Tools Required

Important: The fuel injector is serviced as a complete assembly only. If the fuel injectors are found to be leaking, the engine oil may be contaminated with fuel.

1. Relieve the fuel pressure. Refer to the Fuel Pressure Relief .
2. Remove the fuel rail from the intake manifold. Refer to Fuel Injection Fuel Rail Assembly Replacement .



3. Remove the fuel injector assembly.
4. Remove the fuel injector upper O-ring (3).
5. Remove the fuel injector lower O-ring (2).
6. Discard the injector O-ring seals.

Important: Each fuel injector is calibrated for a specific flow rate. Be sure to use the correct part number when ordering replacement fuel injectors.

The fuel injector assembly is stamped with a part number identification (2), a manufacturing date (3), a week code (1), and a production plant number (4).

1. Lubricate the new upper (3) and lower (2) O-rings with clean engine oil.
2. Install the new upper and lower injector O-rings on the fuel injector.



3. Install the fuel injector (2) on to fuel rail.



4. Install the fuel rail assembly. Refer to Fuel Injection Fuel Rail Assembly Replacement .
5. Tighten the fuel filler cap.
6. Install the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.
7. Inspect for leaks.

7.1.	Turn ignition ON for 2 seconds.

7.2.	Turn the ignition OFF for 10 seconds.

7.3.	Turn the ignition ON.

7.4.	Inspect for fuel leaks.




8. Install the intake manifold sight shield (1) to the engine.

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

9. Install the intake manifold sight shield nuts (2).

Tighten
Tighten the nuts to 3 N·m (27 lb in).

10. Install the rear seat cushion. Refer to Rear Seat Cushion Replacement in Seats.