Fuel Filter: Service and Repair

Fuel Filter Replacement

Removal Procedure

1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief Procedures.
2. Raise the vehicle. Refer to Lifting and Jacking the Vehicle Service and Repair in General Information.




3. Remove the fuel feed and return pipes (1, 2) at the filter.




4. Remove the fuel filter clamp (4) from the filter (3).

Important: If the fuel filter is plugged, inspect the fuel tank internally and clean if necessary. Refer to Fuel System Cleaning Service and Repair.


5. Inspect the fuel filter.

Installation Procedure

1. Remove the protective caps from the new filter.




2. Install the fuel filter clamp (4) on to the fuel filter (3).
3. Install the fuel filter retaining bolts (1) with flat washers (2) through the frame rail and fuel filter clamp (4).

Notice: Refer to Fastener Notice in Cautions and Notices.

4. Install the flat washers (5) and nuts (6) while aligning the fuel filter.

Tighten the retaining nuts to 22.5 Nm (17 lb ft).




5. Install the fuel feed and return pipes (1, 2) to the fuel filter.

Tighten the fuel pipe nuts to 27 Nm (20 lb ft).

6. Lower the vehicle. Refer to Lifting and Jacking the Vehicle Service and Repair in General Information.
7. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection (C 6/7/8) Battery Negative Cable Disconnection and Connection (C 6/7/8) in Engine Electrical.
8. Inspect for fuel leaks using the following procedure:

1. Turn ON the ignition, with the engine OFF for 2 seconds.
2. Turn OFF the ignition for 10 seconds.
3. Turn ON the ignition, with the engine OFF.
4. Inspect for fuel leaks.