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Home >> Cadillac >> 2021 >> CT4 Sport, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 56 (Heating, Ventilation, And Air Conditioning - Repair Instructions) >> Repair Instructions >> Heater Outlet Hose Replacement (L3B) >> Installation Procedure

Installation Procedure

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  1. GM5472775Courtesy of GENERAL MOTORS COMPANY

    Heater Outlet Hose (2) @ Heater Outlet Pipe - Install

  2. Heater Outlet Hose Clamp (1) - Engage - Hose Clamp Replacement Guidelines - Spring Type
  3. GM5472774Courtesy of GENERAL MOTORS COMPANY

    Heater Outlet Hose (2) @ Heater Core - Install

  4. Heater Outlet Hose Retainer (1) - Engage
  5. GM5472772Courtesy of GENERAL MOTORS COMPANY

    Heater Outlet Hose (2) @ Radiator Surge Tank - Install

  6. Heater Outlet Hose Clamp (1) - Engage - Hose Clamp Replacement Guidelines - Spring Type
  7. Fill the cooling system to the proper level. Cooling System Draining and Filling (LSY GE 47716) , or Cooling System Draining and Filling (LSY Static Fill) , or Cooling System Draining and Filling (LSY with V03 Static Fill) , or Cooling System Draining and Filling (L3B Static Fill) , or Cooling System Draining and Filling (L3B GE 47716) , or Cooling System Draining and Filling (LSY with V03 GE 47716) , or Cooling System Draining and Filling (LF4 Static Fill) , or Cooling System Draining and Filling (LF4 GE 47716)
  8. Start the engine and check for coolant leaks.