Fuel Tank Unit: Description and Operation

The fuel pump module on all gas powered engines is installed in the top of the fuel tank. The fuel pump module contains:
- A combination fuel filter/fuel pressure regulator
- Electric fuel pump
- Fuel pump reservoir
- A separate in-tank fuel filter
- Fuel gauge sending unit
- Fuel supply line connection at filter/regulator
- A plastic threaded locknut to retain pump module to fuel tank
- A gasket between tank flange and module

The fuel gauge sending unit (fuel level sensor), and pick-up filter (at bottom of module) may be serviced separately. If the electrical fuel pump requires service, the entire fuel pump module must be replaced. The fuel filter/fuel pressure regulator may be serviced separately.