LEMON Manuals: Even more car manuals for everyone
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 (M5U with LF4 Engine) >> Installation Procedure

Installation 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.
    Fig 1: Transmission Converter Cover And Bolts
    GM4024322Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Fastener Caution .

  1. Install the transmission converter cover (1) and tighten the bolts to 10 N.m (89 lb in).
  2. Remove the J-21366  strap from the transmission bell housing.
  3. Install the transmission to the vehicle.
  4. Fig 2: Transmission Bolts
    GM4020071Courtesy of GENERAL MOTORS COMPANY
  5. Install the six transmission to engine bolts (1, 2, 4, 5, 6, 7) and tighten to 58 N.m (43 lb ft).
  6. Align the torque converter to flexplate orientation marks made during the removal procedure.
  7. Fig 3: Torque Converter Bolts
    GM4023357Courtesy of GENERAL MOTORS COMPANY
    NOTE:

    Torque converter bolts are self-locking and must be replaced with NEW torque converter bolts every time the bolts are removed.

  8. Complete 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 holes in the flexplate with the starter opening in the engine block.
    2. Install all NEW torque converter bolts (1) and tighten to 63 N.m (46 lb ft).
  9. Fig 4: Transmission Close Out Plug
    GM4022431Courtesy of GENERAL MOTORS COMPANY
  10. Install the transmission close out plug (1).
  11. Install the starter motor. Starter Replacement (LF4 - Automatic Transmission) .
  12. Fig 5: Transmission Bolts
    GM4023910Courtesy of GENERAL MOTORS COMPANY
  13. Install the lower transmission to engine bolts (1, 2, 3, 4) and tighten to 58 N.m (43 lb ft).
  14. Fig 6: Right Center Transmission Bolt
    GM4023365Courtesy of GENERAL MOTORS COMPANY
  15. Install the right center transmission to engine bolt (1) and tighten to 58 N.m (43 lb ft).
  16. Fig 7: Catalytic Converter Brace Bracket
    GM4023375Courtesy of GENERAL MOTORS COMPANY
  17. Install the catalytic converter brace bracket (1) to the transmission. Catalytic Converter Brace Bracket Replacement (LF4)
  18. Install the transmission support. Transmission Support Replacement (Automatic RWD)Transmission Support Replacement (Automatic AWD) .
  19. Remove the transmission jack from under the vehicle.
  20. Fig 8: Fluid Cooler Inlet And Outlet Pipe
    GM4021840Courtesy of GENERAL MOTORS COMPANY
  21. Install the transmission fluid cooler inlet and outlet pipe (1) to the transmission. Transmission Fluid Cooler Inlet and Outlet Pipe Replacement (LF4 With MG9)Transmission Fluid Cooler Inlet and Outlet Pipe Replacement (LF4 With M5U) .
  22. Connect the wiring harness retainers and connectors to the transmission.
  23. Fig 9: Transmission Range Selector Lever Cable
    GM4032383Courtesy of GENERAL MOTORS COMPANY
  24. Install the cable in the bracket, then slide the retainer (4) rearward to lock the transmission range selector lever cable in the bracket.
  25. Connect the transmission range selector lever cable terminal (1) to the transmission manual shift lever pin (2).
  26. Adjust the cable. Range Selector Lever Cable Adjustment .
  27. Transmission Heat Shield Replacement »Install
  28. Install the propeller shaft. Two-Piece Propeller Shaft Replacement (LF4) .
  29. Lower the vehicle.
  30. Fig 10: Fuel Pipe Shield
    GM4019981Courtesy of GENERAL MOTORS COMPANY
  31. Install the fuel pipe shield (3). Fuel Pipe Shield Replacement (LF4)
  32. Fig 11: Radiator Outlet Pipe Retaining Bolt
    GM4016182Courtesy of GENERAL MOTORS COMPANY
  33. Install the radiator outlet pipe retaining bolt (1) to the right rear cylinder head. Radiator Outlet Pipe Replacement (LF4)
  34. Connect the inlet hose to the thermostat housing. Heater Inlet Hose Replacement (LF4) .
  35. Connect the outlet hose to the thermostat housing. Heater Outlet Hose Replacement (LF4) .
  36. Check the transmission fluid level and fill if necessary. Transmission Fluid Level and Condition Check .
  37. Perform the solenoid valve characterization. Refer to Solenoid Valve Characterization Reprogramming .
  38. NOTE:

    The Service Fast 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:

    The service fast learn procedure must be performed when any of the following repairs has been made to the transmission.

    • Pressure regulating solenoid replacement
    • Valve body repair or replacement
    • Any service/repair in response to a shift quality concern
    • Any internal transmission service, repair, overhaul, or replacement
    • Torque converter replacement
    • TCM replacement
    • Transmission assembly replacement
  39. Perform the service fast learn procedure. Refer to Transmission Service Fast Learn Procedure .