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Home >> Cadillac >> 2018 >> CT6 Plug-In >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Heating System, Ventilation System, And Air Conditioning System >> Repair Instructions >> Heater Core Replacement >> Removal Procedure

Removal Procedure

  1. GM4579193Courtesy of GENERAL MOTORS COMPANY

    Heater and Air Conditioning Evaporator and Blower Module (1) - Remove - Heater and Air Conditioning Evaporator and Blower Module Removal and Installation (With Out HP9 Hybrid) Heater and Air Conditioning Evaporator and Blower Module Removal and Installation (With HP9 Hybrid) 

  2. GM4260821Courtesy of GENERAL MOTORS COMPANY

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

  3. Heater Core Tube Bracket Fastener (2) - Remove [2x]
  4. Heater Core Tube Bracket (3) - Remove
  5. GM4260824Courtesy of GENERAL MOTORS COMPANY

    Heater Core Bracket Fastener (1) - Remove [2x]

  6. Heater Core Bracket (2) - Remove
  7. GM4260828Courtesy of GENERAL MOTORS COMPANY

    Heater Core (1) - Remove

  8. Transfer components as necessary.