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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 257 (Heating, Ventilation, And Air Conditioning) >> Repair Instructions >> Air Conditioning Compressor Hose Replacement >> Installation Procedure

Installation 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. GM5521226Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Component Fastener Tightening Caution .

    NOTE:

    Refer to the procedure link for torque specification.

    Air Conditioning Refrigerant Pressure Sensor (2) - Install and tighten - Air Conditioning Refrigerant Pressure Sensor Replacement - High Pressure (LSY) , or Air Conditioning Refrigerant Pressure Sensor Replacement - High Pressure (LGY) , or Air Conditioning Refrigerant Pressure Sensor Replacement - High Pressure (LT4) 

    2. CAUTION:

    New Air Conditioning sealing washers should never be exposed to any type of oil or lubricant, the rubber material may absorb the oil causing failures during installation or the life of the vehicle.

  2. Air Conditioning Compressor Hose Seal (1) - Install NEW
  3. GM5521708Courtesy of GENERAL MOTORS COMPANY

    Maneuver the air conditioning compressor hose (2) back into the engine compartment.

  4. Connect electrical connector at air conditioning refrigerant pressure sensor.
    5. CAUTION:

    Refer to Fastener Caution .

  5. Air Conditioning Compressor and Condenser Hose Nut (1) - Install and tighten to 22 N.m (16 lb ft)
  6. Install wire harness retainer from top of stud.
  7. GM5520986Courtesy of GENERAL MOTORS COMPANY

    Air Conditioning Compressor Hose Seal (2) - Install NEW

  8. Air Conditioning Evaporator Hose (1) - Install
  9. GM5520980Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Refer to the procedure link for torque specification.

    Air Conditioning Compressor Hose Bolt (1) - Install and tighten - Air Conditioning Evaporator Hose Replacement 

  10. GM5521024Courtesy of GENERAL MOTORS COMPANY

    Air Cleaner Outlet Resonator-Left Side (2) - Install

  11. Positive Crankcase Ventilation Tube (1) - Connect - Plastic Collar Quick Connect Fitting Service
  12. GM5519726Courtesy of GENERAL MOTORS COMPANY

    Retaining Clip (4) - Engage

  13. Positive Crankcase Ventilation Tube (3) - Connect - Plastic Collar Quick Connect Fitting Service
  14. Charge Air Bypass Valve Hose (2) - Install
  15. Charge Air Bypass Valve Hose Clamp (1) - Engage - Hose Clamp Replacement Guidelines - Spring Type
  16. GM5519605Courtesy of GENERAL MOTORS COMPANY

    Air Conditioning Condenser Hose Seal (2) - Install NEW

  17. Air Conditioning Refrigerant Heat Exchanger (1) - Install
  18. GM5519596Courtesy of GENERAL MOTORS COMPANY

    Air Conditioning Compressor Hose Seal (3) - Install NEW

  19. Air Conditioning Compressor Hose (2) - Install
    20. NOTE:

    Refer to the procedure link for torque specification.

  20. Air Conditioning Condenser Hose Nut (1) - Install and tighten - Air Conditioning Refrigerant Heat Exchanger Replacement (LSY) , or Air Conditioning Refrigerant Heat Exchanger Replacement (LGY) , or Air Conditioning Refrigerant Heat Exchanger Replacement (LT4) 
  21. GM5519721Courtesy of GENERAL MOTORS COMPANY

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

  22. Connect the battery negative cable. Battery Negative Cable Disconnection and Connection
  23. Recharge the refrigerant. Refrigerant Recovery and Recharging 
  24. Inspect for refrigerant leaks.
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