Fuel Pressure Regulator: Service and Repair

Fuel Pressure Regulator:

Warning: The fuel system is under constant pressure, even when the engine is OFF. Always release fuel pressure before servicing any fuel system component.

Removal

1. Release fuel system pressure. Service and Repair
2. Remove the fuel rail.
3. Remove 2 attaching bolts and remove fuel pressure regulator from fuel rail. Inspect O-ring for damage or wear and replace if necessary.
4. Loosen and remove fuel return hose.

Installation

1. Lube fuel pressure O-ring with clean engine oil prior to installation. Press regulator into fuel rail, attach 2 mounting bolts and torque to 8.7 Nm (77 lb-in).
2. Install fuel return hose and torque to 1 Nm (10 lb-in).

Note: ASD and fuel pump relays remain energized for 7 minutes during the following test, unless the test is stopped or the ignition switch is turned to the OFF position.

5. Using scan tool, place ignition switch in "RUN" position and use Actuate Output Test "Auto Shutdown (ASD) Relay", to activate fuel pump and pressurize system.
6. Check for leaks.