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Home >> Lexus >> 2019 >> LS 500 Base, RWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission System (Aga0E) - Service Information (2 Of 2) >> Automatic Transmission Assembly >> Removal [10/2022 - 10/2023] >> Procedure

Removal [10/2022 - 10/2023]: Procedure

  1. PRECAUTION 
    NOTE:

    After turning the engine switch off, waiting time may be required before disconnecting the cable from the negative (-) battery terminal.

    Refer to BEFORE DISCONNECTING BATTERY [10/2022 - 10/2023]

  2. REMOVE ENGINE ASSEMBLY WITH TRANSMISSION 

    Refer to REMOVAL [10/2022 - 10/2023]

  3. REMOVE AIR FUEL RATIO SENSOR (for Bank 1 Sensor 1) 

    Refer to PROCEDURE - Step 9

  4. REMOVE AIR FUEL RATIO SENSOR (for Bank 2 Sensor 1) 

    Refer to PROCEDURE - Step 10

  5. REMOVE AIR FUEL RATIO SENSOR (for Bank 1 Sensor 2) 

    Refer to PROCEDURE - Step 11

  6. REMOVE AIR FUEL RATIO SENSOR (for Bank 2 Sensor 2) 

    Refer to PROCEDURE - Step 12

  7. REMOVE NO. 4 TURBO INSULATOR 

    Refer to PROCEDURE - Step 4

  8. REMOVE NO. 2 TURBO INSULATOR 

    Refer to PROCEDURE - Step 5

  9. REMOVE CONVERTER ASSEMBLY LH 

    Refer to PROCEDURE - Step 6

  10. REMOVE CONVERTER ASSEMBLY RH 

    Refer to PROCEDURE - Step 8

  11. DISCONNECT NO. 2 ENGINE WIRE 

    Refer to PROCEDURE - Step 10

  12. REMOVE FLYWHEEL HOUSING SIDE STAY 

    Refer to PROCEDURE - Step 11

  13. REMOVE STARTER COVER 

    Refer to PROCEDURE - Step 12

  14. DISCONNECT OIL COOLER TUBE WITH OIL COOLER HOSE 
    1. Slide the 2 hose clips and disconnect the 2 oil cooler hoses from the automatic transmission assembly.
      GTY816454Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the 2 bolts and disconnect the oil cooler tube from the engine assembly and automatic transmission assembly.

      HINT: 

      When removing the automatic transmission assembly, hold the oil cooler tube in a position so that the oil cooler tube and automatic transmission assembly do not interfere with one another.

  15. REMOVE STARTER ASSEMBLY 

    Refer to PROCEDURE - Step 13

  16. REMOVE FLYWHEEL HOUSING SIDE COVER 
    1. Remove the flywheel housing side cover from the engine assembly.
  17. DISCONNECT WIRE HARNESS 
    1. Disconnect the transmission wire connector.
      GTY968613Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Wire Harness Connector Bolt
      Transmission Wire Connector Pull Down the Lever

      HINT: 

      Disconnect the claw, pull down the lever, and then disconnect the transmission wire connector

    2. Disconnect the wire harness connector.
    3. Remove the 4 bolts and disconnect the wire harness from the automatic transmission assembly.
  18. REMOVE DRIVE PLATE AND TORQUE CONVERTER SETTING BOLT 
    1. Remove the crankshaft damper sub-assembly.

      Refer to PROCEDURE - Step 3

    2. Remove the 6 drive plate and torque converter setting bolts from the drive plate and ring gear sub-assembly.
      GTY816456Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      HINT: 

      Turn the crankshaft to a position where the drive plate and torque converter setting bolts can be removed, and remove the drive plate and torque converter setting bolts while securing the crankshaft pulley bolt with a wrench.

  19. REMOVE ENGINE REAR MOUNTING MEMBER 
    1. GTY968955Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      Bolt
      Nut and Spring Washer

      Remove the nut, spring washer and 2 bolts and disconnect the throttle link connecting rod assembly from the shift control actuator assembly.

    2. Remove the 3 nuts and engine rear mounting member.
      GTY829282Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  20. REMOVE REAR ENGINE MOUNTING INSULATOR 
    1. Remove the 4 bolts and rear engine mounting insulator.
      GTY825776Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  21. REMOVE AUTOMATIC TRANSMISSION ASSEMBLY 
    1. Using a rope or equivalent, support the automatic transmission assembly at the positions shown in the illustration.
      WARNING:

      Secure the engine assembly to the engine lifter using a belt, etc. to prevent it from falling.

      GTY836351Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the 11 bolts and automatic transmission assembly.
      GTY816448Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      WARNING:
      • Do not raise the automatic transmission assembly more than necessary.
      • Make sure to confirm the center of the gravity of the automatic transmission assembly when supporting it.
      NOTE:
      • Do not use excessive force to pry out the automatic transmission assembly when separating it from the engine assembly to prevent the knock pins from being damaged.
      • When removing the automatic transmission assembly, make sure that the oil cooler tube does not become damaged.
      • Do not allow the wooden blocks or equivalent to contact the transmission oil pan assembly when supporting the automatic transmission assembly, as the transmission oil pan assembly may be deformed as a result.
  22. REMOVE TORQUE CONVERTER ASSEMBLY 
    1. Put matchmarks on the automatic transmission assembly and torque converter assembly.
      GTY809604Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Matchmark
    2. Remove the torque converter assembly from the automatic transmission assembly.
  23. INSPECT TORQUE CONVERTER ASSEMBLY 

    See step  1

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