Fuel Pressure Regulator: Service and Repair

Removal Procedure

1. Relieve fuel system pressure.

Refer to Fuel Pressure Relief Procedure.

2. Remove the negative battery cable.

3. Remove the pressure regulator vacuum hose.

4. Remove the pressure regulator attaching screw (1).

5. Remove the pressure regulator assembly (2) and O-ring (3) (discard O-ring).

Important: If the fuel pressure regulator is to be reinstalled, inspect filter screen for contamination. If contaminated, remove and discard.


Installation Procedure

1. Lubricate new pressure regulator O-ring (3) with clean engine oil, then install on pressure regulator.

2. Install the pressure regulator assembly (2) onto the fuel rail (4).

3. Install the pressure regulator attaching screw (1) coated with appropriate thread locking material.

- Tighten the pressure regulator attaching screw to 12 N.m (106 lbs. in).

4. Connect the negative battery cable.

5. Inspect for leaks through the following procedure:

5.1. Turn the ignition switch to the ON position for 2 seconds.

5.2. Turn the ignition switch to the OFF position for 10 seconds.

5.3. Turn the ignition switch to the ON position.

5.4. Check for fuel leaks.