Fuel Pump Module - Description

DESCRIPTION





This vehicle uses a saddle type tank that has a reservoir on both sides of the drive shaft. The auxiliary fuel pump module assembly (1) is located on the right side top of fuel tank. The main fuel pump module (2) is located on the left side top of fuel tank. The fuel supply fitting (3) is located on top of the main fuel pump module.

MAIN FUEL PUMP MODULE





The main fuel pump module assembly contains the following components:

- An internal fuel filter
- A separate fuel pick-up, or inlet filter
- A fuel pressure regulator
- Fuel supply fitting (1)
- An electric fuel pump (2)
- A lock-ring to retain pump module to tank
- A soft gasket between tank flange and module
- A fuel gauge sending unit (fuel level sensor) (3)
- Auxiliary fuel pump module supply line connection (4)

If the electrical fuel pump, primary inlet fuel filter, internal fuel filter, or fuel pressure regulator require service, the fuel pump module must be replaced as an assembly.

Electric Fuel Pump

The electric fuel pump is located inside of the main fuel pump module. A 12 volt, permanent magnet, electric motor powers the fuel pump. The electric fuel pump is not a separate, serviceable component.

Fuel Filters

Two fuel filters are used, the first one is located at the bottom of the fuel pump module. The second fuel filter is located inside the fuel pump module. A separate frame mounted fuel filter is not used with any engine.

Both fuel filters are designed for extended service. They do not require normal scheduled maintenance. The fuel filters are not a separate, serviceable component.

Fuel Pressure Regulator

The fuel pressure regulator is located within the fuel pump module.

Fuel Gauge Sending Unit (Fuel level sensor)

The fuel gauge sending unit (fuel level sensor) is attached to the side of the fuel pump module. The sending unit consists of a float, an arm, and a variable resistor track (card) and should only be replaced if a diagnostic procedure indicates to do so.

AUXILIARY FUEL PUMP MODULE





The auxiliary fuel pump module assembly contains the following components:

- An internal inlet fuel filter
- A separate fuel pick-up
- A lock-ring to retain pump module to tank
- A soft gasket between tank flange and module
- Auxiliary fuel pump module supply line connection (1)
- A fuel gauge sending unit (fuel level sensor) (2)

If the fuel gauge sending unit or internal inlet fuel filter require service, the auxiliary fuel pump module must be replaced as an assembly.