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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 389 (Engine Controls And Fuel - 3.6L (LGX) - Repair Instructions) >> Repair Instructions >> Fuel Injection Fuel Rail Assembly Replacement - Bank 2 >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2017 GMC Acadia. However, it is still accessible from the selected car via links, so may be relevant.
  1. Relieve the fuel system pressure. Refer to Fuel Pressure Relief 
  2. Remove Fuel Injection Fuel Rail Noise Shield. Refer to Fuel Injection Fuel Rail Noise Shield Replacement 
  3. Remove and DISCARD Fuel Feed Intermediate Pipe. Refer to Fuel Feed Intermediate Pipe Replacement 
  4. Fig 1: Fuel Injection Fuel Rail Wiring Harness And Electrical Connector
    GM4310634Courtesy of GENERAL MOTORS COMPANY
  5. Disconnect Electrical Connector (1) @ Fuel Injection Fuel Rail Wiring Harness (2)
  6. Fig 2: Fuel Injection Fuel Rail Fasteners
    GM4310701Courtesy of GENERAL MOTORS COMPANY
  7. Remove Fuel Injection Fuel Rail Fasteners (1) (Qty: 3)
  8. Fig 3: Injector Rail Assembly Remover And Fuel Injection Fuel Rail
    GM4310570Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Ensure the hook of the Injector Rail Assembly Remover is properly seated across the underside of the fuel rail as shown.

    NOTE:

    Use care when removing the fuel injection fuel rail assembly in order to prevent damage to the fuel injector spray tips.

  9. Using the EN-49248  Injector Rail Assembly Remover (1), evenly raise the fuel injection fuel rail (2) as an assembly.
  10. Once the fuel injection fuel rail is free, remove the EN-49248  Injector Rail Assembly Remover (1).
  11. NOTE:

    The direct fuel injectors must be rebuilt whenever the injector has been released from the fuel rail or cylinder head.

  12. Once the fuel injection fuel rail (2) is removed, remove the fuel injectors and rebuild them. Fuel Rail and Injectors Cleaning and Inspection