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Home >> Lexus >> 2003 >> SC 430 >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Automatic Transmission ASSY (Removal & Installation) >> Automatic Transmission Assy >> Replacement

Automatic Transmission Assy: Replacement

Hint:

Components: See Automatic Transmission/Transaxle Components

  1. Remove Front Floor Brace Center (See  Propeller With Center Bearing Shaft Assembly  ) 
  2. Remove Rr Suspension Member Brace Rear Lower Lh (See  Propeller With Center Bearing Shaft Assembly  ) 
  3. Remove Rr Suspension Member Brace Rear Lower Rh (See  Propeller With Center Bearing Shaft Assembly  ) 
  4. Separate Oxygen Sensor (See  Propeller With Center Bearing Shaft Assembly  ) 
  5. Remove Exhaust Pipe (See  Propeller With Center Bearing Shaft Assembly  ) 
  6. Remove Front Floor Heat Insulator No. 1 (See  Propeller With Center Bearing Shaft Assembly  ) 
  7. Remove Parking Brake Cable Heat Insulator (See  Propeller With Center Bearing Shaft Assembly  ) 
  8. Remove Propeller W/Center Bearing Shaft Assy (See  Propeller With Center Bearing Shaft Assembly  ) 

    Sst 09922-10010

  9. Drain Automatic Transmission Fluid 
    1. Remove The Drain Plug, Gasket And Drain Atr
    2. Install A New Gasket And Drain Plug.

      Torque: 20 N.M (205 Kgf.Cm, 15Ft.Lbf) 

  10. Remove Engine Under Cover 
  11. Remove Engine Under Cover No. 2 
  12. Remove Front Suspension Member Brace Rear Rh 
    1. Remove The Bolt, Nut And Front Suspension Member Brace Rear Rh.
    Fig 1: Removing Front Suspension Member Brace Rear Rh
    G01320880Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  13. Remove Front Suspension Member Brace Rear Lh 
    1. Remove The Bolt, Nut And Front Suspension Member Brace Rear Lh.
    Fig 2: Removing Front Suspension Member Brace Rear Lh
    G01320881Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  14. Remove Front Suspension Member Brace Sub-Assy Rh 
    1. Remove The 4 Bolts And Front Suspension Member Brace Sub-Assy.
    Fig 3: Removing Front Suspension Member Brace Sub-Assy
    G01320882Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  15. Remove Exhaust Pipe No. 1 Support Bracket Sub-Assy 
    1. Remove The 2 Bolts And Support Bracket.
    Fig 4: Removing Support Bracket
    G01320883Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  16. Remove W/Catalyst Converter Assy 
    1. Remove The 6 Nuts, 2 Gaskets And The 2 W/Catalyst Converter Assys.
    Fig 5: Removing Gaskets And Catalyst Converter Assys
    G01320884Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  17. Remove Transmission Oil Filler Tube Sub-Assy 
    1. Remove The Atf Level Gauge.
    2. Remove The Bolt And Oil Filler Tube.
    3. Remove The O-Ring From The Oil Filler Tube.
  18. Remove Oil Cooler Outlet Tube No. 1 
    1. Remove The 3 Bolts And 3 Clamps.
      Fig 6: Removing Clamps
      G01320885Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Using Sst And Spanner, Disconnect The Oil Cooler Outlet Tube.

      Sst 09023-12700

    Fig 7: Disconnecting Oil Cooler Outlet Tube
    G01320886Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  19. Remove Oil Cooler Inlet Tube No. 1 
    1. Using Sst And Spanner, Disconnect The Oil Cooler Inlet Tube.

      Sst 09023-12700

  20. Separate Floor Shift Gear Shifting Rod Sub-Assy 
    1. Set The Shift Lever To N Position.
    2. Remove The Nut And Disconnect The Rod.
    Fig 8: Disconnecting Rod
    G01320887Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  21. Support Automatic Transmission Assy 
    Fig 9: Supporting Automatic Transmission Assy
    G01320888Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  22. Remove Engine Rear Mounting Member Sub-Assy 
    1. Remove The 4 Bolts, 4 Nuts And Engine Rear Mounting Member.
    Fig 10: Removing Engine Rear Mounting Member
    G01320889Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  23. Separate Connector 
    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 Park/Neutral Position Switch Connector.
    3. Disconnect The Transmission Wire Connector.
    4. Disconnect The 2 Speed Sensor Connectors.
    Fig 11: Disconnecting Park/Neutral Position Switch Connector
    G01320890Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  24. Separate Wire Harness 
    1. Remove The 3 Bolts And Disconnect The Wire Harness Clamp.
    Fig 12: Removing Disconnecting Wire Harness Clamp
    G01320891Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  25. Remove Flywheel Housing Under Cover 
    1. Remove The 2 Bolts And Flywheel Housing Under Cover.
    Fig 13: Removing Flywheel Housing
    G01320892Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  26. Remove Automatic Transmission Assy 
    1. Turn The Crankshaft To Gain Access To Each Bolt.
    2. Hold The Crankshaft Pulley Nut With A Wrench And Remove The 6 Bolts.
      Fig 14: Removing Crankshaft To Gain Access To Each Bolt
      G01320893Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Remove The 10 Bolts.
    4. Separate And Remove The Automatic Transmission.
    Fig 15: Removing Automatic Transmission
    G01320894Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  27. Remove Engine Mounting Insulator Rear No. 1 
    1. Remove The 4 Bolts And Engine Mounting Insulator Rear From The Automatic Transmission.
    Fig 16: Removing Engine Mounting Insulator Rear From Automatic Transmission
    G01320895Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  28. Remove Transmission Control Shaft Lever Rh 
    1. Remove The Nut And The Control Shaft Lever Together With The Shifting Rod From The Park/Neutral Position Switch.
    Fig 17: Removing Control Shaft Lever Together With Shifting Rod
    G01320896Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  29. Remove Torque Converter Clutch Assy 
  30. Inspect Torque Converter Clutch Assy (See  torque Converter Clutch And Drive Plate   ) 

    Sst 09350-32014 (09351-32020)

  31. Install Torque Converter Clutch Assy 
    1. Install The Torque Converter Clutch To The Automatic Transmission.
    2. Using Calipers And A Straight Edge, Measure Dimension A Between The Transmission And The End Surface Of The Drive Plate.
      Fig 18: Measuring Dimension A Between Transmission And End Surface Of Drive Plate
      G01320897Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Using Calipers And A Straight Edge, Measure The Dimension B Shown In The Illustration And Check That B Is Greater Than A Measured In (B)

      Standard: A + 1 Mm Or More 

      Fig 19: Measuring Dimension B
      G01320898Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  32. Install Transmission Control Shaft Lever Rh 
    1. Install The Control Shaft Lever Together With The Shifting Rod And The Nut To The Park/Neutral Position Switch Assy.

      Torque: 15.7 N.M (160 Kgf.Cm, 12 Ft.Lbf) 

    Fig 20: Installing Control Shaft Lever Together With Shifting Rod
    G01320899Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  33. Install Engine Mounting Insulator Rear No. 1 
    1. Install The Engine Mounting Insulator Rear And 4 Bolts To The Automatic Transmission.

      Torque: 11.5 N.M (117 Kgf.Cm, 8 Ft.Lbf) 

    Fig 21: Installing Engine Mounting Insulator Rear And Bolts To Automatic Transmission
    G01320900Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  34. Install Automatic Transmission Assy 
    1. Install The Automatic Transmission And 10 Bolts To The Engine.

      Torque: 

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

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

      Fig 22: Installing Automatic Transmission And Bolts To Engine
      G01320901Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Install The 6 Torque Converter Clutch Mounting Bolts.

      Torque: 48 N.M (490 Kgf.Cm, 35 Ft.Lbf) 

    Hint:

    First Install Black Colored Bolt And Then The 5 Bolts.

    Fig 23: Installing Black Colored Bolts
    G01320902Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  35. Install Flywheel Housing Under Cover 
    1. Install The Flywheel Housing Under Cover And 2 Bolts.

      Torque: 18 N.M (185 Kgf.Cm, 13 Ft.Lbf) 

    Fig 24: Installing Flywheel Housing Under Cover
    G01320903Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  36. Install Wire Harness 
    1. Install The Wire Harness Clamp And 3 Bolts.

      Torque: 5.0 N.M (51 Kgf.Cm, 44 In..Lbf) 

    Fig 25: Installing Wire Harness Clamp
    G01320904Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  37. Install Engine Rear Mounting Member Sub-Assy 
    1. Install The Engine Rear Mounting Member, 4 Nuts And 4 Bolts.

      Torque: 

      Nut: 11.5 N.M (117 Kgf.Cm, 8 Ft.Lbf) 

      Bolt: 25.5 N.M (260 Kgf.Cm, 19 Ft.Lbf) 

    Fig 26: Installing Engine Rear Mounting Member
    G01320905Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  38. Connect Floor Shift Gear Shifting Rod Sub-Assy 
    1. Temporarily Install The Rod To The Connecting Rod Swivel With Nuts.
  39. Install Oil Cooler Outlet Tube No. 1 
    1. Temporarily Install The Oil Cooler Outlet Tube.
    2. Temporarily Install The Oil Cooler Inlet Tube.
      Fig 27: Installing Oil Cooler Inlet Tube
      G01320906Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Install The 3 Clamps And 3 Bolts.

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

      Fig 28: Installing Clamps And Bolts
      G01320907Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Using Sst And Spanner, Tighten The Oil Cooler Outlet Tube.

      Sst 09023-12700

      Torque: 44 N.M (450 Kgf.Cm, 32 Ft.Lbf) 

    Fig 29: Tightening Oil Cooler Outlet Tube
    G01320908Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  40. Install Oil Cooler Inlet Tube No. 1 
    1. Using Sst And Spanner, Tighten The Oil Cooler Inlet Tube.

      Sst 09023-12700

      Torque: 44 N.M (450 Kgf.Cm, 33 Ft.Lbf) 

  41. Install Transmission Oil Filler Tube Sub-Assy 
    1. Coat A New O-Ring With Aft, And Install Them To The Oil Filler Tube.
    2. Install The Oil Filler Tube And Bolt To The Automatic Transmission.

      Torque: 12 N.M (122 Kgf.Cm, 9 Ft.Lbf) 

    3. Install The Atf Level Gauge.
  42. Install W/Catalyst Converter Assy 
    1. Install 2 New Gaskets, 2 W/Catalyst Converter Assys And 6 New Nuts.

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

    Fig 30: Installing New Gaskets, W/Catalyst Converter Assys And New Nuts
    G01320909Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  43. Install Exhaust Pipe No. 1 Support Bracket Sub-Assy 
    1. Install The Support Bracket And The 2 Bolts.

      Torque: 43 N.M (440 Kgf.Cm, 32 Ft.Lbf) 

    Fig 31: Installing Support Bracket And Bolts
    G01320910Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  44. Install Front Suspension Member Brace Sub-Assy Rh 
    1. Install The Front Suspension Member Brace Sub-Assy And 4 Bolts.

      Torque: 58 N.M (590 Kgf.Cm, 43 Ft.Lbf) 

    Fig 32: Installing Front Suspension Member Brace Sub-Assy
    G01320911Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  45. Install Front Suspension Member Brace Rear Lh 
    1. Install The Front Suspension Member Brace Rear Lh, Bolt And Nut.

      Torque: 58 N.M (590 Kgf.Cm, 43 Ft.Lbf) 

    Fig 33: Installing Front Suspension Member Brace Rear Lh
    G01320912Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  46. Install Front Suspension Member Brace Rear Rh 
    1. Install The Front Suspension Member Brace Rear Rh, Bolt And Nut.

      Torque: 58 N.M (590 Kgf.Cm, 43 Ft.Lbf) 

    Fig 34: Installing Front Suspension Member Brace Rear Rh
    G01320913Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  47. Install Propeller W/Center Bearing Shaft Assy (See  Propeller With Center Bearing Shaft Assembly  ) 
  48. Fully Tighten Center Support Bearing Assy No. 1 (See  Propeller With Center Bearing Shaft Assembly  ) 

    Sst 09922-10010

  49. Adjust Shift Lever Position (See  Adjustment  ) 
  50. Install Parking Brake Cable Heat Insulator (See  Propeller With Center Bearing Shaft Assembly  ) 
  51. Install Front Floor Heat Insulator No. 1 (See  Propeller With Center Bearing Shaft Assembly  ) 
  52. Install Exhaust Pipe (See  Propeller With Center Bearing Shaft Assembly  ) 
  53. Install Oxygen Sensor (See  Propeller With Center Bearing Shaft Assembly  ) 
  54. Install Rr Suspension Member Brace Rear Lower Rh (See  Propeller With Center Bearing Shaft Assembly  ) 
  55. Install Rr Suspension Member Brace Rear Lower Lh (See  Propeller With Center Bearing Shaft Assembly  ) 
  56. Install Front Floor Brace Center (See  Propeller With Center Bearing Shaft Assembly  ) 
  57. Add Automatic Transmission Fluid 
  58. Inspect Automatic Transmission Fluid (See  Automatic Transmission Fluid On-Vehicle Inspection  ) 
  59. Inspect Shift Lever Position (See  Adjustment  ) 
  60. Check Exhaust Gas Leak