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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 352 (Automatic Transmission - 2ML70 - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Control Valve Upper Body Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2011 GMC Yukon, 2011 Chevrolet Tahoe, and 2011 Cadillac Escalade. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the control solenoid valve and transmission control module assembly. Refer to Control Solenoid Valve and Transmission Control Module Assembly Replacement .
    2. Fig 1: View Of Manual Shift Detent Spring w/Bolt, Control Valve Upper Body w/Bolts And Fluid Pump Seals
    GM2063165Courtesy of GENERAL MOTORS CORP.
  2. Remove the manual shift detent spring bolt (4).
  3. Remove the manual shift detent spring (5).
  4. Remove the control valve upper body bolts (3).
  5. Remove the control valve upper body (2).
  6. Remove and discard the control valve upper body seal assembly (1).
  7. Remove and discard the fluid pump seals (6).
    8. Fig 2: Control Valve Body Bolts And Shift Shaft Position Switch Bracket
    GM2063166Courtesy of GENERAL MOTORS CORP.
  8. Remove the control valve body bolts (1).
  9. Remove the automatic transmission shift shaft position switch bracket (2).
    10. Fig 3: Control Valve Channel Plate Bolts
    GM2063170Courtesy of GENERAL MOTORS CORP.
  10. Remove the control valve channel plate bolts (1).
    11. Fig 4: Control Valve Channel Plate
    GM2063173Courtesy of GENERAL MOTORS CORP.
  11. Remove the control valve channel plate (1).
    12. CAUTION:

    Do not use the old spacer plate. Install a NEW spacer plate. Reusing an old spacer plate may cause internal transmission leaks and transmission damage.

  12. Remove the control valve body spacer plate with gasket assembly (2).
  13. Remove the fluid pump ball check valve (3) from the control valve upper body assembly (4).
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