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Home >> GMC >> 2017 >> Acadia SL >> Repair and Diagnosis >> External Pages >> Different car >> Section 43 (Automatic Transmission - 8L45 (M5N M5T) Or 8L90 (M5U) - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Transmission Replacement (M5T with LCV Engine) >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2016 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Starter Replacement (LCV, LTG) »Remove
  2. Raise and suitably support the vehicle. Lifting and Jacking the Vehicle (Base)Lifting and Jacking the Vehicle (V-Series)
  3. Two-Piece Propeller Shaft Replacement (LTG, LGX, LCV) »Remove
  4. {If equipped} Front Axle Propeller Shaft Replacement (LGX, LTG) »Remove
  5. Catalytic Converter Replacement (LCV) »Remove
  6. Fig 1: Transmission Range Selector Lever Cable
    GM4032383Courtesy of GENERAL MOTORS COMPANY
  7. Disconnect the transmission range selector lever cable terminal (1) from the transmission manual shift lever pin (6).
  8. Slide the retainer (4) forward to release the transmission range selector lever cable (5) from the bracket.
  9. Fig 2: Transmission Fluid Cooler Pipes
    GM4083607Courtesy of GENERAL MOTORS COMPANY
  10. Place an oil drain pan under the transmission fluid cooler pipes (1).
  11. Remove the transmission fluid cooler inlet and outlet pipes (1) from the transmission, and position aside, or remove from the vehicle as necessary. Transmission Fluid Cooler Inlet and Outlet Pipe Replacement (LCV Without V03)Transmission Fluid Cooler Inlet and Outlet Pipe Replacement (LCV With V03)
  12. Plug the open fluid ports to prevent fluid loss and contamination.
  13. Transmission Converter Cover Replacement (Rear Wheel Drive) Transmission Converter Cover Replacement (All Wheel Drive) »Remove
  14. Fig 3: Transmission Close Out Plug
    GM4089020Courtesy of GENERAL MOTORS COMPANY
  15. Remove the transmission close out plug (1).
  16. Mark the torque converter to flexplate orientation to ensure proper realignment.
  17. Fig 4: Torque Converter Bolts
    GM4109165Courtesy of GENERAL MOTORS COMPANY
  18. Repeat the following steps for all torque converter bolts (1):
    1. Rotate the harmonic balancer center bolt clockwise ONLY, in order to align the torque converter bolt with the starter opening.
    2. Remove and Discard the torque converter bolt.
  19. Fig 5: Catalytic Converter Shield
    GM4089948Courtesy of GENERAL MOTORS COMPANY
  20. Remove the catalytic converter shield (4) from the engine assembly.
  21. Disconnect the electrical wiring harness retainers from the transmission to engine fasteners and from the transmission case.
  22. Support the transmission with a suitable transmission jack.
  23. Fig 6: Lower Right Transmission Bolts
    GM4109160Courtesy of GENERAL MOTORS COMPANY
  24. Remove the lower right transmission to engine bolts (1, 2).
  25. Fig 7: Lower Left Transmission Bolts
    GM4089733Courtesy of GENERAL MOTORS COMPANY
  26. Remove the lower left transmission to engine bolts (1, 2).
  27. Fig 8: Left Upper Transmission Bolts
    GM4089960Courtesy of GENERAL MOTORS COMPANY
  28. Remove the left upper transmission to engine bolts (1, 2).
  29. Support the transmission with a suitable transmission jack.
  30. Transmission Support Replacement (Automatic RWD)Transmission Support Replacement (Automatic AWD) »Remove
  31. Tilt the transmission downward just enough to gain access to the upper transmission fasteners.
  32. Fig 9: Transmission Vent Hose And Retainer
    GM4089964Courtesy of GENERAL MOTORS COMPANY
  33. Disconnect the transmission vent hose (2) and retainer (1) from the transmission, then position aside.
  34. Fig 10: Transmission Bolts
    GM4089977Courtesy of GENERAL MOTORS COMPANY
  35. Remove the transmission to engine bolts (1, 2, 3).
  36. Pull the transmission straight back.
  37. Install the J-21366  strap onto the transmission bell housing to retain the torque converter.
  38. Remove the transmission from the vehicle.
  39. Transfer components as necessary.
  40. Flush and flow test the transmission cooler and transmission pipes. Transmission Fluid Cooler Flushing and Flow Test (8L90)