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Home >> Cadillac >> 2021 >> CT4 V, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 69 (Automatic Transmission - 10L60 (MQA) Or 10L80 (MHU) - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Automatic Transmission Removal and Installation (Rear Wheel Drive) >> 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.
WARNING:

In order to avoid being burned, do not service the exhaust system while it is still hot. Service the system when it is cool.

WARNING:

Avoid contact with HOT components. Wear safety glasses and protective gloves to avoid personal injury.

  1. Disconnect the negative battery cable. Battery Negative Cable Disconnection and Connection
  2. Raise and support the vehicle. Lifting and Jacking the Vehicle
  3. GM5395705Courtesy of GENERAL MOTORS COMPANY

    Rear Tire Front Air Deflector Bolt (1) - Remove [2x]

  4. Rear Tire Front Air Deflector- Left Side (2) - Remove
  5. GM5400553Courtesy of GENERAL MOTORS COMPANY

    Rear Wheelhouse Liner Bolt (1) - Remove

  6. Underbody Rear Air Deflector Plastic Nut (2) - Remove [3x]
  7. Underbody Rear Air Deflector Bolt (3) - Remove [3x]
  8. Underbody Rear Air Deflector Nut (4) - Remove [2x]
  9. Underbody Rear Air Deflector- Left Side (5) - Remove
  10. GM5471237Courtesy of GENERAL MOTORS COMPANY

    Rear Tire Front Air Deflector Bolt (2) - Remove [2x]

  11. Rear Tire Front Air Deflector- Right Side (1) - Remove
  12. GM5400642Courtesy of GENERAL MOTORS COMPANY

    Rear Wheelhouse Liner Bolt (1) - Remove

  13. Underbody Rear Air Deflector Bolt (2) - Remove [3x]
  14. Underbody Rear Air Deflector Plastic Nut (3) - Remove [3x]
  15. Underbody Rear Air Deflector Nut (4) - Remove [2x]
  16. Underbody Rear Air Deflector- Right Side (5) - Remove
  17. GM5471236Courtesy of GENERAL MOTORS COMPANY

    Floor Panel Number 4 Cross Bar Reinforcement Bolt (2) - Remove [6x]

  18. Floor Panel Reinforcement (1) - Remove
  19. GM5309188Courtesy of GENERAL MOTORS COMPANY

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

  20. GM5394596Courtesy of GENERAL MOTORS COMPANY

    Electrical Connector (1) @ Exhaust Control Valve Actuator - Disconnect [2x]

  21. GM5309202Courtesy of GENERAL MOTORS COMPANY

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

  22. Exhaust Muffler (1) @ Exhaust Rear Muffler Insulator-Left Side (3) - Separate
  23. GM5309211Courtesy of GENERAL MOTORS COMPANY

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

  24. Exhaust Muffler (1) @ Exhaust Rear Muffler Insulator-Right Side (3) - Separate
  25. GM5399464Courtesy of GENERAL MOTORS COMPANY

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

  26. { If equipped } Front Crossmember Brace (2) - Remove
  27. GM5394598Courtesy of GENERAL MOTORS COMPANY

    Exhaust Muffler (1) - Remove

  28. Catalytic Converter Gasket (2) - Remove and DISCARD
  29. GM5507958Courtesy of GENERAL MOTORS COMPANY

    Propeller Shaft Hub Clamp (1) - Remove and DISCARD

  30. GM5317835Courtesy of GENERAL MOTORS COMPANY

    Mark (2) the relationship of the propeller shaft to the rear differential flange using a paint pen.

  31. CAUTION:

    When removing the propeller shaft, do not remove the propeller shaft coupler from the propeller shaft assembly. The only bolts that should be removed are those that mount each coupler to the transmission output flange, and to the rear drive axle input flange. Failure to properly remove the propeller shaft assembly may cause coupler damage, resulting in necessary replacement of the entire propeller shaft.

  32. Rear Propeller Shaft Nut (3) - Remove [3x]
  33. Rear Propeller Shaft Bolt (1) - Remove [3x]
  34. Support and secure the propeller shaft to a suitable hydraulic jack stand.
  35. GM5863691Courtesy of GENERAL MOTORS COMPANY

    Propeller Shaft Bearing Support Bolt (1) - Remove [2x]

  36. GM6036036Courtesy of GENERAL MOTORS COMPANY

    Propeller Shaft (1) - Remove

  37. GM5414842Courtesy of GENERAL MOTORS COMPANY

    Transmission Fluid Cooler Pipe Connector Bolt (1) - Remove [2x]

  38. Transmission Fluid Cooler Pipe Bolt (2) - Remove
  39. Transmission Fluid Cooler Pipe Clip Bolt (3) - Remove
  40. GM5414849Courtesy of GENERAL MOTORS COMPANY

    Transmission Fluid Cooler Pipe Nut (1) - Remove [2x]

  41. NOTE:

    Cap the fittings and plug the holes when removing the transmission fluid cooler pipes.

  42. Transmission Fluid Cooler Inlet and Outlet Pipe (2) - Remove
  43. GM5414854Courtesy of GENERAL MOTORS COMPANY

    Transmission Fluid Cooler Pipe Seal (1) - Remove and DISCARD [2x]

  44. Transmission Fluid Cooler Seal (2) - Remove and DISCARD
  45. GM5414859Courtesy of GENERAL MOTORS COMPANY

    Transmission Fluid Cooler Thermal Bypass Valve Gasket (1) - Remove and DISCARD [2x]

  46. GM5488457Courtesy of GENERAL MOTORS COMPANY

    Automatic Transmission Fluid Cooling Heat Exchanger Inlet Hose Clamp (1) - Disengage - Hose Clamp Replacement Guidelines - Spring Type

  47. Automatic Transmission Fluid Cooling Heat Exchanger Inlet Hose (2) @ Automatic Transmission Fluid Cooling Exchanger - Remove
  48. Automatic Transmission Fluid Cooling Heat Exchanger Outlet Hose Clamp (3) - Disengage - Hose Clamp Replacement Guidelines - Spring Type
  49. Automatic Transmission Fluid Cooling Heat Exchanger Outlet Hose (4) @ Automatic Transmission Fluid Cooling Exchanger - Remove
  50. GM5488458Courtesy of GENERAL MOTORS COMPANY

    Transmission Fluid Cooler Pipe Connector Bolt (1) - Remove [2x]

  51. NOTE:

    Cap the fittings and plug the holes when removing the transmission fluid cooler pipes.

  52. Transmission Fluid Cooler Inlet and Outlet Pipe (2) @ Automatic Transmission Fluid Cooling Exchanger - Remove
  53. GM5488459Courtesy of GENERAL MOTORS COMPANY

    Transmission Fluid Cooler Pipe Seal (1) - Remove and DISCARD [2x]

  54. GM5488460Courtesy of GENERAL MOTORS COMPANY

    Automatic Transmission Fluid Cooling Exchanger Bolt (1) - Remove [3x]

  55. Automatic Transmission Fluid Cooling Exchanger (2) - Remove
  56. GM5396452Courtesy of GENERAL MOTORS COMPANY

    Hose Clamp (1) - Disengage [2x] - Hose Clamp Replacement Guidelines - Spring Type

  57. Engine Oil Cooler Coolant Outlet Hose (2) @ Engine Oil Cooler - Remove
  58. Engine Oil Cooler Coolant Inlet Hose (3) @ Engine Oil Cooler - Remove
  59. GM5396459Courtesy of GENERAL MOTORS COMPANY

    Engine Oil Cooler Bolt (1) - Remove [4x]

  60. GM5396466Courtesy of GENERAL MOTORS COMPANY

    Engine Oil Cooler (1) - Remove

  61. Engine Oil Cooler Seal (2) - Remove and DISCARD [2x]
  62. Reposition any hoses that will impede the removal of the starter.
  63. GM5417233Courtesy of GENERAL MOTORS COMPANY

    Auxiliary Generator Battery Jumper Cable Terminal Nut (1) - Remove

  64. Auxiliary Generator Battery Jumper Cable (2) - Reposition away
  65. Retainer (3) - Disengage
  66. GM5417249Courtesy of GENERAL MOTORS COMPANY

    Starter Stud (1) - Remove

  67. Starter Bolt (2) - Remove [2x]
  68. Reposition the starter to gain access to the electrical connections.
  69. GM5417288Courtesy of GENERAL MOTORS COMPANY

    Battery Positive Cable Nut (1) @ Starter Solenoid - Remove

  70. Auxiliary Generator Battery Jumper Cable (2) - Remove
  71. Electrical Connector (4) - Disconnect
  72. Starter (3) - Remove
  73. GM5342773Courtesy of GENERAL MOTORS COMPANY

    Repeat the following steps for all torque converter bolts (1):

    1. Rotate the harmonic balancer center bolt clockwise ONLY, to align the torque converter bolt with the starter opening.
    2. Torque Converter Bolt (1) - Remove [6x]
  74. GM5522054Courtesy of GENERAL MOTORS COMPANY

    Disconnect the electrical connector. (1)

  75. Release the 5 retainers (2).
  76. GM5522052Courtesy of GENERAL MOTORS COMPANY

    Transmission Bolt (1) - Remove [3x]

  77. Transmission Stud (1) - Remove
  78. GM5522047Courtesy of GENERAL MOTORS COMPANY

    Transmission Bolt (1) - Remove [3x]

  79. Transmission Stud (1) - Remove
  80. GM5523009Courtesy of GENERAL MOTORS COMPANY

    Transmission Stud (1) - Remove

  81. Disconnect the transmission vent hose from the engine.
  82. Support the transmission with a suitable jack.
  83. GM5427472Courtesy of GENERAL MOTORS COMPANY

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

  84. GM5427478Courtesy of GENERAL MOTORS COMPANY

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

  85. Transmission Mount (2) - Remove
  86. Pull the transmission straight back.
  87. GM5536478Courtesy of GENERAL MOTORS COMPANY

    Install the J-21366  strap (1) onto the transmission bell housing to retain the torque converter.

  88. GM5522056Courtesy of GENERAL MOTORS COMPANY

    Remove the transmission. (1)