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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 >> Heater Outlet Pipe Replacement (AWD with LGY from Auxiliary Water Pump to Heater Outlet Hose at Radiator Surge Tank) >> 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. GM5568534Courtesy of GENERAL MOTORS COMPANY

    Heater Outlet Pipe (2) - Install

  2. Heater Outlet Hose Clamp (1) - Engage - Hose Clamp Replacement Guidelines - Spring Type
  3. GM5568530Courtesy of GENERAL MOTORS COMPANY

    Heater Outlet Pipe (1) @ Auxiliary Water Pump - Install

  4. Heater Outlet Hose Clamp (2) - Engage - Hose Clamp Replacement Guidelines - Spring Type
  5. GM5568524Courtesy of GENERAL MOTORS COMPANY

    Rotate the 2 heater hose clip brackets (1) upward engaging the integral locking features.

  6. GM5519721Courtesy of GENERAL MOTORS COMPANY

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

  7. Fill the cooling system to the proper level. Cooling System Draining and Filling (LGY Static Fill) , or Cooling System Draining and Filling (LGY GE 47716)
  8. Start the engine and check for coolant leaks.