a torque wrench. Tighten the fittings for the fuel line with a socket wrench.