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Home >> GMC >> 2021 >> Terrain SLT, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 62 (Automatic Transmission - 9T45 (M3U) Or 9T50 (M3D M3H) - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Transmission Replacement (Front Wheel Drive) >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2020 GMC Terrain and 2020 Chevrolet Equinox. However, it is still accessible from the selected car via links, so may be relevant.
  1. Raise the transmission with the transmission jack and position the transmission to the engine.
  2. GM4495364Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Fastener Caution .

    Install the transmission bolts (1, 2, 3) and tighten to 58 N.m (43 lb ft).

  3. GM4495326Courtesy of GENERAL MOTORS COMPANY

    Install the front transmission to engine bolt (1, 2) and tighten to 58 N.m (43 lb ft).

  4. Install the oil pump flow control valve heat shield, if equipped. Oil Pump Flow Control Valve Heat Shield Replacement
  5. Remove the transmission jack.
  6. Align the mark of the flywheel to the mark on the torque converter for reassembly.
  7. GM4316014Courtesy 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

    Install the torque converter to flywheel bolts (1) and tighten to 60 N.m (44 lb ft).

  8. Install the three way catalytic converter. Warm Up Three-Way Catalytic Converter Replacement (LYX) , or Warm Up Three-Way Catalytic Converter Replacement (LTG)
  9. Install the starter. Starter Replacement (LYX - AWD) , or Starter Replacement (LYX - FWD) , or Starter Replacement (LTG - AWD) , or Starter Replacement (LTG - FWD)
  10. Install the left transmission mount to the transmission. Transmission Mount Replacement (Left Side M3U) , or Transmission Mount Replacement (Left Side M3D/M3H) 
  11. Install the wheel drive shafts to the transmission. Front Wheel Drive Half Shaft Replacement - Left Side , and Front Wheel Drive Half Shaft Replacement - Right Side (AWD) , or Front Wheel Drive Half Shaft Replacement - Right Side (M3U, MHG, MNH, MNK with FWD) , or Front Wheel Drive Half Shaft Replacement - Right Side (M3D, M3H with FWD)
  12. Install the drivetrain and front suspension cradle. Drivetrain and Front Suspension Cradle Replacement (Front Wheel Drive) , or Drivetrain and Front Suspension Cradle Replacement (All Wheel Drive)
  13. Install the transmission mount strut bracket to the transmission. Transmission Mount Strut Bracket Replacement (All Wheel Drive) , or Transmission Mount Strut Bracket Replacement (Front Wheel Drive) 
  14. Remove the engine support fixture. Engine Support Fixture
  15. GM4495272Courtesy of GENERAL MOTORS COMPANY

    Install the upper transmission to engine bolts (1, 2, 3) and tighten to 58 N.m (43 lb ft).

  16. GM4580120Courtesy of GENERAL MOTORS COMPANY

    Auxiliary Water Pump Bracket Bolt(1)Auxiliary Water Pump - Install - Auxiliary Water Pump Replacement (LYX with KL9) , or Auxiliary Water Pump Replacement (LTG with KL9)

  17. GM4594706Courtesy of GENERAL MOTORS COMPANY

    Connect the control valve body transmission control module electrical connector (1), then clip the wiring harness to the cover.

  18. GM5417428Courtesy of GENERAL MOTORS COMPANY

    Connect the electrical connector (2) to the transmission input speed sensor (1).

  19. Connect the electrical connector (5) to the auxiliary fluid accumulator (4).
  20. Install the 2 engine wiring harness retainers (3).
  21. Install the transmission range select lever cable to the transmission. Automatic Transmission Range Selector Lever Cable Replacement 
  22. GM4594687Courtesy of GENERAL MOTORS COMPANY

    Install the transmission fluid cooler outlet pipes (2) to the transmission. Transmission Fluid Cooler Inlet and Outlet Pipe Replacement (LTG/LYX)

  23. Install the transmission fluid cooler inlet pipe nut (1) to the transmission and tighten to 9 N.m (80 lb in).
  24. Clip the engine wiring harness to the transmission.
  25. Adjust the automatic transmission range selector lever cable. Range Selector Lever Cable Adjustment 
  26. Fill the transmission with fluid. Transmission Fluid Drain and Fill 
  27. If a NEW TCM has been installed into the vehicle, the NEW module needs to be reprogrammed. Service Programming System (SPS)
  28. Reprogram the transmission. Solenoid Valve Characterization Reprogramming
  29. Road test the vehicle.