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Home >> Chevrolet >> 2012 >> Camaro LS, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls/Fuel - 3.6L - Repair Instructions >> Repair Instructions >> Fuel Injector Replacement >> Installation Procedure
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Installation Procedure

    Fig 1: Direct Fuel Injector & Components
    GM2159849Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Discard the fuel injector (4) if the fuel injector is damaged.

  1. Remove and discard the following components from the fuel injectors:
    • Upper O-ring Seal (1)
    • Plastic Spacer (2)
    • Retaining Ring (3)
      • NOTE:

      Use a suitable tool to cut the teflon seal.

    • Teflon Seal (6)
    • Circlip (7)
    • Isolator Cup (5)
  2. If required, clean the fuel injector bores using the injector bore and sleeve cleaning kit EN-47909  injector bore and sleeve cleaning kit.
    3. Fig 2: Direct Fuel Injector & Components
    GM2159849Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Lubricate a NEW O-ring seal (1) with silicon free engine oil.

  3. Install the following NEW components to the fuel injectors (4).
    • Upper O-ring Seal (1)
    • Plastic Spacer (2)
    • Retaining Ring (3)
    • Isolator Cup (5)
    • Circlip (7)
      • NOTE:

      Use the procedure described below to install the teflon seal to the fuel injectors (4).

    • Teflon Seal (6)
    4. Fig 3: View Of Injector Tip & Special Tool EN 48266
    GM1829992Courtesy of GENERAL MOTORS COMPANY
  4. Install the fuel injector teflon seal installer of the EN-48266  injector seal installer and sizer to the nozzle end of the fuel injector.
    5. Fig 4: Using Special Tool EN 48266-1
    GM1829994Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    DO NOT lubricate the NEW teflon seal.

  5. Install a NEW teflon seal over the fuel injector teflon seal installer of the EN-48266  injector seal installer and sizer.
    6. Fig 5: View Of Special Tool EN 48266-1
    GM1829993Courtesy of GENERAL MOTORS COMPANY
  6. Carefully push the NEW teflon seal along the fuel injector teflon seal installer of the EN-48266  injector seal installer and sizer and into the groove of the fuel injector by hand.
  7. Remove the fuel injector teflon seal installer of the EN-48266  injector seal installer and sizer from the nozzle end of the fuel injector.
    8. Fig 6: Injector And Seal Installer & Sizer
    GM1829997Courtesy of GENERAL MOTORS COMPANY
  8. Install the teflon seal sizer of the EN-48266  injector seal installer and sizer to the nozzle end of the fuel injector tip.
    9. Fig 7: View Of Special Tool EN 48266-2
    GM1829998Courtesy of GENERAL MOTORS COMPANY
  9. Using the teflon seal sizer of the EN-48266  injector seal installer and sizer , resize the teflon seal.
  10. Remove the teflon seal sizer of the EN-48266  injector seal installer and sizer from the nozzle end of the fuel injector tip.
    11. Fig 8: Identifying Direct Fuel Injector & Harness Assembly
    GM2004498Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Note the correct routing of the electrical wiring. Failure to reinstall the wiring properly could result in damage to the wiring.

    NOTE:

    Make sure that the fuel injector wiring harness is routed correctly. Failure to comply may cause damage to the wiring harness.

    NOTE:

    Care should be taken not to damage the fuel injectors when installing the fuel injectors to the cylinder heads.

  11. Attach the left bank fuel injectors to the fuel injector retainers on the left bank fuel injector wiring harness.
  12. Connect the left bank fuel injectors to the left bank fuel injector wiring harness.
  13. Install the left bank fuel injectors and wiring harness (1) as an assembly to the cylinder head.
  14. Connect the left bank fuel injector wiring harness electrical connector (2) to the engine wiring harness.
    15. Fig 9: Identifying Direct Fuel Injector & Harness Assembly
    GM2004498Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Make sure that the fuel injectors wiring harness is routed correctly. Failure to comply may cause damage to the wiring harness.

    NOTE:

    Care should be taken not to damage the fuel injectors when installing the fuel injectors to the cylinder heads.

  15. Install the right bank fuel injectors to the fuel injector retainers on the right bank fuel injector wiring harness.
  16. Connect the right bank fuel injectors to the right bank fuel injector wiring harness.
  17. Install the right bank fuel injectors and wiring harness (1) as an assembly to the cylinder head.
  18. Connect the right bank fuel injector wiring harness electrical connector (2) to the engine wiring harness.
    19. NOTE:

    Care should be taken not to damage the fuel injectors when installing the fuel injection fuel rails.

  19. Install the left bank fuel rail assembly to the cylinder head. Refer to Fuel Injection Fuel Rail Assembly Replacement - Bank 1 .
  20. Install the right bank fuel rail assembly to the cylinder head. Refer to Fuel Injection Fuel Rail Assembly Replacement - Bank 2 .
  21. Install the noise insulator to the fuel injection fuel rail assembly.
  22. Install a NEW fuel feed pipe. Refer to Fuel Feed Pipe Replacement .
  23. Install the intake manifold. Refer to Intake Manifold Replacement .
  24. Install the fuel pipe shield. Refer to Fuel Pipe Shield Replacement .
  25. Install the air inlet grille panel. Refer to Air Inlet Grille Panel Replacement .
  26. Install the engine cover. Refer to Intake Manifold Cover Replacement - Front .
  27. Connect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .
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