Fuel Pump: Service and Repair

WARNING: The fuel system is under constant pressure, even when the engine is OFF. Always release fuel pressure before servicing any fuel system component.

REMOVAL

1. Release fuel system pressure.

Removing Fuel Pump:

2. Remove fuel tank.
3. Using a brass drift punch and hammer, gently tap lock ring counterclockwise, to release pump. Lift fuel pump out of tank and discard fuel pump O-ring, pump inlet filter, and inlet seal.

In Tank Filter Replacement:

INSTALLATION

1. Wipe seal area of tank clean, and install a new O-ring seal, inlet seal, and filter on pump.
2. Install pump into tank opening.
3. Install fuel pump locking ring.
4. Using the brass drift and hammer tap lock ring clockwise to lock fuel pump into tank.

NOTE: ASD and fuel pump relays remain energized for 7 minutes during the following test, unless the test is stopped or the ignition switch is turned to the OFF position.

5. Using scan tool, place ignition switch in "RUN" position and use Actuate Output Test "Auto Shutdown (ASD) Relay", to activate fuel pump and pressurize system.
6. Check for leaks.