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Home >> Chevrolet >> 2014 >> Cruze Diesel >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Controls And Fuel - 2.0L (LUZ) Diesel - Repair Instructions >> Repair Instructions >> Fuel Injector Replacement >> Removal Procedure
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Removal Procedure

    WARNING:

    Refer to Safety Goggles and Fuel Warning .

    WARNING:

    Refer to Gasoline/Gasoline Vapors Warning .

    NOTE:
    • Be very thorough in terms of cleanliness when working in the fuel system. Prevent dirt from entering the fuel system by cleaning the hoses and plugging the pipes and lines upon removal. Store the components so that contaminants cannot enter.
    • In order to reuse the injectors, mark the injectors so that they can be installed to the same cylinder
    WARNING:

    High voltages may occur in Piezo Fuel Injector and control units, Fuel Injectors are usually charged up to 160V and control unit internal voltage is usually 240V, To prevent personal injury and/or component damage disconnect the battery cable.

  1. Disconnect the battery negative cable. Refer to Battery Negative Cable Disconnection and Connection .
  2. Remove the engine sight shield. Refer to Engine Sight Shield Replacement .
  3. Disconnect the fuel injection fuel return hoses from the fuel injectors and reposition the hoses. Refer to Fuel Injection Fuel Return Hose Replacement .
    4. NOTE:

    Wait 60 sec. after engine shutdown before opening the high pressure fuel system.

  4. Remove the 4 fuel injection fuel feed pipes. Refer to Fuel Injection Fuel Feed Pipe Replacement - Right Side .
    5. Fig 1: Engine Sight Shield Holding Studs And Electrical Connections
    GM2190578Courtesy of GENERAL MOTORS COMPANY
  5. Remove the 2 engine sight shield holding studs (1).
  6. Disconnect the 4 electrical connections (2) and hang the wiring harness aside.
    7. Fig 2: Injector Bracket Bolts And Washers
    GM3416034Courtesy of GENERAL MOTORS COMPANY
  7. Remove the 4 Injector bracket bolts (2) along with the 4 washers (2).
    8. Fig 3: Installing EN-51256 Remover To Injector
    GM3416035Courtesy of GENERAL MOTORS COMPANY
  8. Install the EN-51256  remover (2) to the injector (1) along with the GE-02619  remover (3) in order to remove the fuel injector.
    9. Fig 4: Injectors And Fuel Injector Brackets
    GM3416036Courtesy of GENERAL MOTORS COMPANY
  9. Remove the 4 injectors (3) along with the fuel injector bracket (2).
  10. Separate the 4 fuel injector brackets from the fuel injectors.
  11. Remove and DISCARD the 4 fuel injector seal rings (1).
    12. Fig 5: Cleaning Tool
    GM2191259Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to .

  12. Clean the injector sealing surfaces in the cylinder head using the EN-47632  cleaning tool (1) in following procedure:
    1. Use the brush side to loosen the dirt.
    2. Use the sponge side to remove the dirt.
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