Automatic Transmission Unit: Removal

WARNING: This page is about a different car, the 2003 Lexus LS 430 and 2002 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.

Remove Level Gauge
Raise Vehicle
NOTE: Make Sure That The Vehicle Is Securely Supported.
Remove Engine Under Cover
Remove Front Suspension Protector
Remove Exhaust Pipe
1. Disconnect The 2 Heated Oxygen Sensors.
  Torque: 44 N.M (450 Kgf.Cm, 32 Ft.Lbf)
  
  Hint:
  
  At The Time Of Installation, Please Refer To The Following Items.
  - Before Installing The Heated Oxygen Sensor, Twist The Sensor Wire Counterclockwise 3 And 1/2 Turns.
  - After Installing The Heated Oxygen Sensor Wire Is Not Twisted. If It Is Twisted, Remove The Heated Oxygen Sensor And Reinstall It.
2. Remove The 4 Bolts, Nuts And 2 Gaskets From The Lh And Rh Front Twc (Unleaded Gasoline) Or 2 Sub-Mufflers (Leaded Gasoline).
  Torque: 43 N.M (440 Kgf.Cm, 32 Ft.Lbf)
  
  Hint:
  
  At The Time Of Installation, Please Refer To The Following Item. Replace The Used Nuts And Gaskets With New Ones.
3. Remove The 2 Bolts And Support Bracket.
  Torque: 43 N.M (440 Kgf.Cm, 32 Ft.Lbf)
  
  Fig 1: Identifying Bolts
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Remove The 4 Bolts And Center Floor Cross Member Brace.
  Torque: 13 N.M (130 Kgf.Cm, 9 Ft.Lbf)
5. Remove The Exhaust Pipe.
  
  Fig 2: Removing Bolts And Center Floor Cross Member Brace
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Remove Lh And Rh Front Twc
Remove The 6 Nuts, 2 Gaskets, Lh And Rh Front Twc.

Torque: 62 N.M (630 Kgf.Cm, 46 Ft.Lbf)

Hint:

At The Time Of Installation, Please Refer To The Following Item. Replace The Used Nuts And Gaskets With New Ones.

Fig 3: Removing Lh & Rh Front Twc
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Remove Engine Rear Mounting Member Bracket Plate
Remove The 3 Bolts And Bracket Plate.

Torque: 5.4 N.M (55 Kgf.Cm, 48 In.Lbf)
Remove 2 Bolts And Filler Pipe
Hint:

At The Time Of Installation, Please Refer To The Following Item. Replace The Used O-Ring With A New One.

Fig 4: Removing Bolts And Bracket Plate
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Remove Heat Insulator
Remove The 4 Bolts And Heat Insulator.

Torque: 5.4 N.M (55 Kgf.Cm, 48 In.Lbf)

Fig 5: Removing Bolts And Heat Insulator
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Remove Propeller Shaft Heat Insulator
Remove The 2 Bolts And Propeller Shaft Heat Insulator.

Torque: 5.4 N.M (55 Kgf.Cm, 48 In.Lbf)
Remove Propeller Shaft
(See Removal )

Fig 6: Removing Bolts And Propeller Shaft Heat Insulator
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Remove Shift Control Rod
Remove The Nut And Disconnect The Rod.

Torque: 13 N.M (130 Kgf.Cm, 9 Ft.Lbf)

Fig 7: Disconnecting Control Rod
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Disconnect Oil Cooler Pipe
1. Loosen The 2 Union Nuts From The Transmission.
  Torque: 44 N.M (450 Kgf.Cm, 32 Ft.Lbf)
  
  NOTE: Be Careful No To Damage The Oil Cooler Pipe.
  
  Fig 8: Loosening Union Nuts
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Disconnect The 3 Set Bolts Of The Clamp.
  Torque: 4.9 N.M (50 Kgf.Cm, 43 In.Lbf)
3. Disconnect The 2 Oil Cooler Pipes From The Transmission.
  
  Fig 9: Disconnecting Set Bolts Of Clamp
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Remove Torque Converter Clutch Mounting Bolt
1. Remove The 2 Bolts And Flywheel Housing Under Cover.
  Torque: 18 N.M (185 Kgf.Cm, 13 Ft.Lbf)
  
  Fig 10: Removing Bolts And Flywheel Housing Under Cover
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Turn The Crankshaft To Gain Access To Each Bolt.
3. Hold The Crankshaft Pulley Nut With A Wrench And Remove The 6 Bolts.
  Torque: 48 N.M (490 Kgf.Cm, 35 Ft.Lbf)
  
  Hint:
  
  At The Time Of Installation, Please Refer To The Following Item. First Install Black Colored Bolt And Then The 5 Other Bolts.
  
  Fig 11: Turning Crankshaft To Gain Access To Each Bolt
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Support Transmission With Jack

Fig 12: Supporting Transmission With Jack
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Remove Engine Rear Mounting 4 Set Bolts
Torque: 26 N.M (270 Kgf.Cm, 20 Ft.Lbf)

Fig 13: Removing Engine Rear Mounting Set Bolts
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Disconnect Connectors And Wire Harness
1. Tilt Down The Transmission.
  NOTE: Take Care So That The Cooling Fan Does Not Come In Contact With The Fan Shroud.
2. Disconnect The Following Connectors:
  1. O/D Direct Clutch Speed Sensor Connector
  2. Vehicle Speed Sensor Connector
  3. Park/Neutral Position Switch Connector
  4. Solenoid Connector
3. Disconnect The Wire Harness From The Clamp On Transmission.
  
  Fig 14: Disconnecting Wire Harness From Clamp On Transmission
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Remove Transmission
Remove The 10 Bolts And Transmission.

Torque:

14 Mm Head Bolt: 37 N.M (380 Kgf.Cm, 27 Ft.Lbf)

17 Mm Head Bolt: 72 N.M (730 Kgf.Cm, 53 Ft.Lbf)

Fig 15: Removing Bolts
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Hint:

At The Time Of Installation, Please Refer To The Following Item.

Lift The Engine Front Side.

Fig 16: Lifting Engine Front Side
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002