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Home >> GMC >> 2021 >> Acadia AT4 >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls And Fuel - 3.6L (LGX) - Repair Instructions >> Repair Instructions >> Fuel Injector Replacement >> Removal Procedure
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Removal Procedure

WARNING:

Wear safety glasses in order to avoid eye damage.

  1. Relieve the high side fuel system pressure. Fuel Pressure Relief 
  2. NOTE:

    The fuel injectors have an alignment feature, note the position of the injectors alignment for installation.

  3. Remove the fuel injection fuel rail assembly.
  4. Fuel Injector Wiring Harness (1) - Disconnect
    GM2202041Courtesy of GENERAL MOTORS COMPANY
  5. Taking care not to touch or apply force to the injector tip or electrical connector, remove the fuel injector (1) by pressing down on the retainer lever to release the tab (2) and simultaneously rotating the injector 45 degrees and pulling straight out from the fuel rail.
    GM2915261Courtesy of GENERAL MOTORS COMPANY
  6. Remove and DISCARD the fuel injector retainer (3) from the fuel injector.
  7. Using pliers, remove and DISCARD the fuel injector bushing (3) straight out from injector body.
    GM2915263Courtesy of GENERAL MOTORS COMPANY
  8. Remove and DISCARD the fuel injector O-ring (1) and plastic spacers (2).
  9. Fuel Injector Seal (4) - Remove and DISCARD [2x]