Tools Required

Notice: Use care in removing the fuel injectors in order to prevent damage to the fuel injector electrical connector pins or the fuel injector nozzles. Do not immerse the fuel injector in any type of cleaner. The fuel injector is an electrical component and may be damaged by this cleaning method.

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 injector electrical connector (1) from the fuel injector (2).

Important: It may be necessary to remove the fuel rail from the intake manifold to allow increased fuel rail movement for injector access. Refer to Fuel Rail Assembly Replacement.




3. Remove the bolts from the fuel rail.
4. Raise the fuel injectors from the intake manifold with J 43013 .

Important: Store the fuel rail assembly in a clean secure location away from heat sources.

5. Lift the fuel rail and remove the fuel rail.




Important: It may be necessary to release the adjacent injector(s) from the intake manifold to allow increased fuel rail movement for injector access.

6. Spread the injector retainer clip (1) to release injector from fuel rail (3).



7. Remove the fuel injector assembly.
8. Remove the fuel injector upper O-ring (3).
9. Remove the fuel injector lower O-ring (2).
10. Discard the injector O-ring seals.

Caution: In order to reduce the risk of fire and personal injury that may result from a fuel leak, always install the fuel injector O-rings in the proper position. If the upper and lower O-rings are different colors (black and brown), be sure to install the black O-ring in the upper position and the brown O-ring in the lower position on the fuel injector. The O-rings are the same size but are made of different materials.

Important: Fuel injector O-rings should always be replaced whenever fuel injectors are serviced.

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 rail assembly on to the intake manifold until the fuel injectors are fully seated.
4. Spread the injector retainer clip (1) to install injector to the fuel rail (3).

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.

5. Install the bolts to the fuel rail assembly.

Tighten
Tighten the to bolts to 10 N·m (88 lb in).




6. Snap the fuel rail down on to intake manifold.
7. Install the fuel injector electrical connector (1) to the fuel injector (2).
8. Add fuel to the fuel tank.
9. Tighten the fuel filler cap.

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.

10. Install the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection in Engine Electrical.

10.1.

Turn ON the ignition to position for 2 seconds.

10.2.

Turn OFF the ignition for 10 seconds.

10.3.

Turn ON the ignition.

10.4.

Check for fuel leaks.




11. Install the fuel injector sight shield (1) to the engine.
12. Install the fuel injector sight shield nuts (2).

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