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Home >> Isuzu >> 2004 >> Axiom Base, RWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission >> Major Components (2) >> Disassembly
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Major Components (2): Disassembly

  1. Remove the six bolts and remove the converter housing.
    Fig 1: Removing Converter Housing Bolts
    G02789131Courtesy of ISUZU MOTOR CO.
  2. Remove the oil pan.
    NOTE: Do not turn over the transmission as this will contaminate the valve body with foreign materials in the bottom of the oil pan.
    • Remove the nineteen bolts.
    • Remove oil pan by lifting the transmission case.

    Oil pan seal cutter:  J-37228

    Fig 2: Removing Oil Pan
    G02789132Courtesy of ISUZU MOTOR CO.
  3. Examine particles in oil pan.
    • Remove the magnet and use it to collect any steel chips.
    • Look carefully at the chips and particles in the oil pan and on the magnet to anticipate what type of wear you will find in the transmission:

      Steel (magnetic)......bearing, gear and clutch plate wear

      Brass (non-magnetic)... bushing wear

    Fig 3: Removing Magnet & Collecting Steel Chips
    G02789133Courtesy of ISUZU MOTOR CO.
  4. Remove the oil strainer assembly.

    Remove four bolts holding the oil strainer.

    Fig 4: Removing Oil Strainer Assembly
    G02789134Courtesy of ISUZU MOTOR CO.
  5. Remove the valve body.
    • Disconnect the connectors from the solenoid S1 (1), S2 (2), lock-up solenoid (3) and pressure control solenoid (4).
      Fig 5: Disconnecting Connectors From Solenoid
      G02789135Courtesy of ISUZU MOTOR CO.
      Fig 6: Disconnecting Pressure Control Solenoid
      G02789136Courtesy of ISUZU MOTOR CO.
    • Remove the twenty bolts from valve body.
    Fig 7: Removing Twenty Bolts From Valve Body
    G02794347Courtesy of ISUZU MOTOR CO.
  6. Remove the check valve and spring.
  7. Remove two springs from C-0 accumulator piston.
    Fig 8: Removing Springs From C-0 Accumulator Piston
    G02789138Courtesy of ISUZU MOTOR CO.
  8. Remove the accumulator piston (B-2).
  9. Remove the accumulator piston (C-2).
    • Remove accumulator pistons and springs from transmission case.
    Fig 9: Removing Accumulator Pistons
    G02789139Courtesy of ISUZU MOTOR CO.
  10. Applying compressed air to the oil hole, remove the B-0 accumulator piston and spring.
    Fig 10: Applying Compressed Air To Oil Hole
    G02793583Courtesy of ISUZU MOTOR CO.
  11. Remove the C-0 accumulator piston.
    Fig 11: Removing C-0 Accumulator Piston
    G02789141Courtesy of ISUZU MOTOR CO.
  12. Remove the second brake drum gasket.
  13. Remove the solenoid wiring.
    • Turn over transmission, remove the solenoid wiring stopper plate from the case.
    • Pull the wiring out of the transmission case.
  14. Remove the snap ring, rotor and key (4x4).
    • Remove the snap ring from the output shaft.
    • Remove the rotor and key.
    Fig 12: Removing Snap Ring (4x4)
    G02789142Courtesy of ISUZU MOTOR CO.
  15. Remove the snap ring, speedometer sensor drive gear and ball (4x2).
    • Remove the snap ring from the output shaft.
    • Remove the speedometer sensor drive gear, and ball.
  16. Remove the spacer, rotor, key and snap ring (4x2).
    • Remove the spacer, rotor and key.
    • Remove the snap ring from the output shaft.
    Fig 13: Removing Snap Ring (4x2)
    G02789143Courtesy of ISUZU MOTOR CO.