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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 134 (Engine Heating And Cooling - Repair Instructions (2 Of 2)) >> Repair Instructions >> Electric Engine Coolant Pump Replacement (LSY) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.
  1. Drain the cooling system. Cooling System Draining and Filling (LSY GE 47716) , or Cooling System Draining and Filling (LSY Static Fill) , or Cooling System Draining and Filling (LSY with V03 Static Fill) , or Cooling System Draining and Filling (LSY with V03 GE 47716)
  2. GM5405472

    Air Cleaner Outlet Duct Clamp (1) - Loosen [2x]

  3. Evaporative Emission Canister Purge Tube (2) - Disconnect - Plastic Collar Quick Connect Fitting Service
  4. Positive Crankcase Ventilation Tube (3) - Disconnect - Plastic Collar Quick Connect Fitting Service
  5. Disconnect the electrical connector.
  6. GM5405476

    Air Cleaner Outlet Duct (1) - Remove

  7. Disconnect the electrical connector and remove all wiring harnesses from the air cleaner assembly.
  8. GM5405481

    Air Cleaner Bolt (1) - Remove

  9. GM5405482

    Air Cleaner Assembly (1) - Remove

  10. GM5314511

    Retainer Spring (1) - Release

  11. Charge Air Cooler Inlet Air Tube (2) @ Turbocharger (3) - Remove and position aside
  12. GM5323963

    Hose Clamp (1) - Disengage - Hose Clamp Replacement Guidelines - Spring Type

  13. Radiator Outlet Hose (2) @ Electric Water Pump - Remove
  14. GM5323717

    Hose Clamp (1) - Disengage - Hose Clamp Replacement Guidelines - Spring Type

  15. Auxiliary Water Pump Inlet Pipe (2) @ Electric Water Pump - Remove
  16. GM5524599

    Engine Wiring Harness Retainer (1) @ Engine Wiring Harness Bracket - Remove [3x]

  17. Electrical Connector (2) @ Electric Water Pump - Disconnect
  18. NOTE:

    The wiring harness tie strap can be re-used.

  19. Remove wiring harness tie strap from the engine wiring harness bracket and reposition.
  20. GM5314789

    Water Pump Bolt (1) - Remove

  21. GM5314798

    Water Pump Bolt (1) - Remove [2x]

  22. GM5314807

    Hose Clamp (1) - Disengage - Hose Clamp Replacement Guidelines - Spring Type

  23. NOTE:

    Do NOT remove the auxiliary water pump outlet upper hose (3) from the engine coolant thermostat housing inlet pipe.

  24. Remove the electric water pump (2) from the auxiliary water pump outlet upper hose (3).
  25. GM5323976

    Electric Water Pump (1) - Remove

  26. GM5323983

    Engine Wiring Harness Fuse Block Bracket Bolt (1) - Remove [2x]

  27. Engine Wiring Harness Bracket (2) - Remove
  28. GM5323996

    Water Pump Cover Bolt (1) - Remove [3x]

  29. Water Pump Cover (2) - Remove