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Home >> Chevrolet >> 2018 >> Impala Premier, Gas >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 12 (Automatic Transmission - 6T45 (MHG) - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Transmission Replacement >> Installation Procedure

Installation Procedure

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  1. Raise the transmission with the transmission jack and position the transmission to the engine.
  2. GM1998673Courtesy of GENERAL MOTORS COMPANY
    CAUTION:

    Refer to Fastener Caution .

    Install the transmission bolts (1, 3, 4) and tighten to 58 N.m (43 lb ft).

  3. Remove the transmission jack.
  4. GM2001293Courtesy of GENERAL MOTORS COMPANY
    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 flywheel bolts (1) and tighten to 62 N.m (46 lb ft).

  5. Install the starter. Refer to Starter Replacement (LFX) or Starter Replacement (LCV) .
  6. Install the front transmission mount to the transmission. Refer to Transmission Front Mount Replacement .
  7. Install the rear transmission mount to the transmission. Refer to Transmission Rear Mount Replacement .
  8. Install the left transmission mount to the transmission. Refer to Transmission Mount Replacement - Left Side .
  9. Install the intermediate drive shaft. Refer to Front Wheel Drive Intermediate Shaft Replacement (LFX with M7W) or Front Wheel Drive Intermediate Shaft Replacement (LCV with MHG) .
  10. Install the left wheel drive shaft to the transmission. Refer to Front Wheel Drive Shaft Replacement - Left Side .
  11. Install the right wheel drive shaft to the transmission. Refer to Front Wheel Drive Shaft Replacement - Right Side .
  12. Install the frame. Refer to Drivetrain and Front Suspension Frame Replacement .
  13. GM1998673Courtesy of GENERAL MOTORS COMPANY

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

  14. Remove the engine support fixture.
  15. GM1998666Courtesy of GENERAL MOTORS COMPANY

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

  16. Install the transmission fluid cooler pipe retainer nut (4) and tighten to 22 N.m (16 lb ft).
  17. Install the transmission fluid cooler inlet hose (1) to the transmission.
  18. Install the transmission fluid cooler pipe retainer nut (3) and tighten to 22 N.m (16 lb ft).
  19. GM1999448Courtesy of GENERAL MOTORS COMPANY

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

  20. Install the transmission range select lever cable and bracket on the transmission.
  21. Install the battery tray. Refer to Battery Tray Replacement .
  22. Adjust the automatic transmission range selector lever cable. Refer to Range Selector Lever Cable Adjustment .
  23. Fill the transmission with fluid. Refer to Transmission Fluid Drain and Fill .
  24. If a NEW TCM has been installed into the vehicle, the NEW module needs to be reprogrammed. Refer to Service Programming System (SPS) .
    25. NOTE:

    The Reset Transmission Adapts 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
  25. Perform the Reset Transmission Adapts. Refer to Transmission Adaptive Values Learn .
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