2007 Lexus GS 430FACTORY OEM SERVICE PROCEDURE

Automatic Transmission Assembly: Removal

  1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL 
  2. REMOVE ENGINE UNDER COVER 
  3. REMOVE ENGINE UNDER COVER NO.2 
  4. REMOVE FRONT EXHAUST PIPE ASSEMBLY 

    (See INSTALLATION )

  5. REMOVE EXHAUST PIPE NO.1 SUPPORT BRACKET SUB-ASSEMBLY 
    1. Remove the 2 bolts and exhaust pipe No.1 support bracket sub-assembly.
    Fig 1: Identifying Exhaust Pipe Support Bracket Bolts
    G05286679Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  6. REMOVE PROPELLER W/CENTER BEARING SHAFT ASSEMBLY 

    (See REMOVAL )

  7. DRAIN AUTOMATIC TRANSMISSION FLUID (See  REMOVAL  ) 
  8. REMOVE ENGINE UNDER COVER AIR GUIDE BRACKET (See  REMOVAL  ) 
  9. SEPARATE OIL COOLER INLET TUBE NO.1 
    1. Remove the 2 bolts and 2 clamps.
      Fig 2: Identifying Oil Cooler Inlet Tube Clamp And Union Nut
      G05295429Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Loosen the union nut and separate the oil cooler inlet tube No.1.
    Fig 3: Locating Oil Cooler Inlet Tube Union Nut
    G05289797Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  10. REMOVE OIL COOLER OUTLET TUBE NO.1 
    1. Loosen the union nut and separate the oil cooler outlet tube No.1.
    Fig 4: Locating Oil Cooler Outlet Tube Union Nut
    G05289798Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  11. REMOVE FLOOR SHIFT GEAR SHIFTING ROD SUB-ASSEMBLY 
    1. Remove the nut and separate the floor shift gear shifting rod.
    Fig 5: Locating Floor Shift Gear Shifting Rod Nut
    G05286607Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  12. SUPPORT AUTOMATIC TRANSMISSION ASSEMBLY 
    1. Support the automatic transmission with a transmission jack.
    Fig 6: Supporting Automatic Transmission With Transmission Jack
    G05289800Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  13. REMOVE ENGINE REAR MOUNTING MEMBER 
    1. Remove the 4 bolts and separate the engine rear mounting member.
      Fig 7: Locating Engine Rear Mounting Member Bolts
      G05286617Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Remove the 4 nuts and engine rear mounting member.
    Fig 8: Locating Engine Rear Mounting Member Nuts
    G05295435Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  14. DISCONNECT WIRE HARNESS AND CONNECTORS 
    1. Tilt down the automatic transmission.
      NOTE: Take care so that the cooling fan does not come into contact with the fan shroud.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.