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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 360 (Automatic Transmission - 6L80/6L90 - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Transmission Replacement >> Installation Procedure

Installation Procedure

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  1. Install the J 21366 onto the transmission bell housing to retain the torque converter.
  2. Support the transmission with a transmission jack.
  3. Raise the transmission into place while simultaneously installing the fluid indicator tube.
  4. Remove the J 21366 from the transmission.
  5. Slide the transmission straight onto the locating pins while lining up the marks on the flywheel and the torque converter.

    The torque converter must rotate freely by hand.

    6. Fig 1: Transmission Mounting Bolts
    GM1708536Courtesy of GENERAL MOTORS CORP.
    CAUTION:

    Refer to Fastener Caution .

  6. Install the 8 bolts securing the transmission to the engine and tighten to 50 N.m (37 lb ft).
    7. Fig 2: Transmission Vent Hose
    GM1705102Courtesy of GENERAL MOTORS CORP.
  7. Connect the transmission vent hose.
  8. Install the wire harness to the transmission.
  9. Connect the transmission electrical connector to the transmission.
    10. Fig 3: Range Selector Cable And Cable Bracket Retainer
    GM1707190Courtesy of GENERAL MOTORS CORP.
  10. Install the range selector cable (2) to the range selector cable bracket and the range selector lever ball stud.
  11. Install the range selector cable retaining clip (1) to the transmission range selector cable.
    12. Fig 4: Transmission Heat Shield And Bolts
    GM1708338Courtesy of GENERAL MOTORS CORP.
  12. Install the transmission heat shield.
  13. Install the 2 bolts securing the heat shield to the transmission and tighten to 17 N.m (13 lb ft).
  14. Install the transfer case, if equipped. Refer to the appropriate procedure:
    15. Fig 5: Transfer Case Vent Tube Hose
    GM1708319Courtesy of GENERAL MOTORS CORP.
  15. Connect the vent hose and electrical connectors to the transfer case, if equipped.
    16. Fig 6: Flywheel To Torque Converter Bolts
    GM1708265Courtesy of GENERAL MOTORS CORP.
  16. From the torque converter access hole, push the torque converter forward to seat the converter pilot in the crank bore.
  17. If reusing the torque converter bolts, clean the bolt threads and apply LOCTITE 242, GM P/N 12345382 (Canadian P/N 10953489), or equivalent to the threads prior to installation.
  18. Install the flywheel to torque converter bolts and tighten to 65 N.m (48 lb ft).
    19. Fig 7: Right Flywheel Inspection Cover
    GM1705430Courtesy of GENERAL MOTORS CORP.
  19. Install the right flywheel inspection cover and bolt. Tighten the bolt to 12 N.m (106 lb in).
  20. Install the starter motor. Refer to Starter Replacement .
    21. Fig 8: Left Flywheel Inspection Cover
    GM1708215Courtesy of GENERAL MOTORS CORP.
  21. Install the left flywheel inspection cover and bolt. Tighten the bolt to 12 N.m (106 lb in).
    22. Fig 9: Torque Converter Access Plug
    GM408374Courtesy of GENERAL MOTORS CORP.
  22. Install the torque converter access plug.
  23. If the vehicle is equipped with a transfer case, install the front propeller shaft. Refer to Front Propeller Shaft Replacement .
  24. Install the catalytic converter pipe. Refer to Catalytic Converter Replacement (with Exhaust Clamp) .
  25. Install the transmission mount. Refer to Transmission Mount Replacement (2WD) , Transmission Mount Replacement (4WD) .
  26. Install the transmission crossmember. Refer to Transmission Support Crossmember Replacement (4WD 2500 Series) , Transmission Support Crossmember Replacement (4WD 1500 Series) , Transmission Support Crossmember Replacement (2WD 2500 Series) , Transmission Support Crossmember Replacement (2WD 1500 Series) .
  27. Remove the transmission jack.
  28. Install the rear propeller shaft. Refer to Rear Propeller Shaft Replacement .
    29. Fig 10: Oil Cooling Lines And Bolt
    GM1705099Courtesy of GENERAL MOTORS CORP.
  29. Connect the oil cooler lines (1) to the transmission. Refer to Transmission Fluid Cooler Hose/Pipe Replacement 
  30. Lower the vehicle.
  31. Connect the negative battery cable. Refer to Battery Negative Cable Disconnection and Connection
  32. Fill the transmission to the proper level. Refer to Fluid Capacity Specifications .
  33. If a NEW TCM has been installed into the vehicle, the NEW module needs to be reprogrammed. Refer to Service Programming System (SPS) .
    34. NOTE:

    The Service Fast Learn 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
  34. Perform the Reset Transmission Adapts. Refer to Reset Transmission Adapts .
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