Manual:HUMMER Hummer H3 Base 2010Page:20383 / 37523



Removal Procedure — 2010 Hummer H3 Base, Automatic Service Manual

Removal Procedure

WARNING: This page is about a different variant/trim than selected.
  1. Remove the control lever and boot. Refer to Control Lever and/or Boot Replacement .
  2. Drain the transmission fluid if necessary. Refer to Transmission Fluid Replacement .
  3. Remove the transfer case assembly. Refer to Transfer Case Assembly Replacement .
    4. Fig 1: Separating Hydraulic Clutch Line From Clutch Actuator Quick Connect
    GM1302107Courtesy of GENERAL MOTORS CORP.
  4. Using the J 42371  push back on the white plastic sleeve on the quick connect in order to separate the hydraulic clutch line from the clutch actuator quick connect.

    It is not necessary to plug the lower hose end or slave cylinder fitting as they are equipped with check valves, only minimal fluid loss may be experienced.

    5. Fig 2: Engine Wiring Harness Electrical Connector At Backup Lamp Switch
    GM1563899Courtesy of GENERAL MOTORS CORP.
  5. Disconnect the engine wiring harness electrical connector (1) from the backup lamp switch (2).
  6. Disconnect the engine wiring harness clip (3) from the clip bracket, and position the harness over the transmission.
    7. Fig 3: Wiring Harness Clip
    GM1563903Courtesy of GENERAL MOTORS CORP.
  7. Disconnect the engine wiring harness clip (1) from the clip brackets, and position the harness aside.
    8. Fig 4: Fuel Hose/Pipe Bracket & Nuts
    GM1302111Courtesy of GENERAL MOTORS CORP.
  8. Remove the nuts securing the fuel hose/pipe brackets to the transmission, and position aside.
  9. Support and secure the transmission using a suitable transmission jack.
  10. Remove the transmission crossmember. Refer to Transmission Support Crossmember Replacement .
    11. Fig 5: Removing/Installing Service Slot Plug
    GM1563906Courtesy of GENERAL MOTORS CORP.
  11. Remove the service slot plug (1).
    12. Fig 6: Transmission Mounting Bolts
    GM1302117Courtesy of GENERAL MOTORS CORP.
  12. Remove the 7 transmission mounting bolts and 2 studded mounting bolts (2).
    13. Fig 7: Transmission Mounting Bolts & Engine Dowels
    GM1302115Courtesy of GENERAL MOTORS CORP.
  13. Remove the remaining transmission mounting bolts (2).
    14. NOTE: Do not allow the transmission to hang from the clutch assembly.
  14. Pull the transmission straight back off the clutch hub splines.
    15. NOTE: Ensure clearance is maintained between the transmission and the following:
    • The catalytic converter
    • The clutch assembly
    • The engine wiring harness
    • The fuel hose/pipe brackets
    • The heater pipe
  15. Using the transmission jack, carefully lower the transmission from the vehicle.