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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 Compressor Replacement (LT4) >> 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. Prior to installing the air conditioning compressor perform the air conditioning compressor oil balancing procedure. Air Conditioning Compressor Oil Balancing 
  2. GM5867345Courtesy of GENERAL MOTORS COMPANY

    Air Conditioning Compressor (1) - Install

  3. GM5867346Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Fastener Caution .

    Air Conditioning Compressor Bolt (4) - Install and tighten to 25 N.m (18 lb ft)

  4. Air Conditioning Compressor Bolt (3) - Install and tighten to 25 N.m (18 lb ft)
  5. Air Conditioning Compressor Stud (2) - Install and tighten to 9 N.m (80 lb in)
  6. Air Conditioning Compressor Nut (1) - Install and tighten to 22 N.m (16 lb ft)
  7. Air Conditioning Compressor Belt - Install - Air Conditioning Compressor Belt Replacement
  8. Supercharger Belt Tensioner Bracket - Install - Supercharger Belt Tensioner Bracket Replacement
  9. GM5867362Courtesy of GENERAL MOTORS COMPANY

    Engine and Transmission Wiring Harness Bracket (2) - Install

  10. Engine Wiring Harness Bolt (1) - Install and tighten to 22 N.m (16 lb ft)
  11. GM5867357Courtesy of GENERAL MOTORS COMPANY

    Air Conditioning Evaporative Connector Hose/Tube and Compressor Hose @ Air Conditioning Compressor (1) - Install - Air Conditioning Evaporative Connector Hose/Tube and Compressor Hose Replacement (LT4) 

  12. GM5867360Courtesy of GENERAL MOTORS COMPANY

    Air Conditioning Refrigerant Heat Exchanger (1) @ Air Conditioning Condenser - Install - Air Conditioning Refrigerant Heat Exchanger Replacement (LT4) 

  13. GM5867344Courtesy of GENERAL MOTORS COMPANY

    Air Conditioning Evaporative Connector Hose/Tube and Compressor Hose (2) @ Air Conditioning Condenser - Install - Air Conditioning Evaporative Connector Hose/Tube and Compressor Hose Replacement (LT4) 

  14. Recharge the refrigerant. Refrigerant Recovery and Recharging 
  15. Inspect for refrigerant leaks.
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