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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 >> Intake Manifold 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 charge air cooling system. Refer to Cooling System Draining and Filling (LF4 Static Fill) , or Cooling System Draining and Filling (LF4 GE 47716)
  2. Oil Filler Cap - Remove
  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. GM5842421

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

  7. Evaporative Emission Canister Purge Tube (1) - Remove
  8. GM5839336

    Disconnect the turbocharger wastegate regulator solenoid valve electrical connector.

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

    Disconnect the turbocharger wastegate regulator solenoid valve electrical connector.

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

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

  13. GM4052248

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

  14. GM4057362

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

  15. GM4057385

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

  16. GM4057453

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

  17. GM4057618

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

  18. GM4057709

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

  19. GM4057738

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

  20. Turbocharger Wastegate Actuator Vacuum Tank (2) - Remove
  21. GM5871728

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

  22. Charge Air Cooler Coolant Hose (2) - Remove
  23. Charge Air Cooler Coolant Hose Clamp (3) - Disengage - Hose Clamp Replacement Guidelines - Spring Type
  24. Charge Air Cooler Coolant Hose (4) - Remove
  25. GM5871741

    Charge Air Cooler Coolant Manifold Bolt (1) - Remove [4x]

  26. GM5871751

    Supercharger Water Manifold (1) - Remove

  27. Supercharger Water Manifold Gasket (2) - Remove and DISCARD [2x]
  28. Charge Air Cooler Coolant Pipe Seal (3) - Remove and DISCARD [4x]
  29. GM4182819

    Charge Air Bypass Valve Hose Clamp (1) - Loosen

  30. Charge Air Bypass Valve Tube Connector Clamp (2) - Loosen
  31. Charge Air Bypass Valve (3) - Remove
  32. GM5840576

    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. GM4182652

    Charge Air Bypass Valve Hose Clamp (1) - Loosen

  37. Charge Air Bypass Valve Tube Connector Clamp (2) - Loosen
  38. Charge Air Bypass Valve (3) - Remove
  39. GM5840540

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

  40. Charge Air Bypass Valve Tube Connector Clamp (2) - Loosen
  41. Charge Air Cooler Inlet Pipe (3) - Remove
  42. Charge Air Cooler Inlet Air Tube Seal (4) - Remove and DISCARD
  43. GM5862662
    NOTE:

    Some components not shown for graphic clarity.

    Disconnect the electrical connector.

  44. Charge Air Cooler Bolt (1) - Remove [2x]
  45. Charge Air Cooler Cover Bolt (2) - Remove [12x]
  46. GM5862663
    NOTE:

    Some components not shown for graphic clarity.

    Charge Air Cooler Cover (1) - Remove

  47. Intake Manifold Gasket (2) - Remove and DISCARD
  48. Charge Air Cooler Cover Seal (3) - Remove and DISCARD [2x]
  49. GM5862841
    NOTE:

    Some components not shown for graphic clarity.

    Positive Crankcase Ventilation Tube Connector (1) - Disconnect [2x] - Plastic Collar Quick Connect Fitting Service

  50. Positive Crankcase Ventilation Foul Air Tube (2) - Remove
  51. GM4044046

    Engine Rear Noise Shield Bolt (1) - Remove

  52. GM5869276

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

  53. Retainer (2) - Unclip [3x]
  54. Wiring Harness (3) - Reposition
  55. GM4044075

    Fuel Pipe Shield (1) - Remove

  56. GM5864681

    Disconnect all electrical connectors.

  57. Lower Intake Manifold Bolt (1) - Remove [6x]
  58. GM5864683

    Intake Manifold (1) - Remove

  59. Lower Intake Manifold Gasket (2) - Remove and DISCARD [6x]
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