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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 >> Crankshaft Front Oil Seal 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 cooling system. Refer to Cooling System Draining and Filling (LF4 Static Fill) , or Cooling System Draining and Filling (LF4 GE 47716)
  2. Disconnect the negative battery cable. Battery Negative Cable Disconnection and Connection
  3. GM5861123

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

  4. Radiator Surge Tank Inlet Hose Clip (2) @ Engine Control Module Bracket - Remove
  5. Radiator Surge Tank Inlet Hose Clamp (4) @ Engine Radiator - Disengage - Hose Clamp Replacement Guidelines - Spring Type
  6. Radiator Surge Tank Outlet Pipe (3) - Remove
  7. 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.

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

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

  11. 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).

  12. Engine Control Module Bracket (2) - Remove
  13. GM5864524

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

  14. Radiator Air Upper Baffle Bolt (2) - Remove [2x]
  15. Radiator Air Upper Baffle- Upper (3) - Remove
  16. GM5839407
    NOTE:

    Left side shown, right side similar.

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

  17. Front End Sheet Metal Cross Brace Bolt- Left Side and Right Side (1) - Remove [6x]
  18. Front Suspension Strut Upper Mounting Nut- Left Side and Right Side (2) - Remove [4x]
  19. Front End Sheet Metal Cross Brace- Left Side and Right Side (3) - Remove [2x]
  20. GM5864667

    Air Cleaner Outlet Duct Clamp (1) - Loosen

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

    Disconnect the 2 mass airflow sensor electrical connectors.

  25. Remove all retainers from the air cleaner assembly and reposition wiring harnesses as necessary.
  26. Air Cleaner Bolt (1) - Remove
  27. Air Cleaner Assembly (2) - Remove
  28. GM5854879
    NOTE:
    • Observe the location and routing of the accessory drive primary belt to ensure proper installation.
    • Some components not shown for graphic clarity.

    Use a suitable tool to rotate the drive belt tensioner (1) counterclockwise to relieve tension from the accessory drive primary belt (2).

  29. Remove the accessory drive primary belt (2) from the pulleys and tensioner (1).
  30. Slowly release tension on the drive belt tensioner (1).
  31. Clean and inspect the drive belt surfaces of all the pulleys.
  32. GM5865285

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

  33. Radiator Outlet Hose Clamp (2) - Disengage - Hose Clamp Replacement Guidelines - Spring Type
  34. Radiator Outlet Hose (3) @ Engine Oil Cooler Adapter - Remove
  35. Radiator Outlet Hose (4) @ Radiator Outlet Pipe - Remove
  36. GM5866913

    Radiator Outlet Hose Clamp (2) - Disengage - Hose Clamp Replacement Guidelines - Spring Type

  37. Radiator Outlet Hose (1) @ Engine Radiator - Remove
  38. GM5866915

    Radiator Outlet Hose Clip (1) @ Radiator Outlet Hose Bracket - Remove

  39. Radiator Outlet Hose Clip (2) @ Engine Cooler Fan - Remove
  40. GM5422180
    NOTE:

    Left side shown, right side similar.

    Front Wheelhouse Liner- Right Side (3) - Remove - Front Wheelhouse Liner Replacement , or Front Wheelhouse Liner Replacement (Blackwing)

  41. GM5866945

    Radiator Outlet Hose Clip (1) @ Charge Air Cooler Bracket - Remove

  42. Using an appropriate tool, disengage the radiator outlet hose retainer (3).
  43. Radiator Outlet Hose (2) @ Charge Air Cooler- Right Side - Remove
  44. GM5866934

    Radiator Outlet Hose (1) - Remove

  45. GM5874488
    NOTE:

    Left side shown, right side similar.

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

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

    Left side shown, right side similar.

    Front Compartment Air Deflector- Left Side and Right Side (1) - Remove

  49. GM5862911

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

  50. Front Bumper Fascia Air Deflector Retainer (2) - Remove
  51. Support the front cradle shear plate using a suitable jack.
  52. GM5877036

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

  53. Front Cradle Shear Plate Nut (2) - Remove [2x]
  54. Front Crossmember Brace Bolt (3) - Remove [8x]
  55. GM5877073

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

  56. GM5877068

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

  57. 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.
  58. GM5338404

    Assemble the EN-52287  Balancer Holder Kit (1).

  59. GM5338407

    EN-956-1  Extension Handle (1) @ EN-52287  Balancer Holder Kit (2) - Install

  60. GM5162399
    NOTE:

    Some components not shown for graphic clarity.

    Install the EN-52287  Balancer Holding Kit (1) and the EN-956 - 1  Extension Bar (2) to the crankshaft balancer (3).

  61. GM5162403
    NOTE:

    Some components not shown for graphic clarity.

    Crankshaft Balancer Bolt (1) - Remove and DISCARD

  62. Remove the EN-52287  Balancer Holding Kit and the EN-956 - 1  Extension Bar.
  63. GM5162404
    NOTE:

    Some components not shown for graphic clarity.

    Install the J 24420 - C  Harmonic Balancer Puller (1) and the J 38416 - 2  Crankshaft Button (2).

  64. Use tool adjustment to release the crankshaft balancer (3).
  65. Once the crankshaft balancer (3) has released, remove the J 24420 - C  Harmonic Balancer Puller (1) and the J 38416 - 2  Crankshaft Button (2).
  66. GM5873722
    NOTE:

    Some components not shown for graphic clarity.

    Crankshaft Balancer (1) - Remove

  67. GM5873765

    Using a suitable tool, remove and DISCARD the crankshaft front oil seal (1).

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