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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 57 (Engine Heating And Cooling - Repair Instructions (1 Of 2)) >> Repair Instructions >> Radiator Surge Tank Replacement (LF4) >> 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 (L3B Static Fill) , or Cooling System Draining and Filling (L3B GE 47716) , or Cooling System Draining and Filling (LSY with V03 GE 47716) , or Cooling System Draining and Filling (LF4 Static Fill) , or Cooling System Draining and Filling (LF4 GE 47716) 
  2. GM5325063
    NOTE:

    Left side shown, right side similar.

    Windshield Wiper Arm- Left Side and Right Side (3) - Remove [2x]

  3. Using the appropriate trim tool, remove the (2) windshield wiper arm finish caps (1) from the windshield wiper arms (3).
  4. Windshield Wiper Arm Nut- Left Side and Right Side (2) - Remove [2x]
  5. Grasp the outer end of the windshield wiper arms (3) and gently rock the arm back and forth to remove it from the windshield wiper transmission pivot shaft.
  6. GM5417116
    NOTE:

    Left side shown, right side similar.

    Air Inlet Grille Panel Extension- Left Side and Right Side (1) - Remove [2x]

  7. Apply two layers of masking tape around the top edge of the service part to prevent paint damage.
  8. Using a suitable plastic trim tool, carefully release the air inlet grille panel extension clips.
  9. Remove the air inlet grille panel extension (1) from the air inlet grille panel and upper front fender.
  10. GM5862927
    NOTE:

    Left side shown, right side similar.

    Front Compartment Side Sight Shield Retainer- Left Side and Right Side (1) - Remove [6x]

  11. Front Compartment Side Sight Shield- Left Side and Right Side (2) - Remove [2x]
  12. GM5421986
    NOTE:

    Left side shown, right side similar.

    Hood Rear Outer Air Inlet Seal Retainer - Left Side and Right Side (1) - Remove [4x]

  13. Hood Rear Outer Air Inlet Seal- Left Side and Right Side (2) - Remove [2x]
  14. GM5865291
    NOTE:

    Left side shown, right side similar.

    Air Inlet Grille Panel Retainer- Left Side and Right Side (1) - Remove [4x]

  15. Air Inlet Grille Panel Extension- Left Side and Right Side (2) - Remove [2x]
  16. GM5417442

    Air Inlet Grille Panel Retainer (1) - Remove [6x]

  17. Disconnect the windshield washer nozzle hose from the windshield washer pump hose.
  18. Lift the front edge of the air inlet grille panel (2) and slide the panel forward from both hood hinges to remove.
  19. Air Inlet Grille Panel (2) - Remove
  20. GM5420286

    Windshield Wiper System Module Shield (1) - Remove

  21. NOTE:

    To prevent erroneous DTC's, disconnect the battery negative cable before disconnecting the windshield wiper motor electrical connector.

  22. Disconnect the battery negative cable. Battery Negative Cable Disconnection and Connection
  23. GM5420344

    Disconnect the windshield wiper motor electrical connector.

  24. Windshield Wiper System Module Bolt (1) - Remove [2x]
  25. Slide the windshield wiper system module (2) inboard to release the grommet from the plenum and remove the windshield wiper system module (2) from the vehicle.
  26. GM5499581

    Air Inlet Deflector Water Deflector Retainer (1) - Remove [2x]

  27. GM5499583

    Air Inlet Deflector Water Deflector (1) - Remove

  28. GM5422039

    Plenum Front Panel Nut (1) - Remove [3x]

  29. Plenum Front Panel Bolt (2) - Remove [3x]
  30. Disconnect the electrical connector.
  31. Pull the forward lamp wiring harness (3) out from the plenum front panel.
  32. GM5865879

    Plenum Front Panel Bolt (1) - Remove [4x]

  33. Plenum Front Panel Nut (2) - Remove [3x]
  34. GM5865881

    Plenum Front Panel (1) - Remove

  35. GM5861175

    Radiator Surge Tank Inlet Hose Clamp (1) - Disengage - Hose Clamp Replacement Guidelines - Spring Type 

  36. Radiator Surge Tank Inlet Hose (2) @ Radiator Surge Tank - Remove
  37. Heater Outlet Hose Clamp (3) - Disengage - Hose Clamp Replacement Guidelines - Spring Type 
  38. Heater Outlet Hose (4) @ Radiator Surge Tank - Remove
  39. GM5862522

    Radiator Surge Tank Nut (1) - Remove

  40. GM5862541

    Radiator Surge Tank Clip (1) @ Front Wheelhouse Panel Extension - Remove

  41. GM5862553

    Radiator Surge Tank (1) - Remove