Fuel Pressure Regulator: Service and Repair

FUEL PRESSURE REGULATOR REPLACEMENT

REMOVAL PROCEDURE




1. Relieve the fuel pressure. Refer to Quick Connect Fitting(s) Service (Metal Collar).
2. Clean any dirt from the fuel pressure regulator.
3. Disconnect the fuel pressure regulator vacuum line.
4. Remove the fuel pressure regulator retainer clip (7).
5. Lift and twist the fuel pressure regulator (10) in order to remove the regulator from the fuel rail. Use a shop towel in order to catch any spilled fuel.
6. Remove the regulator seal lower O-ring (8).
7. Remove the regulator assembly filter.
8. Remove the regulator seal upper O-ring (g).
9. Remove the regulator seal back-up ring.
10. Cover the fuel pressure regulator housing in order to prevent contaminates from entering the fuel system.

INSTALLATION PROCEDURE




1. Install new O-rings on the fuel pressure regulator if a new regulator is not being installed. Lubricate the O-rings lightly with clean engine oil.
2. Install the back-up ring.
3. Install the upper O-ring (9).
4. Install the filter.
5. Install the lower O-ring (8).
6. Install the fuel pressure regulator retainer clip (7).
7. Connect the fuel pressure regulator vacuum line.
8. Connect the negative battery cable.
9. Inspect for fuel leaks.
9.1. Turn ON the ignition for 2 seconds.
9.2. Turn OFF the ignition for 10 seconds.
9.3. Turn ON the ignition.
9.4. Inspect for fuel leaks.
10. Install the fuel injector sight shield.