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Home >> Chevrolet >> 2011 >> Impala LS, 3.9 M >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 7 (Automatic Transmission - 4T65-E - Repair Instructions - On Vehicle) >> Repair Instructions - On Vehicle >> Control Valve Body Replacement >> Removal Procedure

Removal Procedure

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  1. Remove the case side cover. Refer to Control Valve Body Cover Replacement .
  2. Remove the oil pump. Refer to Oil Pump Replacement .
    3. Fig 1: Identifying Valve Body Bolts
    GM164796Courtesy of GENERAL MOTORS CORP.
  3. Remove the valve body bolts (374-381, 384).
    4. Fig 2: Identifying Control Valve Body Assembly Components
    GM768829Courtesy of GENERAL MOTORS CORP.
  4. Remove the valve body (300) while keeping the spacer plate and gasket assembly (396) with the transaxle.
    5. Fig 3: Ball Check Valves
    GM49399Courtesy of GENERAL MOTORS CORP.
  5. Remove the ball check valves (372 and 373) from the valve body.
    6. Fig 4: View Of Control Valve Body Spacer Plate And Gasket Assembly
    GM768830Courtesy of GENERAL MOTORS CORP.
  6. Remove the spacer plate and gasket assembly (396).
    7. Fig 5: Ball Check Valves
    GM48229Courtesy of GENERAL MOTORS CORP.
  7. Remove the ball check valves (372) from the case cover.
    8. Fig 6: Spacer Plate And Ball Check Valve
    GM12988Courtesy of GENERAL MOTORS CORP.
  8. Inspect each check valve seat in the spacer plate (370) for excessive peening. Place a ball check valve (372) on each seat and use a flashlight in order to look for visible light between the valve and the seat.
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