Fuel Pressure Regulator: Service and Repair

REMOVAL PROCEDURE




1. Relieve the fuel pressure. Refer to Fuel Pressure Release.
2. Clean any dirt from the retaining ring of the fuel pressure regulator.
3. Remove the vacuum hose from the pressure regulator.




4. Remove the snap ring (7).
5. Using a shop towel to catch any spilled fuel, lift and twist the fuel pressure regulator in order to remove the fuel pressure regulator (6) from the fuel pressure regulator housing (1).
6. Remove the small regulator O-ring (2).
7. Remove the regulator filter screen (3).
8. Remove the large regulator O-ring (4).
9. Remove the back up regulator O-ring (5).
10. Cover the fuel pressure regulator housing (1) to prevent contamination from entering the fuel system.

INSTALLATION PROCEDURE

NOTE:
^ Do not use compressed air in order to test or clean a fuel pressure regulator as damage to the fuel pressure regulator may result.
^ Clean the fuel pressure regulator filter screen with gasoline if necessary.
^ Do not immerse the fuel pressure regulator in a solvent bath in order to prevent damage to the fuel pressure regulator.




1. Install the new O-rings on the fuel pressure regulator (6), if a new fuel pressure regulator is not being installed. Lubricate the O-rings lightly with clean engine oil.
2. Install the back up regulator O-ring (5).
3. Install the large regulator O-ring (4).
4. Install the regulator filter screen (3).
5. Install the small regulator O-ring (2).
6. Install the fuel pressure regulator (6) in the fuel pressure regulator housing (1).
7. Install the snap ring (7).




8. Install the vacuum hose to the fuel pressure regulator.
9. Install the fuel injector sight shield.