Water In Fuel Sensor: Service and Repair

Water-In-Fuel Sensor - 6.7L Diesel













WARNING: Do not smoke, carry lighted tobacco or have an open flame of any type when working on or near any fuel-related component. Highly flammable mixtures are always present and may be ignited. Failure to follow these instructions may result in serious personal injury.

WARNING: Do not carry personal electronic devices such as cell phones, pagers or audio equipment of any type when working on or near any fuel-related component. Highly flammable mixtures are always present and may be ignited. Failure to follow these instructions may result in serious personal injury.

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. With the vehicle in NEUTRAL, position it on a hoist. For additional information, refer to Jacking and Lifting Service and Repair.

2. Release the fuel system pressure. For additional information, refer to Fuel System - General Information - Gasoline and Diesel Fuel System Pressure Release.

3. Disconnect the battery ground cable. For additional information, refer to Battery, Mounting and Cables Battery Disconnect / Connect.

4. Disconnect the water in fuel sensor electrical connector.

5. NOTE: When the water-in-fuel sensor is removed, fuel can continue to drain from the fuel conditioning module until the sensor is installed.

Remove the water-in-fuel sensor.

- Tighten to 5 Nm (44 lb-in).

6. To install, reverse the removal procedure.
- Lubricate the water-in-fuel sensor O-ring with clean motor oil.