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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 279 (Engine Cooling System - Repair Instructions) >> Repair Instructions >> Engine Coolant Heater Wiring Extension Harness Replacement (LSY) >> Removal Procedure

Removal 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. Drain the cooling system. Cooling System Draining and Filling (LSY GE 47716) , or Cooling System Draining and Filling (LSY Static Fill) .
  2. GM5319649Courtesy of GENERAL MOTORS COMPANY

    Generator (1) - Remove - Generator Replacement (LSY)

  3. GM5324289Courtesy of GENERAL MOTORS COMPANY

    Engine Coolant Heater Cord (1) @Engine Coolant Heater (2) - Disconnect

  4. GM5324676Courtesy of GENERAL MOTORS COMPANY

    Engine Coolant Heater Cord Retainer (1) @Engine Wiring Harness - Remove

  5. Engine Coolant Heater Cord Retainer (2) @Air Conditioning Refrigerant Heat Exchanger - Remove
  6. GM5324681Courtesy of GENERAL MOTORS COMPANY

    Front License Plate Bracket (2) - Remove - Front License Plate Bracket Replacement

  7. GM5313758Courtesy of GENERAL MOTORS COMPANY

    Radiator Air Front Lower Baffle (1) - Remove - Radiator Air Front Upper Baffle Replacement (LSY) 

  8. GM5324680Courtesy of GENERAL MOTORS COMPANY

    Engine Coolant Heater Cord Retainer (1) @Engine Control Module Bracket - Remove [2x]

  9. Engine Coolant Heater Cord Retainer (2) @Front Compartment Inner Side Rail - Remove
  10. GM5324686Courtesy of GENERAL MOTORS COMPANY

    Engine Coolant Heater Cord Retainer (1) @Front Compartment Inner Side Rail - Remove

  11. Engine Coolant Heater Cord Retainer (2) @Front Bumper Impact Bar - Remove [3x]
  12. Engine Coolant Heater Wiring Extension Harness (3) - Remove