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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 >> Engine Mount 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. Oil Filler Cap - Remove
  4. GM5839283

    Intake Manifold Cover Bolt (1) - Remove

  5. Intake Manifold Cover (2) - Remove
  6. Oil Filler Cap - Install
  7. GM5861123

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

  8. Radiator Surge Tank Inlet Hose Clip (2) @ Engine Control Module Bracket - Remove
  9. Radiator Surge Tank Inlet Hose Clamp (4) @ Engine Radiator - Disengage - Hose Clamp Replacement Guidelines - Spring Type
  10. Radiator Surge Tank Outlet Pipe (3) - Remove
  11. 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.

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

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

  15. 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).

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

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

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

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

  21. Front End Sheet Metal Cross Brace Bolt- Left Side and Right Side (1) - Remove [6x]
  22. Front Suspension Strut Upper Mounting Nut- Left Side and Right Side (2) - Remove [4x]
  23. Front End Sheet Metal Cross Brace- Left Side and Right Side (3) - Remove [2x]
  24. GM5864667

    Air Cleaner Outlet Duct Clamp (1) - Loosen

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

    Disconnect the 2 mass airflow sensor electrical connectors.

  29. Remove all retainers from the air cleaner assembly and reposition wiring harnesses as necessary.
  30. Air Cleaner Bolt (1) - Remove
  31. Air Cleaner Assembly (2) - 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 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. 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. GM5873866

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

  57. GM5876059

    Turbocharger Heat Shield (1) - Remove

  58. Install the engine support fixture. Engine Support Fixture
  59. Raise and support the vehicle. Lifting and Jacking the Vehicle
  60. GM5874488
    NOTE:

    Left side shown, right side similar.

    Front Wheelhouse Liner Bolt- Left Side and Right Side (1) - Remove [6x]

  61. Front Compartment Air Deflector Bolt- Left Side and Right Side (3) - Remove [6x]
  62. Front Wheelhouse Liner Retainer- Left Side and Right Side (2) - Remove [2x]
  63. GM5874489
    NOTE:

    Left side shown, right side similar.

    Front Compartment Air Deflector- Left Side and Right Side (1) - Remove [2x]

  64. GM5862911

    Front Bumper Fascia Air Deflector Bolt (1) - Remove [4x]

  65. Front Bumper Fascia Air Deflector Retainer (2) - Remove
  66. Support the front cradle shear plate using a suitable jack.
  67. GM5877036

    Front Cradle Shear Plate Bolt (1) - Remove [4x]

  68. Front Cradle Shear Plate Nut (2) - Remove [2x]
  69. Front Crossmember Brace Bolt (3) - Remove [8x]
  70. GM5877073

    Front Wheelhouse Liner Bolt (1) - Remove [2x]

  71. GM5877068

    Position the left and right side wheelhouse liners (1) away from the front cradle sheer plate (2).

  72. Remove the front cradle sheer plate (2) from between the front bumper fascia center air deflector and the driveline and front suspension cradle and lower it from the vehicle.
  73. GM5395705

    Rear Tire Front Air Deflector Bolt- Left Side and Right Side (1) - Remove [4x]

  74. Rear Tire Front Air Deflector- Left Side and Right Side (2) - Remove [2x]
  75. GM5400553

    Rear Wheelhouse Liner Bolt- Left Side (1) - Remove

  76. Underbody Rear Air Deflector Nut- Left Side (2) - Remove [3x]
  77. Underbody Rear Air Deflector Bolt- Left Side (3) - Remove [3x]
  78. Underbody Rear Air Deflector Nut- Left Side (4) - Remove [2x]
  79. Underbody Rear Air Deflector- Left Side (5) - Remove
  80. GM5400642

    Rear Wheelhouse Liner Bolt- Right Side (1) - Remove

  81. Underbody Rear Air Deflector Bolt- Right Side (2) - Remove [3x]
  82. Underbody Rear Air Deflector Nut- Right Side (3) - Remove [3x]
  83. Underbody Rear Air Deflector Nut- Right Side (4) - Remove [2x]
  84. Underbody Rear Air Deflector- Right Side (5) - Remove
  85. GM5400756

    Floor Panel Number 4 Cross Bar Reinforcement Bolt (1) - Remove [6x]

  86. Floor Panel Reinforcement (2) - Remove
  87. GM5865265

    Catalytic Converter Nut (1) - Remove [2x]

  88. GM5865271

    Exhaust Pipe Clamp (1) - Loosen [2x]

  89. GM5406578

    Exhaust Muffler (1) @ Exhaust Intermediate Pipe Insulator-Left Side (2) - Separate [2x]

  90. GM5406632

    Exhaust Muffler (1) @ Exhaust Intermediate Pipe Insulator-Right Side (2) - Separate [2x]

  91. GM5865287

    Electrical Connector (1) - Disconnect

  92. GM5865293

    Electrical Connector (1) - Disconnect

  93. GM5865300
    NOTE:

    The rear bumper fascia is removed for illustration purposes only.

    Exhaust Muffler Hanger Bracket Nut (1) - Remove [4x]

  94. GM5865329

    With the aid of an assistant, remove the exhaust muffler (1).

  95. Catalytic Converter Gasket (2) - Remove and DISCARD
  96. GM5872016

    Catalytic Converter Brace Bracket Nut (1) - Remove [5x]

  97. Catalytic Converter Brace (2) - Remove
  98. GM5873893

    Disconnect the heated oxygen sensor electrical connector.

    99. CAUTION:

    Refer to Heated Oxygen and Oxygen Sensor Caution .

    NOTE:

    The heated oxygen sensor MAY be difficult to remove when the engine temperature is less than 48°C (120°F).

  99. Remove the heated oxygen sensor (1) using a suitable tool.
  100. GM5786730

    Disconnect the heated oxygen sensor electrical connector.

  101. Remove the heated oxygen sensor (1) using a suitable tool.
  102. GM5873921

    Catalytic Converter Nut (1) - Remove [4x]

  103. GM5873937

    Warm Up Three-Way Catalytic Converter (1) - Remove

  104. Turbocharger Exhaust Pipe Gasket (2) - Remove and DISCARD
  105. GM5867016

    Engine Mount Bolt (1) - Remove and DISCARD [2x]

  106. Engine Mount Nut (2) - Remove
  107. GM5867057

    Lift the right side of the engine with the EN-51007  Global Engine Support Fixture to lift the engine mount bracket off of the engine mount (1).

  108. Engine Mount (1) - Remove
  109. GM5867032
    CAUTION:

    Phenolic spacer must be present to prevent galvanic/corrosive reaction and/or excessive temperature conduction between engine mount bracket and engine mount. Replace mount if phenolic spacer is missing or damaged. Failure to ensure phenolic spacer is intact and not damaged can lead to premature failure of engine mount and/or engine mount bracket.

    Inspect the engine mount to ensure the phenolic spacer (1) is in place and not damaged.

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