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Home >> Cadillac >> 2021 >> CT4 Sport, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 116 (Manual Transmission - TREMEC 6-Speed (Mg9) - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Manual Transmission Control 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. Apply the parking brake.
  2. Place the transmission control in the Neutral position.
  3. GM5868061Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    The transmission control lever boot and knob are replaced as an assembly.

    Using a flat bladed trim tool, detach the manual transmission control lever boot (2) from the console.

  4. Lift the manual transmission control lever boot (2) to access the manual transmission control lever knob bolt (3).
  5. Remove the manual transmission control lever knob bolt (3), then lift off the manual transmission control lever boot and knob as an assembly (1, 2).
  6. GM5868024Courtesy of GENERAL MOTORS COMPANY

    Using a flat-bladed plastic trim tool, release the retaining clips.

  7. Reposition the front floor console trim plate (1) to access the electrical connector.
  8. GM5873058Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Some components not shown for graphic clarity.

    Disconnect the instrument panel harness connector (1) from the front floor console wiring harness extension harness.

  9. GM5868026Courtesy of GENERAL MOTORS COMPANY

    Front Floor Console Trim Plate (1) - Remove

  10. GM5873480Courtesy of GENERAL MOTORS COMPANY

    Disconnect the electrical connector.

  11. Auxiliary Multifunction Switch Bolt (1) - Remove [3x]
  12. Vehicle Stability Control System Switch (2) - Remove
  13. GM5873473Courtesy of GENERAL MOTORS COMPANY

    Disconnect the electrical connector.

  14. Wireless Charging System Module Bolt (1) - Remove [2x]
  15. Wireless Charging System Module (2) - Remove
  16. GM5873426Courtesy of GENERAL MOTORS COMPANY

    Release the wiring harness clip and remove the front floor console wiring harness extension harness (1).

  17. GM5868067Courtesy of GENERAL MOTORS COMPANY

    Remove the manual transmission control lever lower boot (1) from the manual transmission control (2).

  18. GM5868075Courtesy of GENERAL MOTORS COMPANY

    Remove the 4 manual transmission control bracket bolts (1, 2) securing the manual transmission control assembly to the tunnel reinforcement.

  19. Push the tabs on the closeout boot (1) inward and down to clear the body structure.
  20. Raise and support the vehicle. Lifting and Jacking the Vehicle
  21. GM5395705Courtesy of GENERAL MOTORS COMPANY

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

  22. Rear Tire Front Air Deflector- Left Side and Right Side (2) - Remove [2x]
  23. GM5400553Courtesy of GENERAL MOTORS COMPANY

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

  24. Underbody Rear Air Deflector Nut- Left Side (2) - Remove [3x]
  25. Underbody Rear Air Deflector Bolt- Left Side (3) - Remove [3x]
  26. Underbody Rear Air Deflector Nut- Left Side (4) - Remove [2x]
  27. Underbody Rear Air Deflector- Left Side (5) - Remove
  28. GM5400642Courtesy of GENERAL MOTORS COMPANY

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

  29. Underbody Rear Air Deflector Bolt- Right Side (2) - Remove [3x]
  30. Underbody Rear Air Deflector Nut- Right Side (3) - Remove [3x]
  31. Underbody Rear Air Deflector Nut- Right Side (4) - Remove [2x]
  32. Underbody Rear Air Deflector- Right Side (5) - Remove
  33. GM5839256Courtesy of GENERAL MOTORS COMPANY

    Underbody Front Air Deflector Bolt- Right Side (1) - Remove [6x]

  34. Underbody Rear Air Deflector Nut- Right Side (2) - Remove [5x]
  35. Transmission Fluid Cooler Pipe Bracket Bolt- Right Side (3) - Remove [2x]
  36. Underbody Rear Air Deflector- Right Side (5) - Remove
  37. GM5854893Courtesy of GENERAL MOTORS COMPANY

    Underbody Front Air Deflector Bolt- Left Side (1) - Remove [6x]

  38. Underbody Rear Air Deflector Nut- Left Side (2) - Remove [5x]
  39. Transmission Fluid Cooler Pipe Bracket Bolt- Left Side (3) - Remove [2x]
  40. Underbody Rear Air Deflector- Left Side (5) - Remove
  41. GM5400756Courtesy of GENERAL MOTORS COMPANY

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

  42. Floor Panel Reinforcement (2) - Remove
  43. GM5865265Courtesy of GENERAL MOTORS COMPANY

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

  44. GM5865271Courtesy of GENERAL MOTORS COMPANY

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

  45. GM5406578Courtesy of GENERAL MOTORS COMPANY

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

  46. GM5406632Courtesy of GENERAL MOTORS COMPANY

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

  47. GM5865287Courtesy of GENERAL MOTORS COMPANY

    Electrical Connector (1) - Disconnect

  48. GM5865293Courtesy of GENERAL MOTORS COMPANY

    Electrical Connector (1) - Disconnect

  49. GM5865300Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    The rear bumper fascia is removed for illustration purposes only.

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

  50. GM5865329Courtesy of GENERAL MOTORS COMPANY

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

  51. Catalytic Converter Gasket (2) - Remove and DISCARD
  52. GM5865888Courtesy of GENERAL MOTORS COMPANY

    Exhaust Heat Shield Bolt (1) - Remove [2x]

  53. Exhaust Intermediate Underbody Heat Shield (2) - Remove
  54. GM5334717Courtesy of GENERAL MOTORS COMPANY

    Floor Panel Number 2 Cross Bar Reinforcement Bolt (1) - Remove [4x]

  55. Floor Panel Number 2 Cross Bar Reinforcement (2) - Remove
  56. GM5867501Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Before removing the propeller shaft from the vehicle, paint or scribe references marks on the transmission flange to the propeller shaft and the rear differential drive flange to ensure minimal driveline system imbalance.

    Mark (2) the relationship of the propeller shaft flange (3) and the output flange (1) of the transmission.

  57. GM5863695Courtesy of GENERAL MOTORS COMPANY

    Mark (3) the relationship of the propeller shaft flange (1) and the rear axle pinion flange (2).

  58. GM5867502Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Ensure that the propeller shaft is secured to the jack stand.

    Support the propeller shaft with a suitable jack stand.

  59. Remove the 3 front propeller shaft bolts (2) and the 3 front propeller shaft nuts (1).
  60. GM5863697Courtesy of GENERAL MOTORS COMPANY

    Remove the 3 rear propeller shaft bolts (1) and the 3 rear propeller shaft nuts (2).

  61. GM5863691Courtesy of GENERAL MOTORS COMPANY

    Remove the 2 propeller shaft bearing support bolts (1).

  62. GM5863853Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Care should be taken not to use sharp or pry tools when separating the propeller shaft coupler from the drive flange. Damage to the coupler could result and replacement of the entire propeller shaft would be required.

    NOTE:

    It may be necessary to apply a small amount of penetrating lubricant or WD-40® to the area shown (1) to aid in separation of the propeller shaft coupling.

    If the propeller shaft does not easily separate from the differential, transmission, use a rubber mallet to gently tap the locations (1) on the rubber coupling shown above to separate.

  63. GM5867503Courtesy of GENERAL MOTORS COMPANY

    Remove the propeller shaft (1) from the vehicle.

  64. Using a suitable jack stand, support the rear of the transmission.
  65. GM5867366Courtesy of GENERAL MOTORS COMPANY

    Transmission Mount Bracket Bolt (1) - Remove [4x]

  66. GM5867368Courtesy of GENERAL MOTORS COMPANY

    Transmission Mount Bolt (1) - Remove [2x]

  67. Transmission Mount (2) - Remove
  68. Lower the transmission assembly to gain access to the top of the transmission.
  69. GM5868084Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    The view is for better understanding of component.

    Remove the 2 manual transmission control lever base pin retainers (1).

  70. Remove the manual transmission control lever base pin (3).
  71. GM5868083Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    The view is for better understanding of component.

    Using a suitable flat-blade tool, release the left side manual transmission control lever base pin retaining tab (1), while sliding the manual transmission control lever base pin (2) outward. The pin will lock again at the outer transmission boss. Using a suitable flat-blade tool, insert the tool between the boss and the rubber mount on the shift control assembly to release the manual transmission control lever base pin retaining tab to slide it further out of the transmission boss. Reposition the transmission slightly to allow extra clearance to completely remove the manual transmission control lever base pin.

  72. Using a suitable flat-blade tool, release the right side manual transmission control lever base pin retaining tab (1), while sliding the manual transmission control lever base pin (2) outward. The manual transmission control lever base pin will lock again at the outer transmission boss. Using a suitable flat-blade tool, insert the tool between the boss and the rubber mount on the shift control assembly to release the manual transmission control lever base pin retaining tab to slide it further out of the transmission boss. Reposition the transmission slightly to allow extra clearance to completely remove the manual transmission control lever base pin.
  73. Remove the manual transmission control from the transmission.
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