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Home >> Cadillac >> 2021 >> CT4 Sport, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 97 (Frame And Underbody) >> Repair Instructions >> Drivetrain and Front Suspension Cradle Replacement (AWD) >> 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.
NOTE:

Vehicle alignment is not required if the cradle is being lowered or dropped to perform another procedure. This vehicle is equipped with a cradle to body aligning feature: cradle to body through holes or self-aligning pins that are part of the cradle or body. Only align if replacing the cradle with a NEW part and transferring components.

  1. Install the engine support fixture.
  2. GM5474215Courtesy of GENERAL MOTORS COMPANY

    Engine Mount Nut-Left Side (1) - Remove

  3. GM5474242Courtesy of GENERAL MOTORS COMPANY

    Engine Mount Nut-Right Side (1) - Remove

  4. Raise and support the vehicle. Lifting and Jacking the Vehicle
  5. GM5407645Courtesy of GENERAL MOTORS COMPANY

    Front Bumper Fascia Center Air Deflector Bolt (1) - Remove [10x]

  6. GM5468709Courtesy of GENERAL MOTORS COMPANY

    Front Bumper Fascia Air Deflector Screw (1) - Remove [3x]

  7. GM5397986Courtesy of GENERAL MOTORS COMPANY

    Front Bumper Fascia Center Air Deflector Bolt (1) - Remove [5x]

  8. Front Bumper Fascia Center Air Deflector Retainer (2) - Remove [2x]
  9. GM5407648Courtesy of GENERAL MOTORS COMPANY

    Pull the front bumper fascia center air deflector (1) rearward and down from the front bumper fascia.

  10. GM5397993Courtesy of GENERAL MOTORS COMPANY

    Front Wheelhouse Liner Bolt (1) - Remove

  11. Engine Front Splash Shield Retainer (2) - Remove
  12. Engine Front Splash Shield Bolt (3) - Remove
  13. GM5398000Courtesy of GENERAL MOTORS COMPANY

    Front Wheelhouse Liner Bolt (3) - Remove

  14. Engine Front Splash Shield Retainer (2) - Remove
  15. Engine Front Splash Shield Bolt (1) - Remove
  16. GM5398001Courtesy of GENERAL MOTORS COMPANY

    Front Compartment Air Deflector Bolt (1) - Remove [6x]

  17. GM5398004Courtesy of GENERAL MOTORS COMPANY

    Front Compartment Air Deflector - (1) Remove

  18. GM5330508Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Do NOT allow the ball stud to rotate while loosening the nut.

    Front Lower Control Arm Ball Stud Nut (1) - Loosen

  19. GM5330510Courtesy of GENERAL MOTORS COMPANY

    Using the CH-42188-B  Ball Joint Separator (1), separate the front lower control rear link from the steering knuckle.

  20. GM5330516Courtesy of GENERAL MOTORS COMPANY

    Front Lower Control Arm Ball Stud Nut (1) - Remove

  21. Remove the front lower control rear link from the steering knuckle.
  22. GM5511919Courtesy of GENERAL MOTORS COMPANY

    Front Lower Control Arm Rear Nut (1) - Remove

  23. Front Lower Control Arm Rear Bolt (2) - Remove and DISCARD
  24. Front Lower Control Rear Link (3) - Remove
  25. GM5330385Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Do NOT allow the ball stud to rotate while loosening the nut.

    Front Lower Control Arm Ball Stud Nut (1) - Loosen

  26. GM5330386Courtesy of GENERAL MOTORS COMPANY

    Using the CH-42188-B  Ball Joint Separator (1), separate the front lower control front link from the steering knuckle.

  27. GM5330387Courtesy of GENERAL MOTORS COMPANY

    Front Lower Control Arm Ball Stud Nut (1) - Remove

  28. GM5511910Courtesy of GENERAL MOTORS COMPANY

    Front Lower Control Arm Front Nut (1) - Remove

  29. Front Lower Control Arm Front Bolt (2) - Remove and DISCARD
  30. GM5330389Courtesy of GENERAL MOTORS COMPANY

    Front Lower Control Front Link (1) - Remove

  31. GM5479740Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

    Loosen the left and right steering linkage outer tie rod nuts (1).

  32. GM5474571Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Do not attempt to disconnect a steering linkage joint by driving a wedge between the joint and the attached part. Seal damage may result which will cause premature failure of the joint.

    NOTE:

    Some components not shown for graphic clarity.

    Using the CH-42188-B  Ball Joint Separator (1), separate the left and right steering linkage outer tie rods (2) from the left and right steering knuckles.

  33. GM5420203Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

    Remove the left and right steering linkage outer tie rod nuts (1).

  34. GM5420204Courtesy of GENERAL MOTORS COMPANY

    Separate the left and right steering linkage outer tie rods (1) from the left and right steering knuckles.

  35. GM5326435Courtesy of GENERAL MOTORS COMPANY

    Remove the lower stabilizer shaft link nut (1) and separate from the front stabilizer shaft.

  36. GM5537645Courtesy of GENERAL MOTORS COMPANY

    Reposition a portion of the front wheelhouse if equipped with a engine auxiliary radiator.

  37. Front Wheelhouse Liner Bolt (1) - Remove [5x]
  38. Front Wheelhouse Liner Retainer (2) - Remove
  39. Front Wheelhouse Liner (3) - Reposition
  40. GM5536877Courtesy of GENERAL MOTORS COMPANY

    { If equipped } Charge Air Cooler Bracket Bolt (1) @ Charge Air Cooler Bracket (2) - Remove [2x]

  41. CAUTION:

    Electrostatic discharge (ESD) can damage many solid-state electrical components. ESD susceptible components may or may not be labeled with the ESD symbol. Handle all electrical components carefully. Use the following precautions in order to avoid ESD damage:

    • Touch a metal ground point in order to remove your body's static charge before servicing any electronic component; especially after sliding across the vehicle seat.
    • Do not touch exposed terminals. Terminals may connect to circuits susceptible the ESD damage.
    • Do not allow tools to contact exposed terminals when servicing connectors.
    • Do not remove components from their protective packaging until required to do so.
    • Avoid the following actions unless required by the diagnostic procedure:
      • Jumpering or grounding of the components or connectors.
      • Connecting test equipment probes to components or connectors. Connect the ground lead first when using test probes.
    • Ground the protective packaging of any component before opening. Do not rest solid-state components on metal workbenches, or on top of TVs, radios, or other electrical devices.
  42. GM5324557Courtesy of GENERAL MOTORS COMPANY

    Disconnect the steering gear electrical connectors. (1)

  43. Support the radiator.
  44. CAUTION:

    With wheels of the vehicle facing straight ahead, secure the steering wheel utilizing steering column anti-rotation pin, steering column lock, or a strap to prevent rotation. Locking of the steering column will prevent damage and a possible malfunction of the SIR system. The steering wheel must be secured in position before disconnecting the following components:

    • The steering column
    • The intermediate shaft (s)
    • The steering gear

    After disconnecting these components, do not rotate the steering wheel or move the front tires and wheels. Failure to follow this procedure may cause the SIR coil assembly to become un-centered and cause possible damage to the SIR coil. If you think the SIR coil has become un-centered, refer to your specific SIR coil's centering procedure to re-center SIR Coil.

  45. Secure the steering wheel so it will not turn when the mid intermediate steering shaft is disconnected.
  46. GM5330305Courtesy of GENERAL MOTORS COMPANY

    Mid Intermediate Steering Shaft Bolt (2) @ Intermediate Steering Shaft - Remove

  47. Separate the mid lower intermediate steering shaft (1) from the intermediate steering shaft by pushing the lower portion of the mid lower intermediate shaft upward and rearward along the axis of the upper portion of the mid lower intermediate steering shaft.
  48. GM5399464Courtesy of GENERAL MOTORS COMPANY

    { If equipped } Front Crossmember Brace Nut (1) - Remove [4x]

  49. { If equipped } Front Crossmember Brace (2) - Remove
  50. GM5399590Courtesy of GENERAL MOTORS COMPANY

    Front Wheelhouse Liner Retainer (2) @ Front Wheelhouse Liner (1) - Remove

  51. GM5318200Courtesy of GENERAL MOTORS COMPANY

    Front Crossmember Brace Bolt (1) - Remove [4x]

  52. Front Crossmember Brace Nut (2) - Remove
  53. Front Crossmember Brace-Right Side (3) - Remove
  54. GM5399497Courtesy of GENERAL MOTORS COMPANY

    Front Wheelhouse Liner Retainer (1) @ Front Wheelhouse Liner (2) - Remove

  55. GM5317837Courtesy of GENERAL MOTORS COMPANY

    Front Crossmember Brace Bolt (1) - Remove [4x]

  56. Front Crossmember Brace Nut (2) - Remove
  57. Front Crossmember Brace-Left Side (3) - Remove
  58. GM5465329Courtesy of GENERAL MOTORS COMPANY

    Disconnect the electrical connectors (1) at the engine mounts.

  59. GM6003729Courtesy of GENERAL MOTORS COMPANY

    Install EN-39580  engine support stand under the drivetrain and front suspension cradle.

  60. Lower the vehicle until the drivetrain and front suspension cradle is resting lightly on the jackstands.
  61. Drivetrain and Front Suspension Cradle Rear Bolt (2) - Remove and DISCARD [2x]
  62. Drivetrain and Front Suspension Cradle Front Bolt (1) - Remove and DISCARD [4x]
  63. With the aid of an assistant, carefully raise the body from the drivetrain and front suspension cradle.
  64. Disconnect any harness retainers attached to the drivetrain and front suspension cradle.
  65. Ensure when raising the body, the following items are clear from the drivetrain and front suspension cradle:
    • Vacuum lines
    • Steering knuckles
    • Electrical wiring harnesses
    • Oil coolers lines
  66. GM5536945Courtesy of GENERAL MOTORS COMPANY

    Drivetrain and Front Suspension Cradle (1) - Remove

  67. GM5330287Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Use caution when removing components surrounding the Steering Gear Boots. Avoid tool contact with the steering gear boot and clamps. Damage to the steering gear boot may lead to dirt and water contamination in the steering gear rack and components requiring a preventable replacement of the Steering Gear and its Components.

    Front Stabilizer Shaft Insulator Clamp Nut (1) - Remove [4x]

  68. Front Stabilizer Shaft Clamp (2) - Remove [2x]
  69. NOTE:

    The front stabilizer shaft insulators are NOT serviceable. Do NOT transfer the insulators.

  70. Front Stabilizer Shaft (3) - Remove
  71. CAUTION:

    Electrostatic discharge (ESD) can damage many solid-state electrical components. ESD susceptible components may or may not be labeled with the ESD symbol. Handle all electrical components carefully. Use the following precautions in order to avoid ESD damage:

    • Touch a metal ground point in order to remove your body's static charge before servicing any electronic component; especially after sliding across the vehicle seat.
    • Do not touch exposed terminals. Terminals may connect to circuits susceptible the ESD damage.
    • Do not allow tools to contact exposed terminals when servicing connectors.
    • Do not remove components from their protective packaging until required to do so.
    • Avoid the following actions unless required by the diagnostic procedure:
      • Jumpering or grounding of the components or connectors.
      • Connecting test equipment probes to components or connectors. Connect the ground lead first when using test probes.
    • Ground the protective packaging of any component before opening. Do not rest solid-state components on metal workbenches, or on top of TVs, radios, or other electrical devices.
    CAUTION:

    During removal and installation, all EPS components including mechanical and/or electrical is extremely susceptible to damage. Dropping or prying on any EPS component may cause internal damage. If damage occurs or a part is dropped, the EPS component must be replaced.

    CAUTION:

    Care must be taken during removal and installation of the Electronic Power Steering (EPS) components to not hit or break the EPS motor/controller module or module harness connectors. If the EPS motor/ controller module or module connectors are damaged, the complete component must be replaced.

  72. GM5500794Courtesy of GENERAL MOTORS COMPANY

    Steering Gear Nut (1) - Remove [2x]

  73. Steering Gear Bolt (2) - Remove and DISCARD [2x]
  74. Electric Belt Drive Rack and Pinion Steering Gear (3) - Remove
  75. Transfer components as necessary.