Fuel Hose/Pipes Replacement - Chassis (Cab/Chassis)

Fuel Hose/Pipes Replacement - Chassis (Cab/Chassis)

Removal Procedure

1. Disconnect the fuel feed and return lines.
2. Remove the fuel line bracket nut.
3. Remove the fuel line bracket from the stud.
4. Raise and suitably support the vehicle. Refer to Vehicle Lifting.

5. Remove the fuel bundle clips (2) from the transmission brackets (1).
6. Disconnect the chassis harness from the retaining clips.
7. Remove the fuel system cooler, if necessary.

8. Disconnect the fuel feed and return lines from the fuel tank lines.

9. Remove the fuel bundle nuts from the chassis.

10. Loosen the electronic brake control module (EBCM) bracket bolts (4).
11. Allow the EBCM to remain loose in order to allow fuel pipe clearance.
12. Remove the fuel bundle using the following procedure:

1. Guide the fuel bundle pipes towards the rear of vehicle to clear the engine.
2. Lower the fuel bundle while moving it foreword and out.

Installation Procedure

1. Install the fuel pipe bundle using the following procedure:

1. Install the fuel bundle to the chassis by guiding the pipes towards the rear of vehicle.
2. Lift the fuel pipes, while guiding the forward portion of the pipes up towards the engine connections.

Notice: Refer to Fastener Notice.

2. Install the fuel bundle nuts to the chassis.

Tighten the nuts to 16 N.m (12 lb ft).

3. Connect the fuel feed and return lines to the fuel tank lines.
4. Install the fuel system cooler, if necessary.

5. Connect the fuel bundle clips (2) to the transmission brackets (1).

6. Tighten the EBCM bracket bolts (4).

Tighten the bolts to 25 N.m (18 lb ft).

7. Lower the vehicle.

8. Install the fuel line bracket to the stud.
9. Install the fuel line bracket nut.

Tighten the nut to 16 N.m (12 lb ft).

10. Connect the fuel feed and return lines.
11. Prime the fuel system. Refer to Fuel System Priming.
12. Start the engine. If the engine stalls, repeat the above step.
13. Once the engine starts, inspect for fuel leaks.