Fuel Pressure Regulator: Service and Repair

Fuel Pressure Regulator:

REMOVAL

1. Release fuel pressure from fuel system.
2. Remove vacuum line at pressure regulator.
3. Remove three retaining screws from regulator housing.
4. Remove pressure regulator assembly, gasket and o-ring. Inspect o-ring for signs of cracking or deterioration.
5. If scraping is necessary, be careful not to damage fuel pressure regulator or fuel supply line gasket surfaces.




INSTALLATION

1. Lubricate fuel pressure regulator o-ring with light oil.
CAUTION: Never use silicone grease. It will clog the injectors.
2. Ensure gasket surfaces of fuel pressure regulator and fuel injector manifold are clean.
3. Install o-ring and new gasket on regulator.
4. Install fuel pressure regulator on injector manifold. Tighten three retaining screws. Refer to SPECIFICATIONS.
5. Install vacuum line to regulator.
6. Add coolant, if it was removed.
7. Turn ignition switch on/off several times without starting engine to check for fuel leaks.