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Home >> Chevrolet >> 2020 >> Malibu LS >> Repair and Diagnosis >> External Pages >> Different car >> Section 21 (Heating, Ventilation, And Air Conditioning) >> Repair Instructions >> Heater Core Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2019 Chevrolet Malibu. 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 (Without KL9) , or Battery Negative Cable Disconnection and Connection (With KL9)
  2. Recover the refrigerant. Refrigerant Recovery and Recharging (R-1234yf) 
  3. Drain the cooling system. Cooling System Draining and Filling (GE-47716) , or Cooling System Draining and Filling (Static)
  4. Heater Inlet Hose @ Heater Core Tube - Remove - Heater Inlet Hose Replacement (LTG) , or Heater Inlet Hose Replacement (LKN) , or Heater Inlet Hose Replacement (LFV) 
  5. Heater Outlet Hose @ Heater Core Tube - Remove - Heater Outlet Hose Replacement (LFV) , or Heater Outlet Hose Replacement (LTG) , or Heater Outlet Hose Replacement (LKN) 
  6. Air Conditioning Evaporator Tube @ Air Conditioning Evaporator Thermal Expansion Valve - Remove - Air Conditioning Evaporator Tube Replacement (LFV, LTG) , or Air Conditioning Evaporator Tube Replacement (LKN) 
  7. Instrument Panel Assembly - Remove - Instrument Panel Assembly Replacement
  8. GM4218960Courtesy of GENERAL MOTORS COMPANY

    Side Window Defogger Outlet Duct - Left Side (2) - Remove - Side Window Defogger Outlet Duct Replacement - Left Side 

  9. GM4218959Courtesy of GENERAL MOTORS COMPANY

    Side Window Defogger Outlet Duct - Right Side (2) - Remove - Side Window Defogger Outlet Duct Replacement - Right Side 

  10. GM4223039Courtesy of GENERAL MOTORS COMPANY

    Windshield Defroster Outlet Duct (2) - Remove - Windshield Defroster Outlet Duct Replacement 

  11. GM4223131Courtesy of GENERAL MOTORS COMPANY

    Instrument Panel Center Air Outlet Duct Bolt (1) - Remove [4x]

  12. GM4223133Courtesy of GENERAL MOTORS COMPANY

    Instrument Panel Center Air Outlet Duct Bolt (1) - Remove

  13. Instrument Panel Center Air Outlet Duct Bolt (2) - Remove
  14. Wiring Harness Retainer @ Instrument Panel Center Air Outlet Duct - Disconnect
  15. GM4223137Courtesy of GENERAL MOTORS COMPANY

    Instrument Panel Center Air Outlet Duct (1) - Remove

  16. GM4217767Courtesy of GENERAL MOTORS COMPANY

    Floor Rear Air Outlet Duct Adapter (1) - Left Side - Remove - Floor Rear Air Outlet Duct Adapter Replacement (Left Side) 

  17. GM4217857Courtesy of GENERAL MOTORS COMPANY

    Floor Rear Air Outlet Duct Adapter (1) - Right Side - Remove - Floor Rear Air Outlet Duct Adapter Replacement (Right Side) 

  18. GM4217936Courtesy of GENERAL MOTORS COMPANY

    Air Conditioning Evaporator and Blower Module Drain Hose (1) - Remove - Air Conditioning Evaporator and Blower Module Drain Hose Replacement 

  19. GM4217740Courtesy of GENERAL MOTORS COMPANY

    Instrument Panel Compartment Air Duct (2) - Remove - Instrument Panel Compartment Air Duct Replacement (K4C) 

  20. GM4218651Courtesy of GENERAL MOTORS COMPANY

    Front Floor Console Rear Air Front Duct (1) - Remove - Front Floor Console Rear Air Front Duct Replacement (Front Adapter) 

  21. Temporarily support the heater and air conditioning evaporator and blower module.
  22. GM4225245Courtesy of GENERAL MOTORS COMPANY

    From within the engine compartment, remove the heater and air conditioning evaporator and blower module nut (1), securing the air conditioning evaporator and blower module to the cowl panel.

  23. GM4238030Courtesy of GENERAL MOTORS COMPANY

    Instrument Panel Tie Bar (2) - Remove - Instrument Panel Tie Bar Replacement (without J71) , or Instrument Panel Tie Bar Replacement (with J71)

  24. GM4234325Courtesy of GENERAL MOTORS COMPANY

    Brake and Accelerator Pedal Assembly (1) - Remove - Brake and Accelerator Pedal Assembly Replacement (Without HP4) , or Brake and Accelerator Pedal Assembly Replacement (With HP4)

  25. GM4228739Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to HVAC Module Drain Tube Caution .

    Heater and Air Conditioning Evaporator and Blower Module (1) - Remove

  26. GM4282536Courtesy of GENERAL MOTORS COMPANY

    Heater And Air Conditioning Evaporator Tube Seal (1) - Remove [2x]

  27. Heater and Air Conditioning Evaporator and Blower Module Screw (2) - Remove
  28. GM4282567Courtesy of GENERAL MOTORS COMPANY

    Unlatch and rotate the heater core tube bracket (1) up.

  29. Heater Core (2) - Remove