Fuel Pressure Regulator: Service and Repair

REMOVE OR DISCONNECT:

1. Relieve fuel system pressure.

^ Refer to "FUEL PRESSURE RELIEF PROCEDURE."

2. Negative battery cable.

3. Vacuum hose from regulator.

4. Fuel return pipe clamp.

5. Fuel return pipe and O-ring from regulator. Discard O-ring.

6. Pressure regulator bracket attaching screw.

7. Pressure regulator assembly and O-ring.

^ Discard O-ring.

INSTALL OR CONNECT:

1. Lubricate new pressure regulator O-ring with clean engine oil, then install on pressure regulator.

2. Pressure regulator assembly onto manifold.

3. Pressure regulator bracket attaching screw coated with appropriate thread-locking material.

TIGHTEN:

^ Pressure regulator bracket attaching screw to 3.5 N-m (31 lbs. in.)

4. Vacuum hose to regulator.

5. Lubricate new fuel return pipe O-ring with clean engine oil, then install on end of pipe.

TIGHTEN:

6. Fuel return pipe to pressure regulator.

7. Fuel return pipe clamp attaching nut to lower manifold assembly.

8. Fuel filler cap.

INSPECT:

9. Negative battery cable. Turn ignition switch to the "ON" position for two seconds, then turn to the "OFF" position for ten seconds. Again turn to the "ON" position, and check for fuel leaks.