GM Service Manual Online
For 1990-2009 cars only

Removal Procedure


    Object Number: 260101  Size: SH

    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. Object Number: 376389  Size: MH

    Notice: 

       • Remove the fuel pressure regulator in order to drain the excess fuel and in order to prevent fuel from entering the engine cylinders when the fuel injectors are removed for service. Flooded cylinders could result in engine damage.
       • Use care in removing the fuel injectors in order to prevent damage to the electrical connector pins on the injector and the nozzle. The fuel injector is serviced as a complete assembly only. Do not immerse the injector in a solvent bath.

  4. Relieve the fuel system pressure. Refer to Fuel Pressure Relief .
  5. Remove the fuel rail assembly. Refer to Fuel Injection Fuel Rail Assembly Replacement .

  6. Object Number: 350543  Size: SH
  7. Remove the injector retainer clip (19).
  8. Insert the fork of J 43013 fuel injector assembly removal tool behind the injector connector between the fuel rail pod and the 3 protruding retaining clip ledges. Use a prying motion while inserting the tool in order to force the injector out of the fuel rail pod.

  9. Object Number: 351185  Size: SH
  10. Discard the injector retainer clip (1).
  11. Remove the injector O-ring seals (2), (4) from both ends of the injector. Discard the O-ring seals.

Installation Procedure


Object Number: 351196  Size: SH

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

The fuel injector assembly (1) is stamped with a part number identification (2). A four digit build date code (3) indicates the month (4), day (5), year (6), and the shift (7) that built the injector.


    Object Number: 351185  Size: SH
  1. Lubricate the new injector O-ring seals (2), (4) with clean engine oil.
  2. Install the new injector O-ring seals on the injector.
  3. Install a new retainer clip (1) on the injector.

  4. Object Number: 350543  Size: SH
  5. Push the fuel injector (17) into the fuel rail injector socket with the electrical connector facing outward. The retainer clip (19) locks on to a flange on the fuel rail injector socket.

  6. Object Number: 376389  Size: MH
  7. Install the fuel rail assembly. Refer to Fuel Injection Fuel Rail Assembly Replacement .
  8. Tighten the fuel filler cap.
  9. Connect the negative battery cable.
  10. Inspect for leaks.
  11. 8.1. Turn the ignition ON for 2 seconds.
    8.2. Turn the ignition OFF for 10 seconds.
    8.3. Turn the ignition ON.
    8.4. Inspect for fuel leaks.

    Object Number: 260101  Size: SH

    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.

  12. Install the engine sight shield.
  13. Tighten
    Tighten the engine sight shield bolts to 10 N·m (89 lb in)