2008 Lexus GS 460FACTORY OEM SERVICE PROCEDURE

Repair Instruction: Precaution

  1. BASIC REPAIR HINT 
    1. HINTS ON OPERATIONS
      Fig 1: Precaution For Basic Repair Instruction
      G05808115Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. JACKING UP AND SUPPORTING VEHICLE
      1. Care must be taken when jacking up and supporting the vehicle. Be sure to lift and support the vehicle at the proper locations.
    3. PRECOATED PARTS
      1. Precoated parts are bolts and nuts that are coated with a seal lock adhesive at the factory.
      2. If a precoated part is retightened, loosened or moved in any way, it must be recoated with the specified adhesive.
      3. When reusing a precoated part, clean off the old adhesive and dry the part with compressed air. Then apply new seal lock adhesive appropriate to that part.
      4. Some seal lock agents harden slowly. You may have to wait for the seal lock adhesive to harden.
        Fig 2: Identifying Seal Lock Adhesive Position
        G04827550Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. GASKETS
      1. When necessary, use a sealer on gaskets to prevent leaks.
    5. BOLTS, NUTS AND SCREWS
      1. Carefully follow all the specifications for tightening torques. Always use a torque wrench.
    6. FUSES
      1. When inspecting a fuse, check that the wire of the fuse is not broken.
      2. When replacing fuses, be sure that the new fuse has the correct amperage rating. Do not exceed the rating or use one with a lower rating.
        Fig 3: Identifying Fuses Condition
        G04827551Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        SYMBOL REFERENCE

        Illustration Symbol Part Name Abbreviation
        G05808118Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        G05808119Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        		 FUSE FUSE
        G05808120Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        G05808121Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        		 MEDIUM CURRENT FUSE M-FUSE
        G05808122Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        G05808123Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        		 HIGH CURRENT FUSE H-FUSE
        G05808124Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        G05808125Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        		 FUSIBLE LINK FL
        G05808126Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        G05808127Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
        		 CIRCUIT BREAKER CB
    7. clips
      1. The removal and installation methods of typical clips used for vehicle body parts are shown in the table below.

        HINT:

        If clips are damaged during a procedure, always replace the damaged clip with a new clip.

        Fig 4: Clips Removal/Installation Chart
        G05808128Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    8. CLAWS
      1. The removal and installation methods of typical claws used for vehicle body parts are shown in the table below.

        HINT:

        If claws are damaged during a procedure, always replace the damaged claws with new caps or covers.

        Fig 5: Claws Removal/Installation Chart
        G05808129Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    9. REMOVAL AND INSTALLATION OF VACUUM HOSES
      1. To disconnect a vacuum hose, pull and twist from the end of the hose. Do not pull from the middle of the hose as this may cause damage.
        Fig 6: Identifying Vacuum Hose Handling Procedure
        G04827580Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      2. When disconnecting vacuum hoses, use tags to identify where they should be reconnected.
      3. After completing any hose related repairs, double check that the vacuum hoses are properly connected. The label under the hood shows the proper layout.
      4. When using a vacuum gauge, never force the hose onto a connector that is too large. If a hose has been stretched, it may leak air. Use a step-down adapter if necessary.
        Fig 7: Using Tags For Disconnecting Vacuum Hoses
        G04827581Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    10. TORQUE WHEN USING TORQUE WRENCH WITH EXTENSION TOOL
      Fig 8: Identifying Torque Wrench Height
      G04827582Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      1. Use the formula below to calculate special torque values for situations where SST or an extension tool is combined with the torque wrench.

        Formula: 

        T1 = L2 / (L1 + L2) * T 

        FORMULA REFERENCE

        T1 Reading of torque wrench {N*m (kgf*cm, ft.*lbf)}
        T Torque {N*m (kgf*cm, ft.*lbf)}
        L1 Length of SST or extension tool {cm (in.)}
        L2 Length of torque wrench (cm (in.)}
        Fig 9: Measuring Length Of Torque Wrench
        G04827583Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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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.

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