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Home >> Cadillac >> 2021 >> CT4 Sport, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 279 (Engine Cooling System - Repair Instructions) >> Repair Instructions >> Heater Inlet And Outlet Pipe Replacement >> 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. GM5507594Courtesy of GENERAL MOTORS COMPANY

    Engine Rear Noise Shield (1) - Remove - Engine Rear Noise Shield Replacement

  2. Heater Inlet Hose@Heater Inlet and Outlet Pipe - Disconnect - Heater Inlet Hose Replacement (LSY) , or Heater Inlet Hose Replacement (LGY)
  3. Auxiliary Heater Outlet Hose@Heater Inlet and Outlet Pipe - Disconnect - Auxiliary Heater Outlet Hose Replacement
  4. Reposition the engine coolant heater cord thermostat for access to the engine coolant air bleed pipe bolts.
  5. GM5898951Courtesy of GENERAL MOTORS COMPANY

    Engine Coolant Air Bleed Pipe Bolt (1) - Remove

  6. Engine Coolant Air Bleed Pipe Bolt (2) - Remove [2x]
  7. Heater Inlet and Outlet Pipe (3) - Remove
  8. Heater Inlet and Outlet Pipe Gasket (4) - Remove and DISCARD