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Home >> GMC >> 2021 >> Acadia SL >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission - 9T50 (M3H), 9T60 (M3G) Or 9T65 (M3W) - Repair Instructions - On Vehicle >> Repair Instructions - On Vehicle >> Transmission Replacement (All Wheel Drive with LGX) >> Removal Procedure

Removal Procedure

  1. Battery Tray - Remove - Battery Tray Replacement
  2. Disconnect the electronic transmission range selector manual park release cable from the transmission. Electronic Transmission Range Selector Manual Park Release Cable Replacement 
  3. Remove the heater water auxiliary pump bolt (1).
    GM4738922Courtesy of GENERAL MOTORS COMPANY
  4. Position the heater water auxiliary pump (2) out of the way.
  5. Remove the electrical harness bracket nuts (1).
    GM4707670Courtesy of GENERAL MOTORS COMPANY
  6. Remove the electrical harness bracket (2) from the control valve body cover and position out of the way.
  7. Disconnect the control valve body transmission control module electrical connector (1), then unclip the wiring harness from the cover.
    GM4707537Courtesy of GENERAL MOTORS COMPANY
  8. Drain the transmission fluid. Transmission Fluid Drain and Fill 
  9. Disconnect the transmission fluid cooler outlet pipe (1, 2) at the thermal bypass valve. Transmission Fluid Cooler Outlet Pipe Replacement (LGX, with V08)
    GM4707558Courtesy of GENERAL MOTORS COMPANY
  10. Plug and/or cap the pipes and the transmission to prevent contamination.
  11. Disconnect the auxiliary fluid accumulator electrical connector (1).
    GM5627689Courtesy of GENERAL MOTORS COMPANY
  12. Remove the body wiring harness bracket bolt (2).
  13. Reposition the body wiring harness bracket with wiring harness (3) as necessary.
  14. Remove the upper transmission to engine bolts (1, 2, 3).
    GM4738546Courtesy of GENERAL MOTORS COMPANY
  15. Remove the drivetrain and front suspension cradle. Drivetrain and Front Suspension Cradle Removal and Installation
  16. Disconnect the left side front wheel drive shaft from the transmission. Front Wheel Drive Half Shaft Replacement - Left Side
  17. Remove the power transfer unit from the vehicle. Power Transfer Unit Case Replacement (LGX)
  18. Remove the starter. Starter Replacement (LGX)
  19. Mark the relationship of the flex plate to the torque converter for reassembly.
  20. Remove the torque converter to flex plate bolts (1).
    GM4737566Courtesy of GENERAL MOTORS COMPANY
  21. Lower the vehicle.
  22. Install the engine support fixture. Engine Support Fixture
  23. Remove the left transmission mount to transmission bolts. Transmission Mount Replacement 
  24. Remove the front transmission mount to transmission bolts. Transmission Front Mount Replacement 
  25. Lower the transmission side with the support fixture to allow clearance for removal.
  26. Unclip the engine wiring harness from the transmission.
  27. Raise the vehicle.
  28. Use a transmission jack in order to support the transmission.
  29. Remove the 3 transmission bolts (1).
    GM5627349Courtesy of GENERAL MOTORS COMPANY
  30. Remove the transmission bolts (1, 2).
    GM4738489Courtesy of GENERAL MOTORS COMPANY
    31. NOTE:

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

  31. Separate the transmission from the engine.
  32. Lower the transmission with the transmission jack far enough to remove the transmission.
  33. Transfer components as necessary.
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