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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 131 (Engine Mechanical - 3.6L (LF4) - Repair Instructions (1 Of 4)) >> Repair Instructions >> Compressor Air Intake Turbocharger Replacement - Right Side >> 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. Disconnect the negative battery cable. Battery Negative Cable Disconnection and Connection
  2. Drain the cooling system. Refer to Cooling System Draining and Filling (LF4 Static Fill) , or Cooling System Draining and Filling (LF4 GE 47716)
  3. GM5839283

    Intake Manifold Cover Bolt (1) - Remove

  4. Intake Manifold Cover (2) - Remove
  5. Install the oil filler cap after removal of the intake manifold cover to prevent debris from falling into the engine.
  6. GM5861123

    Radiator Surge Tank Inlet Hose Clamp (1) @ Radiator Surge Tank Inlet Hose - Disengage - Hose Clamp Replacement Guidelines - Spring Type

  7. Radiator Surge Tank Inlet Hose Clip (2) @ Engine Control Module Bracket - Remove
  8. Radiator Surge Tank Inlet Hose Clamp (4) @ Engine Radiator - Disengage - Hose Clamp Replacement Guidelines - Spring Type
  9. Radiator Surge Tank Outlet Pipe (3) - Remove
  10. GM5839234
    CAUTION:

    Always turn the ignition off when installing or removing the ECM connectors in order to prevent damage to the components.

    CAUTION:
    • Turn the ignition OFF when installing or removing the control module connectors and disconnecting or reconnecting the power to the control module in order to prevent internal control module damage.
    • Control module damage may result when the metal case contacts battery voltage. DO NOT contact the control module metal case with battery voltage when servicing a control module, using battery booster cables, or when charging the vehicle battery.
    • In order to prevent any possible electrostatic discharge damage to the control module, do no touch the connector pins or the soldered components on the circuit board.
    • Remove any debris from around the control module connector surfaces before servicing the control module. Inspect the control module connector gaskets, and ensure that the gaskets are installed correctly. The gaskets prevent contaminant intrusion into the control module.

    Disconnect the electrical connectors.

  11. Use a suitable tool to release the locking tabs securing the engine control module (1) to the engine control module bracket.
  12. Engine Control Module (1) - Remove
  13. GM5839232

    Engine Control Module Bracket Bolt (1) - Remove [3x]

  14. GM5839233

    Use a suitable tool to release the locking tab and remove the transmission control module (1) by sliding it out from the engine control module bracket (2).

  15. Engine Control Module Bracket (2) - Remove
  16. GM5864524

    Radiator Air Upper Baffle Retainer (1) - Remove [5x]

  17. Radiator Air Upper Baffle Bolt (2) - Remove [2x]
  18. Radiator Air Upper Baffle- Upper (3) - Remove
  19. GM5839407

    Remove all wiring harness retainers from the front end sheet metal cross brace.

    20. NOTE:

    Left side shown, right side similar.

  20. Front End Sheet Metal Cross Brace Bolt- Right Side (1) - Remove [3x]
    21. NOTE:

    Left side shown, right side similar.

  21. Front Suspension Strut Upper Mounting Nut- Right Side (2) - Remove [2x]
    22. NOTE:

    Left side shown, right side similar.

  22. Front End Sheet Metal Cross Brace- Right Side (3) - Remove
  23. GM5864667

    Air Cleaner Outlet Duct Clamp (1) - Loosen

  24. Air Cleaner Outlet Duct (2) - Reposition
  25. Air Cleaner Outlet Duct Clamp (3) - Loosen
  26. Auxiliary Air Cleaner Outlet Duct (4) - Reposition
  27. GM5862960

    Disconnect the 2 mass airflow sensor electrical connectors.

  28. Remove all retainers from the air cleaner assembly and reposition wiring harnesses as necessary.
  29. Air Cleaner Bolt (1) - Remove
  30. Air Cleaner Assembly (2) - Remove
  31. Oil Filler Cap - Remove
  32. GM5845622

    Clamp (1) - Disengage [2x] - Hose Clamp Replacement Guidelines - Spring Type

  33. Charge Air Bypass Valve Vacuum Tank Tube (2) - Disconnect - Plastic Collar Quick Connect Fitting Service
  34. Charge Air Bypass Valve Vacuum Tank Tube (2) - Remove
  35. GM5854972

    Clamp (1) - Disengage - Hose Clamp Replacement Guidelines - Spring Type

  36. Turbocharger Wastegate Actuator Vacuum Source Tube (2) - Disconnect - Plastic Collar Quick Connect Fitting Service
  37. Turbocharger Wastegate Actuator Vacuum Source Tube (2) - Remove
  38. GM5854948
    CAUTION:

    The Positive Crankcase Ventilation (PCV) line is tamper resistant and must always be replaced once it is removed. The fittings connected to the PCV line must also be replaced if they are damaged when the PCV line is removed. To reduce the risk of damage to the fittings, use a suitable cutting tool and carefully cut the connections away.

    Using a suitable cutting tool, carefully cut the 2 positive crankcase ventilation tube connectors (1).

  39. Positive Crankcase Ventilation Foul Air Tube (2) - Remove and DISCARD
  40. GM5860354

    Charge Air Bypass Valve Hose Clamp (1) - Loosen

  41. Charge Air Bypass Valve Hose (2) - Reposition
  42. Retainer Spring (4) - Disengage
  43. GM5860355

    Air Cleaner Outlet Duct (1) - Remove

  44. GM5875503

    Radiator Outlet Hose Clamp (1) @ Radiator Outlet Pipe - Disengage - Hose Clamp Replacement Guidelines - Spring Type

  45. Radiator Outlet Hose (2) @ Radiator Outlet Pipe - Remove
  46. GM5875514

    Radiator Outlet Pipe Bolt (1) - Remove

  47. GM5875715

    Heater Inlet Hose Retainer (1) - Disengage

  48. Heater Inlet Hose (2) @ Heater Core - Disconnect and reposition
  49. Heater Outlet Hose Clamp (3) @ Auxiliary Heater Inlet Hose Tee - Disengage - Hose Clamp Replacement Guidelines - Spring Type
  50. Heater Outlet Hose (4) @ Auxiliary Heater Inlet Hose Tee - Disconnect and reposition
  51. GM5875536

    Wiring Harness Retainer (1) - Remove [2x]

  52. GM5875557

    Radiator Outlet Pipe Bolt (1) - Remove

  53. Radiator Outlet Pipe Bolt (2) - Remove
  54. GM5875573

    Radiator Outlet Pipe (1) - Remove

  55. Radiator Outlet Pipe Seal (2) - Remove and DISCARD
  56. GM5873832

    Retaining Clip (1) - Remove

  57. GM5873812

    Turbocharger Coolant Feed and Return Pipe Bolt (1) - Remove

  58. Turbocharger Coolant Feed and Return Pipe Gasket (2) - Remove and DISCARD [2x]
  59. Turbocharger Coolant Return Pipe (3) - Remove
  60. GM5873866

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

  61. GM5876059

    Turbocharger Heat Shield (1) - Remove

  62. GM5875574
    NOTE:

    Some components not shown for graphic clarity.

    Using a suitable tool, remove the turbocharger oil feed pipe fitting clip (1).

  63. Turbocharger Oil Feed Pipe Bolt (2) - Remove
  64. Turbocharger Oil Feed Pipe Washer (3) - Remove and DISCARD [2x]
  65. Turbocharger Oil Feed Pipe (4) - Remove
  66. GM5892103

    Turbocharger Coolant Feed and Return Pipe Bolt (1) - Remove

  67. Turbocharger Coolant Feed and Return Pipe Gasket (2) - Remove and DISCARD [2x]
  68. Turbocharger Coolant Feed Pipe (3) @ Compressor Air Intake Turbocharger - Separate
  69. GM5875517
    NOTE:

    Some components not shown for graphic clarity.

    Turbocharger Oil Return Pipe Bolt (1) - Remove [4x]

  70. GM5875520
    NOTE:

    Some components not shown for graphic clarity.

    Turbocharger Oil Return Pipe (1) - Remove

  71. Turbocharger Oil Return Pipe Gasket (2) - Remove and DISCARD [2x]
  72. GM5880448

    Turbocharger Bolt (1) - Remove [4x]

  73. GM5880449

    Compressor Air Intake Turbocharger (1) - Remove

  74. Turbocharger Gasket (2) - Remove and DISCARD
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