FixVault

Control Valve Body: Removal

WARNING: This page is about a different car, the 2002 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the case side cover. See CASE SIDE COVER  . Remove the oil pump. See OIL PUMP  . Remove the valve body bolts (374-381 and 384). See Fig 1 .
  2. Remove the valve body (300) while keeping the spacer plate (370) with the transaxle. See Fig 2 . Remove the ball check valves (372 and 373) from the valve body. See Fig 3 .
  3. Remove the spacer plate (370) and gasket. See Fig 4 . Remove the ball check valves (372) from the case cover. See Fig 5 . Inspect each check valve seat in the spacer plate (370) for excessive peening.
  4. 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. See Fig 6 . Inspect all components removed from the transaxle. See appropriate OVERHAUL article in AUTOMATIC TRANSMISSIONS.
Fig 1: Identifying Valve Body Bolts
G00087748Courtesy of GENERAL MOTORS CORP.
Fig 2: Removing & Installing Control Valve Body Assembly
G00057605Courtesy of GENERAL MOTORS CORP.
Fig 3: Locating Check Balls In Valve Body
G00087750Courtesy of GENERAL MOTORS CORP.
Fig 4: Identifying Spacer Plate
G00087751Courtesy of GENERAL MOTORS CORP.
Fig 5: Locating Check Balls In Case Cover
G00087752Courtesy of GENERAL MOTORS CORP.
Fig 6: Inspecting Check Valve Seats In Spacer Plate
G00087753Courtesy of GENERAL MOTORS CORP.