2003 Lexus LS 430FACTORY OEM SERVICE PROCEDURE

Repair Instruction: Precaution

WARNING: This page is about a different car, the 2005 Toyota 4Runner. However, it is still accessible from the selected car via links, so may be relevant.
  1. BASIC REPAIR HINT 
    1. HINTS ON OPERATIONS
      Fig 1: Identifying Basic Operations Repair Hints
      G02583170Courtesy 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 (see VEHICLE LIFT AND SUPPORT LOCATIONS  ).
        Fig 2: Identifying Seal Lock Adhesive
        G02583171Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    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 anyway, it must be recoated with the specified adhesive.
      3. When reusing precoated parts, clean off the old adhesive and dry the part with compressed air. Then apply new seal lock adhesive appropriate to the bolts and nut.
        NOTE: Perform the torque with the lower limit value of the torque tolerance.
      4. Some seal lock agents harden slowly. You may have to wait for the seal lock agent to harden.
    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 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 Medium And High Current Fuses
        G02583172Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
Factory Service Tools

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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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