Fuel Pressure Regulator - Coolant Bowl
FUEL PRESSURE REGULATOR - COOLANT BOWLWARNING:
- 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 Pressure Relief - Fuel System procedure.
2. Disconnect the battery ground cable.
3. Raise the vehicle.
4. Remove the bolts and the fuel pressure regulator shield.
5. Remove the pressure regulator/filter assembly connections.
1 Remove the coolant tubes and the low pressure fuel tube.
2 Remove the high pressure fuel tube and the filter-to-regulator fitting.
6. Remove the three bolts securing the pressure regulator/filter assembly to the frame rail and remove the assembly.
7. Remove the bolts and the fuel pressure regulator.
8. Remove the screw from the fuel pressure regulator coolant bowl.
9. Remove the coolant bowl.
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 the ignition switch to the RUN position.