2002 Lexus LS 430FACTORY OEM SERVICE PROCEDURE

Power Steering Fluid: Bleeding

  1. Check fluid level. See step  1 under INSPECTION.
  2. Jack up front of vehicle and support it with stands.
  3. Turn steering wheel.
    1. With the engine stopped, turn the wheel slowly from lock to lock several times.
  4. Lower vehicle.
  5. Start engine.
    1. Run the engine at idle for a few minutes.
  6. Turn steering wheel.
    1. With the engine idling, turn the wheel to the left or right full lock position and keep it there for 2-3 seconds, then turn the wheel to the opposite full lock position and keep it there for 2-3 seconds.
    2. Repeat step  a several times.
  7. Stop engine.
  8. Check for foaming or emulsification.
      Fig 1: Displaying Normal & Abnormal Power Steering Fluid
      G01148567Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. If the system has to be bled twice specifically because of foaming or emulsification, check for fluid leaks in the system.
  9. Check fluid level. See step  1 under INSPECTION.
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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.