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.

1. Disconnect the negative battery cable. Refer to

   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.

   in Caution and Notices.
2. Relieve fuel system pressure. Refer to Fuel Pressure Relief .
3. Remove the intake manifold plenum. Refer to Intake Manifold Removal in Engine Mechanical.
4. Disconnect the fuel rail assembly. Refer to Fuel Injection Fuel Rail Assembly Replacement .

1. Disconnect the electrical wiring harness.
2. Remove the injector retainer clip (1) and discard.
3. Remove the fuel injector assembly (3).

Important: When ordering new fuel injectors, be sure to order the correct injector for the application being serviced.

4. Remove the injector O-ring seals (2), (5), from both ends of injector and discard. Save the O-ring backups (4) for use on reassembly.

1. Ensure that O-ring backup (4) is on the injector before installing new O-rings. Lubricate the new injector O-ring seals with clean engine oil and install on the injector assembly.
2. Install the fuel injector assembly (3) into the fuel rail injector socket with the electrical connectors facing outward.
3. Install the new injector retainer clips (1) on the injector fuel rail assembly by sliding the clip into the injector groove as it snaps onto the composite fuel rail.

1. Install the fuel rail assembly. Refer to Fuel Injection Fuel Rail Assembly Replacement in Engine Controls.
2. Install the intake manifold plenum. Refer to Intake Manifold Installation Engine Mechanical.