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Home >> Chevrolet >> 2023 >> Tahoe SSV >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 (Engine Controls And Fuel - 3.0L (Lm2) Diesel - Repair Instructions (2 Of 2)) >> Repair Instructions >> Reductant Fluid Injector Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Partially drain the charge air cooling system. Charge Air Cooling System Draining and Filling (GE 47716 LM2)Charge Air Cooling System Draining and Filling (Static LM2)Charge Air Cooling System Draining and Filling (GE 47716 LM2 with RC1)Charge Air Cooling System Draining and Filling (Static LM2 with RC1)
  2. GM5618826Courtesy of GENERAL MOTORS COMPANY

    Emission Reduction Fluid Exhaust Front Pipe Injector Supply Pipe Insulator (1) - Remove

  3. GM5618827Courtesy of GENERAL MOTORS COMPANY

    Emission Reduction Fluid Exhaust Front Pipe Injector Supply Pipe (1) - Disconnect - Plastic Collar Quick Connect Fitting Service

  4. GM5618830Courtesy of GENERAL MOTORS COMPANY

    Electrical Connector (1) - Disconnect

  5. Retainer (2) - Remove [2x]
  6. Charge Air Cooler Coolant Hose Connector Clamp (3) - Disengage - Hose Clamp Replacement Guidelines - Spring Type
  7. Fuel Cooler Coolant Cooler Inlet Hose (4) - Remove
  8. Charge Air Cooler Coolant Hose Connector Clamp (5) - Disengage - Hose Clamp Replacement Guidelines - Spring Type
  9. Charge Air Cooler Coolant Hose (6) - Remove
  10. GM5618831Courtesy of GENERAL MOTORS COMPANY

    Emission Reduction Fluid Injector Clamp (1) - Remove and DISCARD

  11. NOTE:

    Do not use a prying tool to remove the injector.

  12. Reductant Fluid Injector (2) - Remove
  13. NOTE:

    After removing the injector, wipe any residual DEF with a clean towel to avoid urea crystal build up at the connection during installation. Urea crystal build-up can result in a future leak.

  14. Exhaust System Front Gasket (3) - Remove and DISCARD
  15. Clean the exhaust mounting flange and injector mounting surfaces to remove any soot or emission reduction fluid deposits.