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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 LSY or LCV) >> Installation Procedure

Installation Procedure

  1. Raise the transmission with the transmission jack and position the transmission to the engine.
  2. Install the 2 transmission bolts (1) and tighten to 58 N.m (43 lb ft).
    GM5053485Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Fastener Caution .

  3. Install the torque converter cover (2).
    GM5053439Courtesy of GENERAL MOTORS COMPANY
  4. Install the 3 transmission bolts (1) and tighten to 58 N.m (43 lb ft).
  5. Remove the transmission jack.
  6. Align the mark of the flex plate to the mark on the torque converter for reassembly.
  7. Install the torque converter bolts (1) and tighten to 60 N.m (44 lb ft).
    GM5053382Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    If reusing the torque converter bolts, clean the threads and apply threadlocker to the threads prior to installation. Adhesives, Fluids, Lubricants, and Sealers

  8. Install the starter. Starter Replacement (LCV - AWD) , or Starter Replacement (LSY)
  9. Install the power transfer unit to the transmission. Power Transfer Unit Case Replacement (LSY)
  10. Install the transmission rear mount bracket (2) to the power transfer unit. Transmission Rear Mount Bracket Replacement (AWD) 
    GM4287556Courtesy of GENERAL MOTORS COMPANY
  11. Install the drivetrain and front suspension cradle. Drivetrain and Front Suspension Cradle Removal and Installation
  12. Install the left side front wheel drive half shaft to the transmission. Front Wheel Drive Half Shaft Replacement - Left Side
  13. Remove the engine support fixture.
  14. Install the 2 transmission bolts (1) and tighten to 58 N.m (43 lb ft).
    GM5053317Courtesy of GENERAL MOTORS COMPANY
  15. Position the electrical wiring harness (2).
    GM5052609Courtesy of GENERAL MOTORS COMPANY
  16. Install the engine wiring harness bracket bolt and tighten to 9 N.m (80 lb in).
  17. Remove the engine support fixture.
  18. Connect the engine wiring harness and remaining electrical connectors to the transmission.
  19. Install the electronic transmission range selector park release cable to the transmission. Electronic Transmission Range Selector Manual Park Release Cable Replacement 
  20. Install the automatic transmission fluid cooler exchanger to the transmission. Automatic Transmission Fluid Cooling Exchanger Replacement (LSY)
  21. Install the automatic transmission fluid cooling heat exchanger inlet pipe. Automatic Transmission Fluid Cooling Heat Exchanger Inlet Pipe Replacement (LSY)
  22. Install the transmission fluid cooler inlet and outlet pipe to the transmission. Transmission Fluid Cooler Inlet and Outlet Pipe Replacement (LSY)
  23. Install the left and right side front wheelhouse liners. Front Wheelhouse Liner Replacement
  24. Install the transmission front mount (3). Transmission Front Mount Replacement 
    GM5048630Courtesy of GENERAL MOTORS COMPANY
  25. Connect the control valve body electrical connector (1).
    GM5153905Courtesy of GENERAL MOTORS COMPANY
  26. Position and connect the wiring harness (2) to the installed position.
  27. Connect all necessary wiring harness retainers and electrical connectors to the transmission.
  28. Fill the transmission with fluid. Transmission Fluid Drain and Fill 
  29. NOTE:

    The Transmission Adaptive Values Learn procedure must be performed when one of the following repairs have been made to the vehicle. Failure to perform the procedure after one of the following repairs may result in poor transmission performance, as well as transmission DTCs being set:

    • Transmission internal service/overhaul
    • Valve body repair or replacement
    • Control solenoid valve assembly replacement
    • TCM software/calibration update
    • Any service in response to a shift quality concern
  30. Reprogram the transmission. Q77 Transmission Control Solenoid Valve Characterization Programming
  31. Road test the vehicle.