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Home >> Hummer >> 2006 >> H2 4D Utility Pickup >> Repair and Diagnosis >> Transmission >> Hydraulic Diagrams >> Automatic Transmission - 4L60-E/4L65-E/4L70-E - Removal & Installation, Service, Overhaul, Troubleshooting & Diagnosis >> Repair Instructions >> Transmission Replacement >> Installation Procedure

Installation Procedure

  1. Support the transmission with a transmission jack.
  2. Raise the transmission into place.
  3. 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.

    4. Fig 1: Identifying Six Studs & One Bolt Securing Transmission To Engine
    GM394446Courtesy of GENERAL MOTORS CORP.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  4. Install six studs and one bolt securing the transmission to the engine.

    Tighten:  Tighten the studs and the bolt to 50 N.m (37 lb ft).

    5. Fig 2: Identifying Stud & Bolt Securing Transmission To Engine (Right Side)
    GM394448Courtesy of GENERAL MOTORS CORP.
  5. Install the bolts securing the transmission to the engine oil pan.

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

  6. Install the engine harness bracket onto the appropriate transmission studs.
  7. Install the fill tube onto the transmission.
  8. Instal the engine harness bracket and fill tube nuts onto the transmission studs.

    Tighten:  Tighten the nuts to 18 N.m (13 lb ft).

    9. Fig 3: Identifying Torque Converter Access Plug
    GM408374Courtesy of GENERAL MOTORS CORP.
  9. Install the flywheel to torque converter bolts.

    Tighten:  Tighten the bolts to 63 N.m (46 lb ft).

  10. Install the torque converter access plug.
  11. Connect the cooler lines to the transmission. Refer to Transmission Fluid Cooler Hose/Pipe Replacement .
    12. Fig 4: View Of Bolt Securing Fuel Line Bracket To Left Side Of Transmission
    GM396800Courtesy of GENERAL MOTORS CORP.
  12. Install the transmission vent hose, fuel lines, and the wiring harness connectors to the transmission and park neutral switch.
    13. Fig 5: View Of Transmission Heat Shield Bolts & Shield
    GM394459Courtesy of GENERAL MOTORS CORP.
  13. Install the two bolts securing the heat shield to the transmission.

    Tighten:  Tighten the bolt to 17 N.m (13 lb ft).

  14. Install the shift cable to the shift lever ball stud and the bracket. Refer to Automatic Transmission Range Selector Lever Cable Replacement .
  15. Install the transfer case. Refer to Transfer Case Assembly Replacement in Transfer Case - BW 4484.
  16. Install the starter motor. Refer to Starter Motor Replacement in Engine Electrical.
  17. Install the exhaust pipe assembly. Refer to Catalytic Converter Replacement in Engine Exhaust.
  18. Flush the transmission oil cooler and cooling lines if necessary.
  19. Lower the vehicle.
    20. CAUTION: Refer to Battery Disconnect Caution in Cautions and Notices.
  20. Connect the battery.
  21. Fill the transmission to the proper level with DEXRON® VI transmission fluid. Refer to Transmission Fluid Check .
    22. IMPORTANT: It is recommended that transmission adaptive pressure (TAP) information be reset.
    Resetting the TAP values using a scan tool will erase all learned values in all cells. As a result, The ECM, PCM or TCM will need to relearn TAP values. Transmission performance may be affected as new TAP values are learned.
  22. Reset the TAP values. Refer to Transmission Adaptive Functions .
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