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Home >> Cadillac >> 2021 >> CT4 Sport, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 57 (Engine Heating And Cooling - Repair Instructions (1 Of 2)) >> Repair Instructions >> Engine Coolant Flow Control Valve 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. Disconnect the battery. Battery Negative Cable Disconnection and Connection
  3. Remove the oil fill cap.
  4. GM5335087

    Lift up on the front of the intake manifold cover (1).

  5. GM5335089

    Intake Manifold Cover (1) @ Upper Intake Manifold Bracket (2) - Remove

  6. GM5335764

    Oil Level Indicator (1) - Remove

  7. GM5136547
  8. Electrical Connector (1) @ Oil Level Indicator Tube (3) - Unclip
  9. Oil Level Indicator Tube Bracket Bolt (2) - Remove
  10. GM5068106

    Oil Level Indicator Tube (1) - Remove

  11. Oil Level Indicator Tube Seal (2) - Remove and DISCARD
  12. GM5137012

    Electrical Connector (1) - Disconnect [3x]

  13. Retainer (2) @ Upper Intake Manifold Bracket (3) - Unclip
  14. NOTE:

    Ensure any other retainers are disconnected.

  15. Wiring Harness (4) - Reposition
  16. GM5137013

    Upper Intake Manifold Cover Bolt (1) @ Upper Intake Manifold Bracket (2) - Remove [2x]

  17. GM5137016

    Upper Intake Manifold Cover Nut (1) - Remove [2x]

  18. Upper Intake Manifold Bracket (2) - Remove
  19. GM5431234

    Disconnect the evaporative emission canister purge tube quick disconnects (1). Plastic Collar Quick Connect Fitting Service

  20. Disconnect the evaporative emission canister purge tube (2) from the retainer (3).
  21. GM5439477

    Disconnect the electrical connector at the evaporative emission canister purge pump (2).

  22. Evaporative Emission Pipe (1) @ Evaporative Emission Canister Purge Pump (2) - Disconnect - Plastic Collar Quick Connect Fitting Service
  23. Evaporative Emission Front Pipe (1) - Reposition away
  24. GM5299671

    Evaporative Emission Canister Purge Pump Bolt (1) - Remove [3x]

  25. Evaporative Emission Canister Purge Pump (2) - Remove
  26. GM5420763

    Radiator Surge Tank Inlet Hose Clamp (1) @ Radiator Surge Tank Outlet Pipe (3) - Disengage [2x] - Hose Clamp Replacement Guidelines - Spring Type 

  27. Radiator Surge Tank Inlet Hose (2) @ Radiator Surge Tank Outlet Pipe (3) - Remove [2x]
  28. GM5312607

    Radiator Surge Tank Inlet Hose Clip (1) @ Positive Crankcase Ventilation Hose - Remove

  29. Radiator Surge Tank Inlet Hose Clip (3) @ Fuel Pump Cover - Remove
  30. Radiator Surge Tank Inlet Hose Clip (2) @ Engine Wiring Harness - Remove
  31. GM5312610

    Radiator Surge Tank Inlet Hose Clip (1) @ Radiator Surge Tank Inlet Pipe Bracket - Remove

  32. Radiator Surge Tank Inlet Hose Clip (2) @ Radiator Surge Tank Inlet Pipe Bracket - Remove
  33. Radiator Surge Tank Outlet Pipe (3) - Remove
  34. GM5137171

    Retainer (1) @ Intake Manifold (2) - Unclip [7x]

  35. Wiring Harness (3) - Disconnect and reposition
  36. GM5512539

    Radiator Surge Tank Oulet Hose Clip Bracket Nut - Loosen [2x]

  37. Radiator Surge Tank Inlet Pipe Bracket - Reposition [2x]
  38. GM5314509

    Retainer Spring (1) - Release

  39. Charge Air Cooler Outlet Air Tube (2) @ Throttle Body (3) - Disconnect
  40. GM5420336

    Electrical Connector (1) @ Intake Air Pressure and Temperature Sensor - Disconnect

  41. GM5448534

    Intake Manifold Bolt (1) - Remove [7x]

  42. Disconnect throttle body electrical connector (1)
  43. GM5087317

    Intake Manifold (1) - Remove

  44. Intake Manifold Gasket (2) - Remove and DISCARD
  45. GM5123947

    Hose Clamp (1) - Disengage [2x] - Hose Clamp Replacement Guidelines - Spring Type 

  46. Thermostat Bypass Hose (2) @ Engine Coolant Flow Control Valve - Remove
  47. Radiator Inlet Hose (3) @ Engine Coolant Flow Control Valve - Remove
  48. GM5123948

    Hose Clamp (1) - Disengage [3x] - Hose Clamp Replacement Guidelines - Spring Type 

  49. Engine Coolant Air Bleed Hose (2) @ Engine Coolant Flow Control Valve - Remove
  50. Engine Coolant Air Bleed Hose (3) @ Engine Coolant Flow Control Valve - Remove
  51. Engine Oil Cooler Coolant Inlet Hose (4) @ Engine Coolant Flow Control Valve - Remove
  52. GM5123949

    Electrical Connector (1) @ Engine Coolant Flow Control Valve - Disconnect [2x]

  53. Electrical Connector (2) @ Engine Coolant Temperature Sensor - Disconnect
  54. GM5123951

    Engine Coolant Flow Control Valve Bolt (1) - Remove [4x]

  55. GM5123952

    Engine Coolant Flow Control Valve (1) - Remove

  56. Water Outlet Seal (2) - Remove and DISCARD