2008 Lexus IS FFACTORY OEM SERVICE PROCEDURE

Valve Body Assembly: Installation

  1. INSTALL TRANSMISSION VALVE BODY ASSEMBLY 
    1. Install the spring and check ball body.
      Fig 1: Identifying Check Ball Body And Spring
      G04948413Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Align the groove of the manual valve with the lever pin
      Fig 2: Aligning Groove Of Manual Valve With Lever Pin
      G04948421Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Install the 17 bolts.

      Torque: 11 N*m (112 kgf*cm, 8 ft.*lbf) 

      HINT

      Each bolt length is indicated below.

      Bolt length: 

      21 mm (0.827 in.) for bolt A 

      31 mm (1.22 in.) for bolt B 

      64 mm (2.52 in.) for bolt C 

      Fig 3: Locating Bolts
      G04948422Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Install the detent spring and detent spring cover with the bolt.
      NOTE: Make sure to install the detent spring so that its roller is perpendicularly aligned to the center of the manual valve lever.

      Torque: 10 N*m (102 kgf*cm, 7 ft.*lbf) 

      Fig 4: Locating Detent Spring Cover And Detent Spring
      G04948411Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    5. Connect the 9 connectors to the solenoid valves
    6. Connect the oil pressure switch connector.
    7. Coat a new O-ring with ATF and install to the ATF temperature sensor
    8. Install the ATF temperature sensor and lock plate with the bolt

      Torque: 10 N*m (102 kgf*cm, 7 ft.*lbf) 

      Fig 5: Locating Solenoid Valves Connector
      G04948410Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. INSTALL VALVE BODY OIL STRAINER ASSEMBLY 
    1. Coat a new O-ring with ATF and install it to the oil strainer
      NOTE: Ensure that the O-ring is not twisted or pinched.
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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.

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