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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 47 (Exhaust System) >> Repair Instructions >> Turbocharger Heat Shield Replacement - Right Side (LF4) >> Removal Procedure

Removal Procedure

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  1. Disconnect the negative battery cable. Battery Negative Cable Disconnection and Connection
  2. 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 (L3B Static Fill) , or Cooling System Draining and Filling (L3B GE 47716) , or Cooling System Draining and Filling (LSY with V03 GE 47716) , or Cooling System Draining and Filling (LF4 Static Fill) , or Cooling System Draining and Filling (LF4 GE 47716)
  3. GM5839283Courtesy of GENERAL MOTORS COMPANY

    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. GM5861123Courtesy of GENERAL MOTORS COMPANY

    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. GM5839234Courtesy of GENERAL MOTORS COMPANY
    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 to the engine control module bracket.
  12. Engine Control Module (1) - Remove
  13. GM5839232Courtesy of GENERAL MOTORS COMPANY

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

  14. GM5839233Courtesy of GENERAL MOTORS COMPANY

    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. GM5864524Courtesy of GENERAL MOTORS COMPANY

    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. GM5839407Courtesy of GENERAL MOTORS COMPANY

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

  20. Front End Sheet Metal Cross Brace Bolt- Left Side and Right Side (1) - Remove [6x]
  21. Front Suspension Strut Upper Mounting Nut- Left Side and Right Side (2) - Remove [4x]
  22. Front End Sheet Metal Cross Brace- Left Side and Right Side (3) - Remove [2x]
  23. GM5864667Courtesy of GENERAL MOTORS COMPANY

    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. GM5862960Courtesy of GENERAL MOTORS COMPANY

    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. GM5845622Courtesy of GENERAL MOTORS COMPANY

    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. GM5854972Courtesy of GENERAL MOTORS COMPANY

    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. GM5854948Courtesy of GENERAL MOTORS COMPANY
    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. GM5860354Courtesy of GENERAL MOTORS COMPANY

    Charge Air Bypass Valve Hose Clamp (1) - Loosen

  41. Charge Air Bypass Valve Hose (2) - Reposition
  42. Retainer Spring (4) - Disengage
  43. GM5860355Courtesy of GENERAL MOTORS COMPANY

    Air Cleaner Outlet Duct (1) - Remove

  44. GM5875503Courtesy of GENERAL MOTORS COMPANY

    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. GM5875514Courtesy of GENERAL MOTORS COMPANY

    Radiator Outlet Pipe Bolt (1) - Remove

  47. GM5875715Courtesy of GENERAL MOTORS COMPANY

    Heater Inlet Hose Retainer (1) - Disengage

  48. Heater Inlet Hose (2) @ Heater Core - Disconnect and repositionRemove
  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. GM5875536Courtesy of GENERAL MOTORS COMPANY

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

  52. GM5875557Courtesy of GENERAL MOTORS COMPANY

    Radiator Outlet Pipe Bolt (1) - Remove

  53. Radiator Outlet Pipe Bolt (2) - Remove
  54. GM5875573Courtesy of GENERAL MOTORS COMPANY

    Radiator Outlet Pipe (1) - Remove

  55. Radiator Outlet Pipe Seal (2) - Remove and DISCARD
  56. GM5873866Courtesy of GENERAL MOTORS COMPANY

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

  57. GM5876059Courtesy of GENERAL MOTORS COMPANY

    Turbocharger Heat Shield (1) - Remove

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