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Home >> Cadillac >> 2021 >> CT4 Sport, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 257 (Heating, Ventilation, And Air Conditioning) >> Repair Instructions >> Air Conditioning Refrigerant Heat Exchanger Replacement (LGY) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2022 Cadillac CT5. However, it is still accessible from the selected car via links, so may be relevant.
  1. Disconnect the negative battery cable. Battery Negative Cable Disconnection and Connection
  2. Recover the refrigerant. Refrigerant Recovery and Recharging 
  3. GM5519274Courtesy of GENERAL MOTORS COMPANY

    Air Cleaner Assembly (1) - Remove - Air Cleaner Assembly Replacement

  4. GM5519579Courtesy of GENERAL MOTORS COMPANY

    Air Conditioning Compressor Hose Nut (1) - Remove

  5. Air Conditioning Refrigerant Heat Exchanger (2) @ Air Conditioning Evaporator Hose (4) - Remove
  6. Air Conditioning Sealing Washer (3) - Remove and DISCARD
  7. GM5519596Courtesy of GENERAL MOTORS COMPANY

    Air Conditioning Condenser Hose Nut (1) - Remove

  8. Air Conditioning Compressor Hose (2) - Remove
  9. Air Conditioning Sealing Washer (3) - Remove and DISCARD
  10. GM5519605Courtesy of GENERAL MOTORS COMPANY

    Air Conditioning Refrigerant Heat Exchanger (1) - Remove

  11. Air Conditioning Sealing Washer (2) - Remove and DISCARD
  12. GM5519677Courtesy of GENERAL MOTORS COMPANY

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

  13. GM5519672Courtesy of GENERAL MOTORS COMPANY

    Air Conditioning Evaporator Hose Clip Nut (1) - Remove

  14. Wiring Harness Retainer (2) - Remove [2x]
  15. GM5519690Courtesy of GENERAL MOTORS COMPANY

    Maneuver the air conditioning refrigerant heat exchanger (1) out of the engine compartment.

  16. Air Conditioning Sealing Washer (2) - Remove and DISCARD [2x]
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