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Home >> Chevrolet >> 1998 >> Venture Base, Van Cargo Extended >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transaxle Overhaul & Testing - 4T60-E >> Transaxle Disassembly >> Oil Pump & Control Valve Assembly

Oil Pump & Control Valve Assembly

  1. Remove case side cover attaching bolts, nuts and washers. Remove case side cover, seal and gaskets. Disconnect wiring harness from solenoids, temperature sensor and case connector. Remove wiring harness. See Fig 1 .
  2. Remove linkage and bracket from control valve assembly. Remove oil pump assembly bolts to remove oil pump from control valve assembly. See Fig 3 . Remove servo pipe retainer bolt and retainer plate. Remove remaining mounting bolts from control valve assembly. See Fig 2 . Remove control valve assembly from channel plate.
  3. Remove spacer plate and gaskets. Remove oil pump drive shaft. Remove 6 check balls between channel plate and spacer plate. See Fig 4 . Remove 4 check balls between spacer plate and control valve assembly. See Fig 5 . Remove solenoid screens. See Fig 1 .
Fig 1: Exploded View Of Side Cover Components
G98J01909Courtesy of GENERAL MOTORS CORP.
Fig 2: Locating Control Valve Assembly Bolts
G94A38471Courtesy of GENERAL MOTORS CORP.
Fig 3: Locating Oil Pump Assembly Bolts
G94G38469Courtesy of GENERAL MOTORS CORP.
Fig 4: Locating Control Valve Assembly Check Balls
G92H13760Courtesy of GENERAL MOTORS CORP.
Fig 5: Locating Channel Plate Check Balls
G92C13757Courtesy of GENERAL MOTORS CORP.