POWER STEERING SYSTEM (for 1KD-FTV) ON-VEHICLE INSPECTION


  1. BLEED POWER STEERING SYSTEM


    1. Check the fluid level.

    2. Jack up the front of the vehicle and support it with stands.

    3. Turn the steering wheel.


      1. With the engine stopped, turn the wheel slowly from lock to lock several times.

    4. Lower the vehicle.

    5. Start the engine.


      1. Run the engine at idle for a few minutes.

    6. Turn the steering wheel.


      1. With the engine idling, turn the wheel to the left or right full lock position and keep it there for 2 to 3 seconds. Then turn the wheel to the opposite full lock position and keep it there for 2 to 3 seconds (step A).

      2. Repeat step A several times.

    7. Stop the engine.

    8. A01KEKBE17
      Text in Illustration
      *a Normal
      *b Abnormal

      Check for foaming or emulsification.

      Especially, if the system has to be bled twice because of foaming or emulsification, check for fluid leakage in the system.

    9. Check the fluid level.

  2. INSPECT FLUID LEVEL

    A01KG30E01

    1. Keep the vehicle level.

    2. With the engine stopped, check the fluid level in the oil reservoir.

      If necessary, add fluid.

      Fluid
      ATF "DEXRON" II or III

      Tech Tips

      Check that the fluid level is within the HOT level range in the reservoir tank. If the fluid is cold, check that it is within the COLD level range.

    3. Start the engine and let it idle.

    4. Turn the steering wheel from lock to lock several times to raise fluid temperature.

      Fluid temperature
      75 to 80°C (167 to 176°F)
    5. A01KEKBE17
      Text in Illustration
      *a Normal
      *b Abnormal

      Check for foaming or emulsification.

      If any foaming or emulsification is identified, bleed the power steering system.

    6. A01KG7SE10
      Text in Illustration
      *a Engine Idling
      *b Engine Stopped
      *c 5 mm (0.20 in.) or less

      With the engine idling, measure the fluid level in the oil reservoir.

    7. Stop the engine.

    8. Wait a few minutes and measure the fluid level in the oil reservoir again.

      Maximum fluid level rise
      5 mm (0.20 in.)

      If any problems are found, bleed the power steering system again.

    9. Check the fluid level.

  3. INSPECT STEERING FLUID PRESSURE


    1. Disconnect the pressure feed tube from the vane pump Click here.

    2. Connect SST as shown in the illustration.

      A01KF2OE03
      Text in Illustration
      *1 PS Gear *2 Oil Reservoir
      *3 Vane Pump *4 Attachment
      *a IN *b OUT
      SST
      09640-10010   ( 09641-01010, 09641-01020, 09641-01030 )

      Note

      Check that the valve of SST is in the open position.

    3. Bleed the power steering system.

    4. Start the engine and let it idle.

    5. Turn the steering wheel from lock to lock several times to raise the fluid temperature.

      Fluid temperature
      75 to 80 °C (167 to 176 °F)
    6. A01KGBFE04
      Text in Illustration
      *1 PS Gear
      *2 Oil Reservoir
      *3 Vane Pump
      *a Closed

      With the engine idling, close the valve of SST and check the reading on SST.

      Fluid pressure
      8800 to 9300 kPa (90 to 95 kgf/cm2, 1280 to 1350 psi)

      Note


      • Do not keep the valve closed for more than 10 seconds.

      • Do not let the fluid temperature become too high.

    7. A01KI8DE05
      Text in Illustration
      *1 PS Gear
      *2 Oil Reservoir
      *3 Vane Pump
      *a Open

      With the engine idling, fully open the valve.

    8. Measure the fluid pressure at the engine speeds of 1000 rpm and 3000 rpm.

      Fluid pressure difference
      490 kPa (5 kgf/cm2, 71 psi) or less

      Note

      Do not turn the steering wheel.

    9. A01KFOQE04
      Text in Illustration
      *1 PS Gear
      *2 Oil Reservoir
      *3 Vane Pump
      *a Open
      *b Lock position

      With the engine idling and valve fully open, turn the steering wheel to the full lock position.

      Fluid pressure
      8800 to 9300 kPa (90 to 95 kgf/cm2, 1280 to 1350 psi)

      Note


      • Do not keep the steering wheel in the full lock position for more than 10 seconds.

      • Do not let the fluid temperature become too high.

    10. Disconnect SST.

    11. Connect the pressure feed tube to the vane pump Click here.

    12. Bleed the power steering system.

  4. INSPECT STEERING EFFORT

    A01KE9V

    1. Center the steering wheel assembly.

    2. Remove the steering pad Click here.

    3. Start the engine and let it idle.

    4. Measure the steering effort in both directions.

      Steering effort (Reference)
      6.0 N*m (61 kgf*cm, 53 in.*lbf) or less

      Tech Tips

      Check the tire type, pressure and contact surfaces before making a diagnosis.

    5. Install the steering pad Click here.