LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 2021 >> Terrain SLT, 4WD >> 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) >> Removal Procedure

Removal 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. Drain the transmission fluid. Transmission Fluid Drain and Fill 
  2. GM4594687Courtesy of GENERAL MOTORS COMPANY

    Remove the transmission fluid cooler pipe nut (1) from the transmission.

  3. Remove the transmission fluid cooler pipes (2). Transmission Fluid Cooler Inlet and Outlet Pipe Replacement (LTG/LYX) .
  4. Disconnect the transmission range select lever cable from the transmission. Automatic Transmission Range Selector Lever Cable Replacement 
  5. GM4594706Courtesy of GENERAL MOTORS COMPANY

    Disconnect the control valve body transmission control module electrical connector (1), then unclip the wiring harness from the cover.

  6. Remove the body ground cable and wiring harness assembly mounting bolt at front of transmission and position ground cable and harness out of the way.
  7. GM5417428Courtesy of GENERAL MOTORS COMPANY

    Disconnect the electrical connector (2) from the transmission input speed sensor (1).

  8. Disconnect the electrical connector (5) from the auxiliary fluid accumulator (4).
  9. Remove the 2 engine wiring harness retainers (3).
  10. Plug and/or cap the pipes and the transmission to prevent contamination.
  11. GM4580120Courtesy of GENERAL MOTORS COMPANY

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

  12. GM4495272Courtesy of GENERAL MOTORS COMPANY

    Remove the upper transmission to engine bolts (1, 2, 3).

  13. Remove 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)
  14. Disconnect the wheel drive shafts from 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)
  15. Remove the transmission mount strut and transmission mount strut bracket from the transmission. Transmission Mount Strut Bracket Replacement (All Wheel Drive) , or Transmission Mount Strut Bracket Replacement (Front Wheel Drive) 
  16. Remove the starter. Starter Replacement (LYX - AWD) , or Starter Replacement (LYX - FWD) , or Starter Replacement (LTG - AWD) , or Starter Replacement (LTG - FWD)
  17. Mark the relationship of the flywheel to the torque converter for reassembly.
  18. GM4316014Courtesy of GENERAL MOTORS COMPANY

    Remove the torque converter to flywheel bolts (1).

  19. Lower the vehicle.
  20. Install the engine support fixture. Engine Support Fixture
  21. Remove the left transmission mount to transmission bolts. Transmission Mount Replacement (Left Side M3U) , or Transmission Mount Replacement (Left Side M3D/M3H) 
  22. Lower the transmission side with the support fixture to allow clearance for removal.
  23. Unclip the engine wiring harness from the transmission.
  24. Raise the vehicle.
  25. Use a transmission jack in order to support the transmission.
  26. Remove the oil pump flow control valve heat shield, if equipped. Oil Pump Flow Control Valve Heat Shield Replacement
  27. Remove the three way catalytic converter. Warm Up Three-Way Catalytic Converter Replacement (LYX) , or Warm Up Three-Way Catalytic Converter Replacement (LTG)
  28. GM4495364Courtesy of GENERAL MOTORS COMPANY

    Remove the front transmission to engine bolts (1, 2, 3).

  29. GM4495326Courtesy of GENERAL MOTORS COMPANY

    Remove the lower transmission fasteners (1, 2).

  30. 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.