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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 56 (Heating, Ventilation, And Air Conditioning - Repair Instructions) >> Repair Instructions >> Air Conditioning Refrigerant Heat Exchanger Replacement (LSY, L3B) >> 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. Recover the refrigerant. Refrigerant Recovery and Recharging 
  2. GM5321124Courtesy of GENERAL MOTORS COMPANY

    Unfasten the engine harness (1) from the air conditioning refrigerant heat exchanger bracket, and position out of the away.

  3. Unfasten the auxiliary generator battery jumper cable (2) from the lower air conditioning refrigerant heat exchanger bracket stud, and position away.
  4. GM5314028Courtesy of GENERAL MOTORS COMPANY

    Air Conditioning Evaporator Hose Clip Nut (1) - Remove [2x]

  5. Air Conditioning Refrigerant Heat Exchanger (2) - Remove
  6. GM5314071Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

    Air Conditioning Evaporator Thermal Expansion Valve Hose Nut (1) @ Air Conditioning Evaporator Thermal Expansion Valve - Remove

  7. GM5537606Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

    Air Conditioning Refrigerant Heat Exchanger (1) @ Air Conditioning Evaporator Thermal Expansion Valve - Remove

  8. Air Conditioning Evaporator Outlet Tube Seal (2) - Remove and DISCARD
  9. Air Conditioning Evaporator Inlet Tube Seal (3) - Remove and DISCARD
  10. GM5471127Courtesy of GENERAL MOTORS COMPANY

    Air Conditioning Compressor Hose Nut (1) - Remove

  11. Air Conditioning Evaporative Connector Hose/Tube and Compressor Hose (2) @ Air Conditioning Refrigerant Heat Exchanger - Remove
  12. Air Conditioning Compressor Hose Seal (3) - Remove and DISCARD
  13. Air Conditioning Evaporator Tube Clip Bracket Bolt (4) - Remove
  14. GM5315482Courtesy of GENERAL MOTORS COMPANY

    Air Conditioning Condenser Hose Nut (1) @ Air Conditioning Condenser - Remove

  15. Air Conditioning Condenser Tube Clip (2) - Remove
  16. GM5471158Courtesy of GENERAL MOTORS COMPANY

    Air Conditioning Evaporative Connector Hose/Tube and Compressor Hose (1) @ Air Conditioning Condenser - Remove

  17. Air Conditioning Compressor and Condenser Hose Seal (2) - Remove and DISCARD
  18. GM5536431Courtesy of GENERAL MOTORS COMPANY

    Retainer (1) @ Engine Control Module Bracket - Remove

  19. GM5471160Courtesy of GENERAL MOTORS COMPANY

    Air Conditioning Refrigerant Heat Exchanger (1) @ Air Conditioning Condenser - Remove

  20. Air Conditioning Condenser Hose Seal (2) - Remove and DISCARD
  21. Remove the air conditioning refrigerant heat exchanger from the engine compartment.
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