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Home >> Cadillac >> 2021 >> CT4 Sport, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 280 (Engine Controls And Fuel - 2.0L (LSY) - Repair Instructions) >> Repair Instructions >> Fuel Injector Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2022 Cadillac CT5. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the fuel injection fuel rail assembly. Fuel Injection Fuel Rail Assembly Replacement 
  2. GM5034350Courtesy of GENERAL MOTORS COMPANY

    Electrical Connector (2) - Disconnect [5x]

  3. Fuel Injector Wiring Harness (1) - Remove
  4. GM5034357Courtesy of GENERAL MOTORS COMPANY

    Ensure the EN-50791-100  Fuel Injector Installation Adapter (2) is mounted to the EN-50791  Injector to Rail Installer (1).

  5. Install EN-50791  Injector to Rail Installer (1) to the fuel injector (3).
  6. GM5034363Courtesy of GENERAL MOTORS COMPANY

    Using EN-50791  Injector to Rail Installer (1), compress the fuel injector (4) into the fuel rail.

  7. Fuel Injector Retainer (3) - Remove
  8. Remove the EN-50791  Injector to Rail Installer (1) along with the EN-50791-100  Fuel Injector Installation Adapter (2).
  9. Repeat the procedure for the other 3 fuel injectors.
  10. GM5034352Courtesy of GENERAL MOTORS COMPANY

    Fuel Injector (3) - Remove [4x]

  11. Fuel Injection Fuel Rail Seal (1) - Remove and DISCARD [4x]
  12. Fuel Injector Seal Spacer (2) - Remove [4x]
  13. Direct Fuel Injector Hold Down Clamp (5) - Remove and DISCARD [4x]
  14. Fuel Injector Nozzle Housing Seal (4) - Remove and DISCARD [8x]