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 retaining screws from fuel pressure 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 retaining screws to 3.0-5.0 Nm (27-44 lb in).

5. Install vacuum line to regulator.

6. Turn ignition switch On/Off several times without starting engine to check for fuel leaks.