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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 198 (Engine Mechanical - 3.6L (LF4) - Repair Instructions (3 Of 4)) >> Repair Instructions >> Valve Lifter Replacement - Left Side (Intake) >> 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 charge air cooling system. Refer to Cooling System Draining and Filling (LF4 Static Fill) , or Cooling System Draining and Filling (LF4 GE 47716)
  2. GM5865881

    Plenum Front Panel (1) - Remove - Plenum Front Panel Removal and Installation (with Blackwing) , or Plenum Front Panel Removal and Installation (without Blackwing)

  3. GM5864524

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

  4. Radiator Air Upper Baffle Bolt (2) - Remove [2x]
  5. Radiator Air Upper Baffle (3) - Remove
  6. GM5839407

    Front End Sheet Metal Cross Brace Bolt- Left Side (1) - Remove [3x]

  7. Front Suspension Strut Upper Mounting Nut- Left Side (2) - Remove [2x]
  8. Release the engine wire harness retainers from the front end sheet metal cross brace.
  9. Front End Sheet Metal Cross Brace- Left Side (3) - Remove
  10. GM5872932

    Front End Sheet Metal Diagonal Brace Nut- Left Side (1) - Remove

  11. Front End Sheet Metal Cross Brace Bolt- Left Side (2) - Remove
  12. Front End Sheet Metal Diagonal Brace- Left Side (3) - Remove
  13. Oil Filler Cap - Remove
  14. GM5839283

    Intake Manifold Cover Bolt (1) - Remove

  15. Intake Manifold Cover (2) - Remove
  16. Install the oil filler cap after removal of the intake manifold cover to prevent debris from falling into the engine.
  17. GM5846598
    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).

  18. Positive Crankcase Ventilation Fresh Air Tube (2) - Remove and DISCARD
  19. GM5864667

    Air Cleaner Outlet Duct Clamp (1) - Loosen

  20. Air Cleaner Outlet Duct (2) - Reposition
  21. Air Cleaner Outlet Duct Clamp (3) - Loosen
  22. Auxiliary Air Cleaner Outlet Duct (4) - Reposition
  23. GM5862960

    Disconnect the electrical connectors.

  24. Remove all retainers from the air cleaner assembly and reposition wiring harnesses as necessary.
  25. Air Cleaner Bolt (1) - Remove
  26. Air Cleaner Assembly (2) - Remove
  27. GM5860356

    Turbocharger Wastegate Actuator Vacuum Tank Solenoid Valve Tube (1) - Disconnect and reposition - Plastic Collar Quick Connect Fitting Service

  28. GM5860357

    Charge Air Bypass Valve Hose Clamp (1) - Loosen

  29. Charge Air Bypass Valve Hose (2) - Reposition
  30. Retainer Spring (3) - Disengage
  31. GM5860358

    Auxiliary Air Cleaner Outlet Duct (1) - Remove

  32. GM5840576
    NOTE:

    Charge air bypass valve can stay connect to the charge air cooler inlet pipe (1).

    Charge Air Cooler Inlet Air Tube Bolt (1) - Remove [2x]

  33. Charge Air Bypass Valve Tube Connector Clamp (2) - Loosen
  34. Charge Air Cooler Inlet Pipe (3) - Remove
  35. Charge Air Cooler Inlet Air Tube Seal (4) - Remove and DISCARD
  36. GM5861039

    Air Cleaner Outlet Duct Bracket Bolt (1) - Remove [2x]

  37. Retainer (2) - Remove [2x]
  38. Oil Level Indicator Tube (3) - Reposition
  39. GM5861042

    Air Cleaner Outlet Resonator Bracket (1) - Remove

  40. GM5854975

    Charge Air Cooler Coolant Hose Retainer (1) @ Charge Air Cooler Coolant Outlet Pipe Bracket - Remove [2x]

  41. Charge Air Cooler Coolant Hose Clamp (3) - Disengage - Hose Clamp Replacement Guidelines - Spring Type
  42. Charge Air Cooler Coolant Hose (2) @ Supercharger Water Manifold - Reposition
  43. GM5860462

    Charge Air Cooler Coolant Hose Retainer (3) @ Charge Air Cooler Coolant Outlet Pipe Bracket - Remove

  44. Charge Air Cooler Coolant Hose Clamp (2) - Disengage - Hose Clamp Replacement Guidelines - Spring Type
  45. Charge Air Cooler Coolant Hose (1) @ Supercharger Water Manifold - Reposition
  46. GM5842421

    Evaporative Emission Canister Purge Tube (1) - Disconnect [2x] - Plastic Collar Quick Connect Fitting Service

  47. Evaporative Emission Canister Purge Tube (1) - Remove
  48. GM5839336

    Disconnect the electrical connectors.

  49. Turbocharger Wastegate Actuator Vacuum Tank Bolt (3) - Remove [2x]
  50. GM5839386

    Disconnect the electrical connectors.

  51. Turbocharger Wastegate Actuator Vacuum Tank Bolt (3) - Remove [2x]
  52. GM5839308

    Turbocharger Wastegate Actuator Vacuum Tank Solenoid Valve Tube (3) @ Auxiliary Air Cleaner Outlet Duct - Disconnect - Plastic Collar Quick Connect Fitting Service

  53. GM4052248

    Charge Air Bypass Valve Vacuum Tank Tube (3) - Disconnect - Plastic Collar Quick Connect Fitting Service

  54. GM4057362

    Turbocharger Wastegate Actuator Vacuum Source Tube (1) @ Vacuum Pump - Disconnect - Plastic Collar Quick Connect Fitting Service

  55. GM4057385

    Charge Air Bypass Valve Tube (1) @ Charge Air Bypass Valve - Disconnect - Plastic Collar Quick Connect Fitting Service

  56. GM4057453

    Electrical Connector (1) @ Charge Air Bypass Valve (2) - Disconnect

  57. GM4057618

    Charge Air Bypass Valve Tube (1) @ Charge Air Bypass Valve - Disconnect - Plastic Collar Quick Connect Fitting Service

  58. GM4057709

    Electrical Connector (1) @ Charge Air Bypass Valve (2) - Disconnect

  59. GM4057738

    Turbocharger Wastegate Actuator Vacuum Tank Bolt (1) - Remove [2x]

  60. Turbocharger Wastegate Actuator Vacuum Tank (2) - Remove
  61. GM5871728

    Charge Air Cooler Coolant Hose Clamp (1) - Disengage - Hose Clamp Replacement Guidelines - Spring Type

  62. Charge Air Cooler Coolant Hose (2) - Remove
  63. Charge Air Cooler Coolant Hose Clamp (3) - Disengage - Hose Clamp Replacement Guidelines - Spring Type
  64. Charge Air Cooler Coolant Hose (4) - Remove
  65. GM5840540
    NOTE:

    Charge air bypass valve can stay connect to the charge air cooler inlet pipe (1).

    Charge Air Cooler Inlet Air Tube Bolt (1) - Remove [2x]

  66. Charge Air Bypass Valve Tube Connector Clamp (2) - Loosen
  67. Charge Air Cooler Inlet Pipe (3) - Remove
  68. Charge Air Cooler Inlet Air Tube Seal (4) - Remove and DISCARD
  69. GM5862662
    NOTE:
    • Some components not shown for graphic clarity.
    • Supercharger water manifold can stay attached to charger air cooler cover.

    Disconnect the electrical connector.

  70. Charge Air Cooler Bolt (1) - Remove [2x]
  71. Charge Air Cooler Cover Bolt (2) - Remove [12x]
  72. GM5862663
    NOTE:
    • Some components not shown for graphic clarity.
    • Supercharger water manifold can stay attached to charger air cooler cover.

    Charge Air Cooler Cover (1) - Remove

  73. Intake Manifold Gasket (2) - Remove and DISCARD
  74. Charge Air Cooler Cover Seal (3) - Remove and DISCARD [2x]
  75. GM4044046

    Engine Rear Noise Shield Bolt (1) - Remove

  76. GM5869276

    Engine Rear Noise Shield Bolt (1) - Remove [2x]

  77. Wiring Harness Retainer (2) - Unclip [3x]
  78. Wiring Harness (3) - Reposition
  79. GM4044075

    Fuel Pipe Shield (1) - Remove

  80. GM5864681

    Disconnect all electrical connectors.

  81. Lower Intake Manifold Bolt (1) - Remove [6x]
  82. GM5864683

    Intake Manifold (1) - Remove

  83. Lower Intake Manifold Gasket (2) - Remove and DISCARD [6x]
  84. GM5861168
    NOTE:

    Replace only the components necessary to complete the repair.

    Disconnect the 3 ignition coil electrical connectors.

  85. Ignition Coil Bolt (1) - Remove [3x]
  86. Ignition Coil (2) - Remove [3x]
  87. GM5869074
    NOTE:

    Some components not shown for graphic clarity.

    Electrical Connector (1) - Disconnect

  88. Engine Wiring Harness Retainer (2) - Remove [10x]
  89. Engine Wiring Harness (3) - Reposition
  90. GM5869075
    NOTE:

    Some components not shown for graphic clarity.

    Camshaft Housing Cover Bolt (1) - Remove [15x]

  91. GM5869076
    NOTE:

    Some components not shown for graphic clarity.

    Camshaft Cover (1) - Remove

  92. Camshaft Cover Seal (2) - Remove and DISCARD
  93. GM5869085

    Install the 3 EN-46101  Spark Plug Tube Seal Guides (1).

  94. GM5838611

    Disconnect the electrical connector.

  95. Camshaft Position Sensor Bolt (1) - Remove
  96. Camshaft Position Sensor (2) - Remove
  97. GM5838696

    Disconnect the electrical connector.

  98. Camshaft Position Sensor Bolt (1) - Remove
  99. Camshaft Position Sensor (2) - Remove
  100. GM5839194

    Disconnect the electrical connector.

  101. Camshaft Position Actuator Solenoid Valve Bolt (1) - Remove
  102. Camshaft Position Actuator Solenoid Valve (2) - Remove
  103. GM5839247

    Disconnect the electrical connector.

  104. Camshaft Position Actuator Solenoid Valve Bolt (1) - Remove
  105. Camshaft Position Actuator Solenoid Valve (2) - Remove
  106. GM5893370
    NOTE:

    This will put the camshafts in a rested position and aid in removal.

    Rotate the engine clockwise using the crankshaft dampener retaining bolt until laser etched flats on both camshafts are facing up (1).

  107. GM5893391
    CAUTION:

    Refer to Torque Reaction Against Timing Drive Chain Caution .

    NOTE:

    Do NOT remove or back out the camshaft position actuator bolt. Simply break them loose from their fully-torqued position. The position actuators must stay firmly attached until the retaining tools are in place, but they should be broken loose while the chain is still tight and in position.

    Use an opened end wrench on the cast hexagonal portion (1) of the camshaft to hold them in place while breaking the camshaft position actuator bolt (2) loose to prevent camshaft rotation.

  108. Camshaft Position Actuator Bolt (2) - Loosen
  109. GM5893492
    NOTE:

    Marking the relationship of the timing chain to actuators is critical for timing alignment.

    Clean off any oil residue on camshaft position actuators.

  110. Mark the position of the chain to the camshaft position actuators (1).
  111. GM5892401

    Camshaft Bearing Cap Bolt (1) - Remove [4x]

  112. Camshaft Bearing Cap (2) - Remove
  113. GM5896382

    Unscrew the EN-48313  Timing Chain Retention Tool so that the legs of the tool are retracted.

  114. Insert the EN-48313  Timing Chain Retention Tool between the camshaft actuators, rearward of the timing chain until the bottom line that is scribed in the body of the tool (2) is adjacent to the top surface of the cylinder head (1). This is the approximate installed position.
  115. GM5896400
    NOTE:

    Some components not shown for graphic clarity.

    Ensure that the feet (4) on the legs of the tool are facing the front of the engine.

  116. Partially expand the legs (1, 4) of the EN-48313  Timing Chain Retention Tool by turning the T-shaped handle clockwise.
  117. Insert the leg of the tool (1) behind the timing chain guide (2).
  118. Continue expanding the EN-48313  Timing Chain Retention Tool until the legs (1, 4) contact the timing chain. Do not tighten at this time.
  119. Ensure that the foot (3) of the EN-48313  Timing Chain Retention Tool is engaged into one of the link pockets to prevent tool slippage during tightening of the EN-48313  Timing Chain Retention Tool.
  120. Hand tighten the EN-48313  Timing Chain Retention Tool.
  121. GM5896790
    CAUTION:

    Do not pry against the face of the camshaft position actuators or the position actuator retaining bolts as the position actuators will be damaged.

    Position a suitable tool between a camshaft cap and camshaft lobe (1). Carefully move/pry the camshaft as far as possible toward the rear/flywheel end of the engine.

  122. GM5896809

    Camshaft Position Actuator Bolt (1) - Remove

  123. GM5896819

    Slide the camshaft position actuator (1) forward and off the end of the intake camshaft.

  124. GM5896820

    Tilt the camshaft position actuator (1) forward and out/away from the engine.

  125. GM5898233

    Camshaft Bearing Cap Bolt (1) - Remove [6x]

  126. Camshaft Bearing Cap (2) - Remove [3x]
  127. GM5898234

    Exhaust Camshaft (1) - Remove

  128. GM5898496

    Valve Rocker Arm (1) - Remove [6x]

  129. GM5907710

    Valve Lifter (1) - Remove [6x]

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