Fuel System

Fuel System - 6.0L Diesel

The 6.0L diesel fuel system consists of the following components:

- Fuel tubes
- Fuel filter (located in the fuel conditioning module)
- Secondary fuel filter (located on the engine)
- Fuel level sensor (located in the fuel tank)
- Fuel tank filler pipe assembly
- Fuel tank
- Fuel conditioning module (located on the LH frame rail)
- Inertia Fuel Shutoff (IFS) switch (located behind the RH cowl side trim panel)

The fuel system for the direct injection turbo diesel:

- is controlled by the PCM.
- utilizes an electric, frame-mounted Fuel Pump (FP).
- incorporates a fuel filter and water separator assembly.

The electric FP:

- draws fuel from the tank.
- circulates fuel under pressure through the fuel filter, the water separator and the pressure regulator to the cylinder head fuel galleries and then to the fuel injectors.
- Excess fuel is returned to the fuel tank through the fuel return hose.


Fuel Filter/Water Separator

The diesel engine is equipped with a fuel filter and water separator assembly. Drain the water from the fuel filter at the recommended maintenance intervals. Refer to the Owner's Literature for maintenance intervals. If there is water in the fuel, an indicator on the instrument panel will alert the operator. When the indicator glows continuously while the engine is running, drain the water from the fuel filter and water separator bowl as soon as possible to prevent damage to the fuel injection system.

For exploded view information of the fuel system, refer to Fuel Tank and Filler Pipe - Exploded View or Fuel Line - 6.0L Diesel in Fuel Delivery and Air Induction.