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Home >> GMC >> 2018 >> Acadia Denali, FWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 5 (Automatic Transmission - 6T50 (M2D) - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Transmission Replacement (AWD) >> Installation Procedure

Installation Procedure

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  1. Raise the transmission with the transmission jack and position the transmission to the engine.
  2. GM4375284
    CAUTION:

    Refer to Fastener Caution .

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

  3. Install the oil pump flow control valve heat shield. Oil Pump Flow Control Valve Heat Shield Replacement
  4. GM4375296

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

  5. GM4375660

    Install the heater coolant pump bracket bolt. Heater Coolant Pump Replacement (LCV)

  6. Remove the transmission jack.
  7. Align the mark of the flex plate to the mark on the torque converter for reassembly.
  8. GM4316014
    NOTE:

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

    Install the torque converter to flex plate bolts (1) and tighten to 62 N.m (46 lb ft).

  9. Install the starter. Starter Replacement (LCV - AWD)
  10. Install the left transmission mount to the transmission. Transmission Mount Replacement - Left Side 
  11. Connect the wheel drive shafts to the transmission. Front Wheel Drive Half Shaft Replacement - Left Side
  12. Install the power transfer unit. Power Transfer Unit Case Replacement
  13. Install the drivetrain and front suspension cradle. Drivetrain and Front Suspension Cradle Removal and Installation (All Wheel Drive)
  14. Install the rear transmission mount to the transmission. Transmission Rear Mount Replacement (All Wheel Drive) 
  15. Install the front transmission mount to the transmission. Transmission Front Mount Replacement .
  16. Remove the engine support fixture. Engine Support Fixture
  17. GM4375268

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

  18. GM1998666

    Install the transmission fluid cooler outlet hose (5) to the transmission.

  19. Install the transmission fluid cooler pipe retainer nut (4) and tighten to 22 N.m (16 lb ft).
  20. Install the transmission fluid cooler inlet hose (1) to the transmission.
  21. Install the transmission fluid cooler pipe retainer nut (3) and tighten to 22 N.m (16 lb ft).
  22. GM1999448

    Connect the control valve body TCM electrical connector (1).

  23. Clip the engine wiring harness to the transmission.
  24. Install the transmission range select lever cable to the transmission. Range Selector Lever Cable Replacement 
  25. Adjust the automatic transmission range selector lever cable. Range Selector Lever Cable Adjustment 
  26. Install the battery tray. Battery Tray Replacement
  27. Fill the transmission with fluid. Transmission Fluid Drain and Fill 
  28. If a NEW TCM has been installed into the vehicle, the NEW module needs to be reprogrammed. Service Programming System (SPS)
    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. Road test the vehicle.
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