Tool Required

J 34730-1A Fuel Pressure Gauge

Caution: Unless directed otherwise, the ignition and start switch must be in the OFF or LOCK position, and all electrical loads must be OFF before servicing any electrical component. Disconnect the negative battery cable to prevent an electrical spark should a tool or equipment come in contact with an exposed electrical terminal. Failure to follow these precautions may result in personal injury and/or damage to the vehicle or its components.

1. Disconnect the negative battery cable.
2. Remove the engine sight shield.
3. Relieve the fuel system pressure. Refer to the Fuel Pressure Relief Procedure .



4. Disconnect the fuel pressure regulator vacuum line.
5. Clean any dirt from the fuel pressure regulator retainer and the surrounding area.
6. Remove the fuel pressure regulator retainer (8).
7. Remove the fuel pressure regulator (9) from the fuel pressure regulator housing.

1. Install the backup ring (10) on the fuel pressure regulator (9).
2. Install the new large O-ring (11) on the fuel pressure regulator (9).
3. Install the regulator filter (12) on the fuel pressure regulator (9).
4. Install the new small O-ring (13) on the fuel pressure regulator (9).
5. Lubricate the fuel pressure regulator large O-ring (11) and the small O-ring (13) with clean engine oil.
6. Push the fuel pressure regulator into the regulator housing on the fuel rail.
7. Install a new fuel pressure regulator retainer (8).
8. Connect the fuel pressure regulator vacuum line.



9. Connect the negative battery cable.
10. Tighten the fuel filler cap.
11. Inspect for leaks.

11.1.

Turn the ignition switch ON for 2 seconds.

11.2.

Turn the ignition switch OFF for 10 seconds.

11.3.

Turn the ignition switch ON.

11.4.

Check for fuel leaks.

12. Install the engine sight shield.