LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 2008 >> IS 350 >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transaxle >> Automatic Transmission Assembly >> Removal
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Automatic Transmission Assembly: Removal

  1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
    NOTE: When disconnecting the cable, some systems need to be initialized after the cable is reconnected (See INITIALIZATION ).
  2. REMOVE COOL AIR INTAKE DUCT SEAL  (See REMOVAL )
  3. REMOVE ENGINE ROOM SIDE COVER LH  (See REMOVAL )
  4. REMOVE ENGINE UNDER COVER 
  5. REMOVE NO. 2 ENGINE UNDER COVER 
  6. DRAIN COOLANT  (See ON-VEHICLE INSPECTION )
  7. DRAIN AUTOMATIC TRANSMISSION FLUID 
    1. Remove the drain plug and gasket, and drain the ATF.
    2. Install a new gasket and the drain plug.

      Torque: 20 N*m (204 kgf*cm, 15 ft.*lbf) 

  8. REMOVE NO. 1 REAR FLOOR PANEL BRACE  (See REMOVAL )
  9. REMOVE FRONT CENTER FLOOR BRACE  (See REMOVAL )
  10. REMOVE OXYGEN SENSOR  (See REMOVAL )
  11. REMOVE FRONT EXHAUST PIPE ASSEMBLY  (See REMOVAL )
  12. REMOVE OUTSIDE AIR GUIDE PLATE RH  (See REMOVAL )
  13. REMOVE FRONT FLOOR NO. 1 HEAT INSULATOR  (See REMOVAL )
  14. REMOVE PROPELLER SHAFT WITH CENTER BEARING ASSEMBLY  (See REMOVAL )
  15. REMOVE EXHAUST MANIFOLD SUB-ASSEMBLY LH  (See REMOVAL )
  16. REMOVE STARTER ASSEMBLY  (See REMOVAL )
  17. REMOVE FLYWHEEL HOUSING SIDE COVER 
    1. Remove the flywheel housing side cover from the engine assembly.
      Fig 1: Identifying Flywheel Housing Side Cover
      G05824226Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  18. REMOVE DRIVE PLATE & TORQUE CONVERTER CLUTCH SETTING BOLT 
    1. Turn the crankshaft to gain access to each bolt.
    2. Hold the crankshaft pulley nut with a wrentch and remove the 6 torque converter clutch setting bolts.
  19. SEPARATE FLOOR SHIFT GEAR SHIFTING ROD SUB-ASSEMBLY 
    1. Set the shift lever to the neutral position.
      Fig 2: Locating Torque Converter Clutch Setting Bolt
      G05824227Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the nut, and separate the floor shift gear shifting rod sub-assembly.
      Fig 3: Locating Floor Shift Gear Shifting Rod Bolt
      G05824228Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  20. SUPPORT AUTOMATIC TRANSMISSION ASSEMBLY 
    1. Support the automatic transmission assembly with a transmission jack.
      Fig 4: Supporting Automatic Transmission Assembly With Transmission Jack
      G05824229Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  21. REMOVE ENGINE REAR MOUNTING MEMBER 
    1. Remove the 4 bolts, and separate the engine rear mounting member from the body.
      Fig 5: Locating Engine Rear Mounting Member Bolts
      G05824230Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the 4 nuts and engine rear mounting member from the automatic transmission assembly.
      Fig 6: Locating Engine Rear Mounting Member Nuts
      G05824231Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  22. SEPARATE CONNECTOR 
    1. Remove the bolt and earth wire.
      Fig 7: Locating Earth Wire And Bolt
      G05824232Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Tilt down the automatic transmission assembly.
      Fig 8: Tilting Down Automatic Transmission Assembly
      G05824233Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Disconnect the park/neutral position switch connector, transmission wire connector, and 2 transmission revolution sensor connectors.
      Fig 9: Identifying Park/Neutral Position Switch And Transmission Wire Connectors
      G05824234Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT:

      Disengage the claw, press down the lever, and then disconnect the transmission wire connector.

      Fig 10: Pressing Down Lever
      G05824235Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  23. SEPARATE WIRE HARNESS 
    1. Remove the 2 bolts and separate the wire harness clamps from the automatic transmission assembly.
      Fig 11: Locating Automatic Transmission Assembly Wire Harness Clamps And Bolts
      G05824236Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  24. SEPARATE WATER BY-PASS HOSE 
    1. Remove the bolt and water by-pass hose clamp.
    2. Separate the 2 water by-pass hoses from the transmission oil cooler.
      NOTE: Use a container to catch any coolant which flows out of the water by-pass hoses.
      Fig 12: Identifying Bolt And Water By-Pass Hose Clamp
      G05824237Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  25. REMOVE AUTOMATIC TRANSMISSION ASSEMBLY 
    1. Remove the 9 bolts and automatic transmission assembly.
      NOTE: Do not use excess force to pry on the transmission assembly.
      Fig 13: Locating Automatic Transmission Assembly Bolts
      G05824238Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  26. REMOVE REAR NO. 1 ENGINE MOUNTING INSULATOR 
    1. Remove the 4 bolts and rear No.1 engine mounting insulator from the automatic transmission assembly.
      Fig 14: Locating Rear No.1 Engine Mounting Insulator Bolts
      G05824239Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  27. REMOVE TRANSMISSION CONTROL SHAFT LEVER RH 
    1. Remove the nut and transmission control shaft lever RH from the park/neutral position switch assembly.
      Fig 15: Identifying Transmission Control Shaft Lever RH
      G05824240Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  28. REMOVE TRANSMISSION OIL COOLER 
    1. Remove the 3 bolts and transmission oil cooler and spacer from the automatic transmission assembly.
      Fig 16: Locating Transmission Oil Cooler And Bolts
      G05824241Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the 4 O-rings from the spacer.
      Fig 17: Identifying Spacer O-Rings
      G05824242Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  29. REMOVE TORQUE CONVERTER CLUTCH ASSEMBLY 
    1. Put matchmarks on the torque converter and transmission case.
    2. Remove the torque converter from the automatic transmission assembly.
    3. Fig 18: Identifying Matchmarks On Torque Converter And Transmission Case
      G05824243Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  30. INSPECT TORQUE CONVERTER CLUTCH ASSEMBLY  (See INSPECTION  )