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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 >> Cooling System Draining and Filling (LSY with V03 Static Fill) >> Draining Procedure (Engine Auxiliary Radiator)

Draining Procedure (Engine Auxiliary Radiator)

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.
NOTE:

The following procedure is only necessary when servicing the engine auxiliary radiator or when a complete system drain and fill is required.

  1. Perform the engine radiator draining procedure as outlined above.
  2. Remove the right front tire and wheel assembly. Tire and Wheel Removal and Installation
  3. GM5394612
    NOTE:
    • Quantity of fasteners may vary based on option content.
    • Left side shown, right side similar.

    Front Tire Front Air Deflector Bolt- Right Side (1) - Remove [4x]

  4. Front Tire Front Air Deflector- Right Side (2) - Remove
  5. GM5422163
    NOTE:

    Left side shown, right side similar.

    Front Bumper Fascia Air Deflector Bolt- Right Side (1) - Remove [3x]

  6. Front Bumper Fascia Bolt- Right Side (2) - Remove [2x]
  7. GM5439107
    NOTE:
    • Quantity of fasteners may vary based on option content.
    • Left side shown, right side similar.

    Engine Front Splash Shield Retainer- Right Side (3) - Remove [2x]

  8. Engine Front Splash Shield Bolt- Right Side (1) - Remove [5x]
  9. Engine Front Splash Shield- Right Side (2) - Remove
  10. GM5470175

    Front Wheelhouse Liner Bolt- Right Side (1) - Remove [6x]

  11. Front Wheelhouse Liner Retainer- Right Side (2) - Remove
  12. Front Wheelhouse Liner- Right Side (3) - Reposition
  13. GM5470177

    Auxiliary Radiator Duct Retainer (1) - Remove [3x]

  14. GM5470179

    Auxiliary Radiator Rear Duct (1) - Remove

  15. Remove the front bumper fascia. Front Bumper Fascia Removal and Installation (without Blackwing) , or Front Bumper Fascia Removal and Installation (with Blackwing) , or Front Bumper Fascia Removal and Installation (with Blackwing CFV, CFZ)
  16. GM5454422

    Auxiliary Radiator Duct Retainer (1) - Remove [3x]

  17. GM5454427

    Auxiliary Radiator Duct Retainer (1) - Remove [2x]

  18. GM5454437

    Auxiliary Radiator Front Duct (1) - Remove

  19. GM5471805

    Using an appropriate tool, disengage the radiator inlet hose retainer (1).

  20. Radiator Inlet Hose (2) - Remove
  21. GM5471809

    Radiator Outlet Hose Clip (3) - Remove

  22. Using an appropriate tool, disengage the radiator outlet hose retainer (2).
  23. Radiator Outlet Hose (1) @ Engine Auxiliary Radiator - Remove
  24. GM5471812

    Charge Air Cooler Bracket Bolt (1) - Remove [3x]

  25. Charge Air Cooler Upper Bracket Nut (2) - Loosen
  26. GM5471814

    Remove the engine auxiliary radiator assembly (1) from the vehicle.

  27. Invert the engine auxiliary radiator assembly (1) pouring the contents into a drain pan.
  28. GM5471814

    Install the engine auxiliary radiator assembly (1) to the vehicle.

  29. GM5471812
    CAUTION:

    Refer to Fastener Caution

    Charge Air Cooler Bracket Bolt (1) - Install and tighten [3x] - Fastener Specifications

  30. Charge Air Cooler Upper Bracket Nut (2) - Tighten - Fastener Specifications
  31. GM5471809

    Install the radiator outlet hose retainer (2) into the radiator outlet hose connector.

  32. Install the radiator outlet hose (1) to the engine auxiliary radiator ensuring that the radiator outlet hose retainer (3) is fully engaged.
  33. Radiator Outlet Hose Clip (3) - Install
  34. GM5471805

    Install the radiator inlet hose retainer (1) into the radiator inlet hose connector.

  35. Radiator Inlet Hose (2) - Install
  36. Install the radiator inlet hose (2) to the engine auxiliary radiator ensuring that the radiator inlet hose retainer (1) is fully engaged.
  37. GM5454437

    Auxiliary Radiator Front Duct (1) - Install

  38. GM5454427

    Auxiliary Radiator Duct Retainer (1) - Install [2x]

  39. GM5454422

    Auxiliary Radiator Duct Retainer (1) - Install [3x]

  40. Install the front bumper fascia. Front Bumper Fascia Removal and Installation (without Blackwing) , or Front Bumper Fascia Removal and Installation (with Blackwing) , or Front Bumper Fascia Removal and Installation (with Blackwing CFV, CFZ)
  41. GM5470179

    Auxiliary Radiator Rear Duct (1) - Install

  42. GM5470177

    Auxiliary Radiator Duct Retainer (1) - Install [3x]

  43. GM5470175

    Front Wheelhouse Liner- Right Side (3) - Move into position

  44. Front Wheelhouse Liner Retainer- Right Side (2) - Install
  45. Front Wheelhouse Liner Bolt- Right Side (1) - Install and tighten [6x] - Fastener Specifications
  46. GM5422163
    NOTE:

    Left side shown, right side similar.

    Front Bumper Fascia Air Deflector Bolt- Right Side (1) - Install and tighten [3x] - Fastener Specifications

  47. Front Bumper Fascia Bolt- Right Side (2) - Install and tighten [2x] - Fastener Specifications
  48. GM5439107
    NOTE:
    • Quantity of fasteners may vary based on option content.
    • Left side shown, right side similar.

    Engine Front Splash Shield- Right Side (2) - Install

  49. Engine Front Splash Shield Retainer- Right Side (3) - Install [2x]
  50. Engine Front Splash Shield Bolt- Right Side (1) - Install and tighten [5x] - Fastener Specifications
  51. GM5394612
    NOTE:
    • Quantity of fasteners may vary based on option content.
    • Left side shown, right side similar.

    Front Tire Front Air Deflector- Right Side (2) - Install

  52. Front Tire Front Air Deflector Bolt- Right Side (1) - Install and tighten [4x] - Fastener Specifications
  53. Install the right front tire and wheel assembly. Tire and Wheel Removal and Installation
  54. Continue with the static fill and air removal procedure below.
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