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Home >> Chevrolet >> 2017 >> Spark LT, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 26 (Automatic Transmission - 6T45 (MH7) - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Transmission Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.
  1. Battery Tray Replacement - Remove
  2. Range Selector Lever Cable Bracket Replacement  - Remove
  3. Raise and support the vehicle. - Lifting and Jacking the Vehicle
  4. Underbody Brace Replacement - Front - Remove
  5. Transmission Fluid Drain and Fill  - Drain
  6. Radiator Inlet Hose Replacement - Remove
  7. Charge Air Cooler Outlet Air Hose Replacement - Remove
  8. Transmission Fluid Cooler Inlet Pipe Replacement @Transmission - Disconnect
  9. Transmission Fluid Cooler Outlet Pipe Replacement @Transmission - Disconnect
  10. Plug and/or cap the pipes and the transmission to prevent contamination.
  11. Remove the transmission vent hose.
  12. GM4230803

    Transmission Fluid Cooler Pipe Clip(1) - Remove

  13. Disconnect the transmission electrical connector (3).
  14. Remove the transmission wiring harness retainer (2).
  15. GM4230804

    Loosen the 2 retainers (1) of the generator and starter cable conduit.

  16. GM4230805

    Remove the generator and starter cable conduit bolt (2).

  17. Loosen the 2 retainers (3, 4) of the generator and starter cable.
  18. Position the generator and starter cable (1) aside.
  19. GM4248444

    Remove the 3 transmission upper bolts (1).

  20. GM4248451
    NOTE:

    Graphic shows the vehicle front without bumper for the sake of clarity.

    Secure the radiator (2) to the front end upper tie bar, using 2 lashing straps (1).

  21. Install the EN-28467-B  support fixture. Refer to Engine Support Fixture .
  22. Raise the vehicle.
  23. Drivetrain and Front Suspension Frame Replacement - Remove
  24. Disconnect the left front wheel drive shaft from the transmission. Refer to Front Wheel Drive Shaft Replacement - Left Side . The drive shaft remains in the wheel hub.
  25. GM4087962

    Secure the left drive shaft (1) to the hoist (3), using a lashing strap (2).

  26. Disconnect the right front wheel drive shaft from the front wheel intermediate shaft. Refer to Front Wheel Drive Shaft Replacement - Right Side . The drive shaft remains in the wheel hub.
  27. GM4248452

    Secure the right drive shaft (2) to the hoist (1), using a lashing strap (3).

  28. Front Wheel Drive Intermediate Shaft Replacement - Remove
  29. Transmission Mount Bracket Replacement - Rear  - Remove
  30. Transmission Front Mount Replacement  - Remove
  31. Starter Replacement - Remove
  32. GM4248453

    Loosen the torque converter from the flexplate.

    1. Turn the engine at the crankshaft pulley (2) clockwise with a socket wrench (3) until a torque converter bolt (1) shows up.
    2. Remove and DISCARD the torque converter bolt (1).
    3. Turn the engine at the crankshaft pulley clockwise 120 degrees.
    4. Remove and DISCARD the next torque converter bolt.
    5. Repeat the previous 2 steps to remove the 3rd (last) torque converter bolt.
  33. Lower the vehicle.
  34. GM4248454

    Apply tension to the hooks (1) of the EN-28467-B  support fixture.

  35. Transmission Mount Bolt(2) - Remove and DISCARD[3x]
  36. Lower the engine/transmission unit about 5 cm (2 in)  with the EN-28467-B  support fixture to allow clearance for removal of the transmission.
  37. Raise the vehicle.
  38. GM4248456

    Remove the transmission front lower nut (1).

  39. Remove the transmission lower bolt (2).
  40. GM4248457

    Remove the transmission lower bolt (2).

  41. Support the transmission with a suitable jack.
  42. Remove the transmission rear bolt (1).
  43. Remove the transmission converter cover (3).
  44. GM4248458
    NOTE:

    This is the last transmission bolt.

    Remove the transmission front upper bolt (1).

    45. NOTE:

    Ensure the torque converter remains securely in place on the transmission input shaft while separating and removing the transmission.

  45. Separate the transmission from the engine.
  46. Lower the transmission with the transmission jack far enough to remove the transmission.
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