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Home >> Buick >> 2020 >> Envision Base >> Repair and Diagnosis >> External Pages >> Different car >> Section 42 (Heating System, Ventilation System, And Air Conditioning System) >> Repair Instructions >> Heater Core Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2018 Buick Regal TourX and 2018 Buick Regal. However, it is still accessible from the selected car via links, so may be relevant.
  1. Cooling System Draining and Filling (Static)Cooling System Draining and Filling (GE 47716) - Drain
  2. Brake and Accelerator Pedal Assembly Replacement - Remove
  3. Instrument Panel Tie Bar Replacement - Remove
  4. GM4641191Courtesy of GENERAL MOTORS COMPANY

    Heater Core Cover Screw (1) - Remove

  5. Heater Core Cover (2) - Unclip
  6. GM4641192Courtesy of GENERAL MOTORS COMPANY

    Heater Core Clamp (1) - Unlock [2x]

  7. GM4641193Courtesy of GENERAL MOTORS COMPANY

    Heater Core Clamp (2) - Remove [2x]

  8. Heater Core Tube (1) - Remove [2x]
  9. Heater Core Tube Sealing Ring (3) - Remove and DISCARD [2x]
  10. GM4641194Courtesy of GENERAL MOTORS COMPANY

    Heater Core (1) - Remove