Fuel Conditioning Module

Fuel Conditioning Module - 6.4L Diesel

Removal and Installation

WARNING: When handling fuel, always observe fuel handling precautions and be prepared in the event of fuel spillage. Spilled fuel may be ignited by hot vehicle components or other ignition sources. Failure to follow these instructions may result in serious personal injury.

1. Release the fuel system pressure. For additional information, refer to Fuel Delivery and Air Induction.

2. NOTE: Once the fuel conditioning module is drained and the fuel system service is completed, make sure the fuel/water separator drain valve is completely closed to prevent air from entering into the fuel system.

Open the fuel/water separator drain valve and drain the fuel into a suitable container.





3. Disconnect the Fuel Pump (FP) and the water in fuel sensor electrical connectors.





4. Disconnect the fuel tank-to-fuel conditioning module fuel supply tube and fuel conditioning module-to-fuel tank fuel return tube quick connect coupling. For additional information, refer to Fuel Delivery and Air Induction.

5. Disconnect the fuel tank-to-fuel conditioning module-to-engine fuel supply tube and engine-to-fuel conditioning module fuel return tube spring lock coupling. For additional information, refer to Fuel Delivery and Air Induction.

6. Remove the 3 mounting nuts and the fuel conditioning module.
- To install, tighten to 20 Nm (177 lb-in).

7. NOTICE: Only use a fuel conditioning module that has a brown cover on the Fuel Pump (FP) (low-pressure FP). Installing a fuel conditioning module with a black cover on the FP (high-pressure FP) may result in damage to the high-pressure fuel system.

To install, reverse the removal procedure.