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Home >> Chevrolet >> 2003 >> Venture Base, Van Cargo Extended >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transaxle Service, Removal & Installation -- 4T65-E >> Repair Instructions >> Control Valve Body Replacement >> Removal Procedure

Removal Procedure

  1. Remove the case side cover. Refer to CASE SIDE COVER REPLACEMENT  .
  2. Remove the oil pump. Refer to OIL PUMP REPLACEMENT  .
  3. Remove the valve body bolts (374-381, 384).
    Fig 1: Removing Valve Body Bolts
    G01531446Courtesy of GENERAL MOTORS CORP.
  4. Remove the valve body (300) while keeping the spacer plate (370) with the transaxle.
    Fig 2: Removing Valve Body While Keeping Spacer Plate With Transaxle
    G01531447Courtesy of GENERAL MOTORS CORP.
  5. Remove the ball check valves (372, 373) from the valve body.
    Fig 3: Removing Ball Check Valves From Valve Body
    G01531448Courtesy of GENERAL MOTORS CORP.
  6. Remove the spacer plate (370) and gasket.
    Fig 4: Removing Spacer Plate And Gasket
    G01531449Courtesy of GENERAL MOTORS CORP.
  7. Remove the ball check valves (372) from the case cover.
    Fig 5: Removing Ball Check Valves From Case Cover
    G01531450Courtesy 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.
  9. Inspect all components removed from the transaxle. Refer to TRANSFER CASE - STEYR .
    Fig 6: Inspecting Check Valve Seat In Spacer Plate For Excessive Peening
    G01531451Courtesy of GENERAL MOTORS CORP.
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