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Home >> Hummer >> 2008 >> H3 Adventure, Automatic >> Repair and Diagnosis >> Transmission >> Hydraulic Diagrams >> Automatic Transmission - 4L60-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis >> On-Vehicle Repair Instructions >> Transmission Replacement (3.7L) >> Installation Procedure

Installation Procedure

    Fig 1: View Of J 21366 Installed On Torque Converter
    GM283776Courtesy of GENERAL MOTORS CORP.
  1. Remove the J 21366  from the transmission.
  2. Ensure the torque converter is fully engaged with the transmission oil pump.
    3. IMPORTANT: Ensure clearance is maintained between the transmission and the following:
    • The catalytic converter
    • The engine wiring harness
    • The fuel hose/pipe brackets
    • The heater pipe
    • The transmission oil cooler pipes
  3. Using the transmission jack, carefully raise the transmission to the engine.
    4. Fig 2: Identifying Engine Alignment Dowels
    GM1564404Courtesy of GENERAL MOTORS CORP.
  4. Align the transmission with the engine alignment dowels (1).
    5. NOTE: Refer to Fastener Notice .
    IMPORTANT: Ensure the torque converter turns freely while tightening the transmission mounting bolts.
  5. Install the 2 transmission mounting bolts (2).

    Tighten:  Tighten the transmission mounting bolts to 50 N.m (37 lb ft).

    6. Fig 3: Identifying Transmission Mounting Bolts
    GM1564401Courtesy of GENERAL MOTORS CORP.
    IMPORTANT:
    • Ensure the studded mounting bolts (2) are located in the correct position.
    • The heater pipe (1) must be secured with the 2 upper mounting bolts.
  6. Install the remaining 7 transmission mounting bolts and 2 studded mounting bolts (2).

    Tighten:  Tighten the transmission mounting bolts to 50 N.m (37 lb ft).

  7. Install the transmission crossmember. Refer to Transmission Support Crossmember Replacement .
  8. Remove the transmission jack from under the vehicle.
  9. Connect the transmission oil cooler pipes to the transmission. Refer to Transmission Fluid Cooler Hose/Pipe Replacement .
  10. Align the torque converter to flexplate/flywheel orientation marks made during the removal procedure.
  11. Repeat the following steps for all 3 torque converter bolts:
    1. Rotate the harmonic balancer center bolt clockwise ONLY, in order to access the torque converter bolt holes in the flexplate/flywheel through the service slot.
    2. To aid in alignment of the torque converter to the flexplate/flywheel. Install all 3 torque converter bolts before fully tightening using one of the following:

      Tighten:  Tighten the torque converter bolts to 60 N.m (44 lb ft).

      • 18 mm crowfoot wrench
      • Short T50 TORX bit
    12. Fig 4: View Of Inspection Plug
    GM1350754Courtesy of GENERAL MOTORS CORP.
  12. Install the inspection plug (3) to the transmission (1).
    13. Fig 5: Locating Service Slot Plug
    GM1564311Courtesy of GENERAL MOTORS CORP.
  13. Install the service slot plug (1).
    14. Fig 6: Identifying Fuel Hose/Pipe Bracket & Nuts
    GM1564306Courtesy of GENERAL MOTORS CORP.
  14. Install the nuts (2) securing the fuel hose/pipe bracket (1) to the transmission.

    Tighten:  Tighten the fuel hose/pipe bracket nuts to 20 N.m (15 lb ft).

  15. Connect the fuel hose/pipe retainer (4) to the range selector cable bracket (3).
    16. Fig 7: Transmission Vent Hose & Retainers
    GM1302098Courtesy of GENERAL MOTORS CORP.
  16. Connect the transmission vent hose retainer (1) to the heater pipe bracket (2).
    17. Fig 8: View Of Park/Neutral Back Up Switch, Harness, Electrical Connector And Screw
    GM1564309Courtesy of GENERAL MOTORS CORP.
  17. Install the screw (1) securing the engine wiring harness (2) to the left side of the transmission.

    Tighten:  Tighten the engine wiring harness retainer to transmission screw to 9 N.m (80 lb in).

  18. Connect the park/neutral back up switch electrical connector (3).
  19. Lay the engine wiring harness over the transmission.
    20. Fig 9: View Of Screw, Engine Wiring Harness And Transmission Main Electrical Connector
    GM1566667Courtesy of GENERAL MOTORS CORP.
  20. Connect the transmission main electrical connector (3).
  21. Install the screw (1) securing the engine wiring harness (2) to the right side of the transmission.

    Tighten:  Tighten the engine wiring harness retainer to transmission screw to 9 N.m (80 lb in).

    22. Fig 10: Range Selector Cable & Components
    GM1302081Courtesy of GENERAL MOTORS CORP.
  22. Install the range selector cable (3) to the bracket (2).
  23. Install the retainer (4) to the range selector cable (3).
  24. Adjust the automatic transmission range selector cable. Refer to Range Selector Lever Cable Adjustment (3.7L)  or Range Selector Lever Cable Adjustment (5.3L) .
  25. Install the transfer case assembly. Refer to Transfer Case Assembly Replacement .
  26. Install the engine protection shield. Refer to Oil Pan Skid Plate Replacement .
  27. Install the filler tube. Refer to Transmission Fluid Filler Tube and Seal Replacement (3.7L)  or Transmission Fluid Filler Tube and Seal Replacement (5.3L) .
  28. Fill the transmission fluid if necessary. Refer to Automatic Transmission Fluid and Filter Replacement .
  29. Lower the vehicle.
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