Fuel Pressure Regulator: Service and Repair

REMOVAL

1. Release pressure from fuel system by cranking the engine for a minimum of 15 seconds with the electrical connector at the Inertia Switch disconnected, or by using a fuel pressure gauge.
2. Remove fuel cap.
3. Disconnect battery ground cable and secure it out of the way.
4. Remove vacuum line at pressure regulator.
5. Remove three retaining screws from regulator housing and discard.
6. Remove pressure regulator assembly, gasket and O-ring.
7. Be careful not to damage fuel pressure regulator or fuel supply line gasket surfaces.

INSTALLATION

1. Lubricate new fuel pressure regulator O-ring with engine oil.
NOTE: Never use silicone grease. It will clog the injectors.
2. Ensure gasket surfaces of fuel pressure regulator and fuel rail assembly are clean.
3. Install new O-ring and new gasket on regulator.
4. Using new retaining screws install fuel pressure regulator on fuel rail assembly. Tighten to 27-40 in lb (3.0-4.5 Nm).
5. Install vacuum line to regulator.
6. Connect battery ground cable.
7. Add engine coolant if required.
8. Turn ignition switch ON/OFF several times without starting engine to check for fuel leaks.
NOTE: Check all connections at fuel rails, push connect fittings, etc.