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Home >> Cadillac >> 2021 >> CT4 Sport, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 92 (Engine Mechanical - 2.0L (LSY) - Repair Instructions (3 Of 3)) >> Repair Instructions >> Turbocharger Heat Shield Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2022 Cadillac CT4. 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) , or Cooling System Draining and Filling (LSY with V03 Static Fill) , or Cooling System Draining and Filling (LSY with V03 GE 47716) , or
  2. Disconnect the battery. Battery Negative Cable Disconnection and Connection
  3. GM5405472

    Air Cleaner Outlet Duct Clamp (1) - Loosen [2x]

  4. Evaporative Emission Canister Purge Tube (2) - Disconnect - Plastic Collar Quick Connect Fitting Service
  5. Positive Crankcase Ventilation Tube (3) - Disconnect - Plastic Collar Quick Connect Fitting Service
  6. Disconnect the electrical connector.
  7. GM5405476

    Air Cleaner Outlet Duct (1) - Remove

  8. GM5135762

    Electrical Connector (1) @ Engine Coolant Temperature Sensor (2) - Disconnect

  9. GM5135894

    Disconnect the electrical connector.

  10. Positive Crankcase Ventilation Hose Connector Bolt (1) - Remove [2x]
  11. Retainer (2) - Unclip [2x]
  12. Positive Crankcase Ventilation Hose (3) - Remove
  13. Positive Crankcase Ventilation Hose Fitting Seal (4) - Remove and DISCARD [2x]
  14. GM5314511

    Retainer Spring (1) - Release

  15. Charge Air Cooler Inlet Air Tube (2) @ Turbocharger (3) - Remove
  16. Disconnect and reposition heated oxygen sensor electrical connector.
  17. GM5309985

    Turbocharger Heat Shield Bolt (1) - Remove [3x]

  18. GM5309997

    Turbocharger Heat Shield (1) - Remove

  19. GM5310138

    Catalytic Converter Heat Shield Bolt (1) - Remove [2x]

  20. Catalytic Converter Heat Shield Nut (2) - Remove
  21. GM5310178

    Catalytic Converter Heat Shield (1) - Remove

  22. GM5393690

    Exhaust Pipe Clamp (1) - Loosen

  23. GM5135656

    Electrical Connector (1) @ Turbocharger Bypass Valve Solenoid (2) - Disconnect

  24. GM5311257

    Electrical Connector (1) @ Turbocharger Wastegate Actuator - Disconnect

  25. Engine Wiring Harness Retainer (2) @ Turbocharger Coolant Feed and Return Pipe - Remove [2x]
  26. GM5124375

    Turbocharger Coolant Feed and Return Pipe Bolt (1) - Remove [2x]

  27. Turbocharger Coolant Feed Hose Clamp (2) - Disengage [2x] - Hose Clamp Replacement Guidelines - Spring Type
  28. GM5124376

    Turbocharger Coolant Feed and Return Pipe Bolt (1) - Remove [2x]

  29. GM5124385

    Turbocharger Coolant Feed and Return Pipe (1) - Remove

  30. Turbocharger Coolant Feed and Return Pipe Gasket (2) - Remove and DISCARD
  31. GM5049439

    Turbocharger Oil Feed Pipe Bolt (1) - Remove [2x]

  32. Turbocharger Oil Feed Pipe Gasket - Remove and DISCARD
  33. GM5049638

    Turbocharger Bolt (3) - Remove and DISCARD [4x]

    34. NOTE:

    The heat shield can slid out from the turbocharger by removing the bolts and repositioning the turbocharger slightly.

  34. Compressor Air Intake Turbocharger (1) - Reposition
  35. Turbocharger Heat Shield (2) - Remove and DISCARD
  36. GM5393690

    Exhaust Pipe Clamp (1) - Remove and DISCARD

  37. Catalytic Converter Gasket - Remove and DISCARD
  38. Clean all sealing surfaces.
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