High-Pressure Fuel Lines

HIGH-PRESSURE FUEL LINES

REMOVAL

WARNING:
- The fuel system will remain pressurized after engine shutdown. This pressure must be relieved before servicing any part of the fuel system, or personal injury or property damage can result.
- Eye protection is required when removing or installing fuel system components to avoid possible injury.

NOTE:
- Install new fuel system O-ring seals using approved O-ring seals only. O-ring seals that are approved for natural gas use are identified with a yellow stripe.
- Lubricate the fuel system O-ring seals with clean engine oil prior to installation to help seal and ease the installation.
- When tightening the fuel tubes, a torque wrench adapter must be used with the torque wrench. The use of a torque wrench adapter will alter the effective torque of the torque wrench being used. To correct the effective torque, a torque multiplication conversion must be used.

1. Carry out the Fuel System Pressure Release procedure.
2. Disconnect the battery ground cable.
3. Raise the vehicle.







4. Remove the bolts and remove the pressure regulator shield.







5. Remove the fuel tank fuel tube fitting at the "T" fitting.







6. Remove the fuel tank fuel outlet tube fitting at the "T" fitting.







7. Remove the filler valve fuel tube fitting at the rear of the filler valve.







8. Remove the bolts from the fuel tube retainers and the high pressure fuel tubes.

INSTALLATION
1. To install, reverse the removal procedure.
2. Pressurize the fuel system.
1 Turn the jack screws counterclockwise until resistance is felt.
2 Turn ignition switch to RUN position.