AUTOMATIC TRANSAXLE FLUID HIGH TEMPERATURE ADJUSTMENT

CAUTION / NOTICE / HINT

CAUTION:


  • B0087LC

    Be careful not to burn yourself when the temperature of the automatic transaxle fluid is high.

  • B0089KR

    To prevent injury due to contact with an operating V-ribbed belt or cooling fan, keep your hands and clothing away from the V-ribbed belt and cooling fans when working in the engine compartment with the engine running or the ignition switch turned to ON.

PROCEDURE


  1. ADJUST AUTOMATIC TRANSAXLE FLUID LEVEL AT HIGH TEMPERATURE


    1. Warm up the engine and then turn the ignition switch off.

    2. Check the automatic transaxle fluid temperature.


      1. Connect the GTS to the DLC3 with the ignition switch off.

      2. Turn the ignition switch to ON and turn the GTS on.

        Note

        To reduce load, make sure that all electrical systems, such as the air conditioning, lighting system, electric fan and audio system are off.

      3. Enter the following menus: Powertrain / Transmission / Data List / Engine Speed and A/T Oil Temperature No.1.


        Powertrain > Transmission > Data List
        Tester Display
        Engine Speed
        A/T Oil Temperature No.1

        Note


        • If the automatic transaxle fluid temperature tends to decrease when the automatic transaxle fluid temperature is between 85°C (185°F) and 90°C (194°F) with the engine idling, make sure that automatic transaxle fluid temperature is above 90°C (194°F) before starting work.

        • If the automatic transaxle fluid temperature tends to increase when the automatic transaxle fluid temperature is between 85°C (185°F) and 90°C (194°F) with the engine idling, make sure that automatic transaxle fluid temperature is below 85°C (185°F) before starting work.

        • If the automatic transaxle fluid temperature tends not to change when the automatic transaxle fluid temperature is between 85°C (185°F) and 90°C (194°F) with the engine idling, make sure that automatic transaxle fluid temperature is 87.5°C (189.5°F) before starting work.

    3. Depress and hold the brake pedal.

    4. Start the engine.

    5. Slowly move the shift lever from P to D, and then back to P.

      Tech Tips


      • Slowly move the shift lever to circulate the automatic transaxle fluid through each part of the automatic transaxle assembly.

      • Keep the shift lever in each position for approximately 3 seconds.

    6. Lift the vehicle.

      Note

      Set the vehicle on a lift so that the vehicle is kept level when it is lifted up (make sure the tilt angle from the front to rear and side to side of the vehicle is within +/- 1°).

    7. Remove the front fender apron seal LH.

      Click here

    8. B0083DW

      Remove the refill plug and gasket from the rear transaxle cover sub-assembly.

    9. B00842EC01
      *a SST (Filler Plug Adapter)

      Install SST (filler plug adapter) to the refill plug hole.

      SST
      09993-19025   ( 09993-10010, 09993-01030 )
    10. B0085A0C01
      *a SST (Vacuum Regulator)

      Connect SST (vacuum regulator) to SST (filler plug adapter).

      SST
      09993-19025   ( 09993-10010, 09993-01020 )
    11. B0083X5C01
      *a SST (Vacuum Regulator)
      *b SST (Tank Assy)
      *c Hose of SST (Tank Assy)
      *d Valve Handle (Upper Valve)
      *e Valve Handle (Lower Valve)

      Connect the hose of SST (tank assy) to SST (vacuum regulator).

      SST
      09993-19025   ( 09993-20010 )

      Note

      Ensure both of the valves of SST (tank assy) are closed by turning the valve handle (upper valve) and valve handle (lower valve) to the position shown in the illustration so they are perpendicular to the hoses.

    12. Connect a compressed air hose to SST (tank assy).

      Note

      Do not apply 689 kPa (7.0 kgf/cm2, 100 psi) or more of compressed air to SST (tank assy).

    13. B0085EO

      Open the lower valve of SST (tank assy) by turning the valve handle (lower valve) so it is in-line with the compressed air hose.

    14. B0088PK

      Open the upper valve of SST (tank assy) by turning the valve handle (upper valve) so it is in-line with the hose of SST (tank assy).

      Note

      B00866G

      • Make sure to turn the valve handle (upper valve) slowly.

      • Make sure the value on the gauge of SST (vacuum regulator) stays between -10 and -20 kPa (-0.1 and -0.2 kgf/cm2, -1.5 and -2.9 psi).

      • If the value on the gauge of SST (vacuum regulator) exceeds -20 kPa (-0.2 kgf/cm2, -2.9 psi), make sure to turn the valve handle (upper valve) so it is perpendicular to the hose of SST (tank assy) immediately, otherwise parts inside the automatic transaxle assembly may be damaged.

      Tech Tips

      Vacuum will be applied to the automatic transaxle assembly when both of the valves of SST (tank assy) are opened to prevent automatic transaxle fluid loss when removing/installing the overflow plug.

    15. B0087D3

      Using a 6 mm hexagon socket wrench, remove the overflow plug and gasket from the automatic transaxle oil pan sub-assembly.

      CAUTION:

      A small amount of hot automatic transaxle fluid may leak from the overflow plug port during removal.

      Tech Tips

      Place a container under the overflow plug to collect any automatic transaxle fluid that leaks out.

    16. B0084ZMC01
      *a SST (Adapter 12)
      *b SST (Overflow Level Gauge)

      Install SST (adapter 12) to SST (overflow level gauge) and then install SST (overflow level gauge) to the overflow plug hole by hand until it is fully seated against the automatic transaxle oil pan sub-assembly.

      SST
      09993-19025   ( 09993-10010, 09993-01010, 09993-01040 )

      Note

      Ensure that the sliding tube of SST (overflow level gauge) is fully retracted into the housing of SST (overflow lever gauge) before inserting it into the overflow plug hole.

      Tech Tips

      The level/measurement indicator on SST (overflow level gauge) will read 0 mm (0 in.) when the sliding tube of SST (overflow level gauge) is fully retracted.

    17. Adjust SST (overflow level gauge) to the specified measurement according to the table below and lock the sliding scale of SST (overflow level gauge) by tightening the thumb screw.

      Specified Measurement
      Specified Measurement at Automatic Transaxle Fluid Temperature of 85 to 90°C (185 to 194°F)
      Engine Idle Speed (rpm) 600 to 700 71 mm (2.80 in.)
      Engine Idle Speed (rpm) 700 to 800 69 mm (2.72 in.)

      Note

      Before proceeding with the inspection, make sure the automatic transaxle fluid temperature is between 85 to 90°C (185 to 194°F) and the engine idle speed is within the specified range in the table above.

    18. B0088DM

      Close the upper valve of SST (tank assy) by turning the valve handle (upper valve) so it is perpendicular to the hose of SST (tank assy).

      Note


      • Make sure to turn the valve handle (upper valve) slowly.

      • Make sure that the gauge of SST (vacuum regulator) reads 0 kPa (0 kgf/cm2, 0 psi).

      Tech Tips

      Vacuum that was applied to the automatic transaxle assembly will not be applied when the valve handle (upper valve) is closed.

    19. Check the automatic transaxle fluid flowing from the hose at the bottom of SST (overflow level gauge).


      • If the amount of automatic transaxle fluid that comes out of SST (overflow level gauge) is large, proceed to step [#1].

      • If no automatic transaxle fluid comes out of SST (overflow level gauge), proceed to step [#2].

    20. If the amount of automatic transaxle fluid that comes out of SST (overflow level gauge) is large. [#1]


      1. Wait until the automatic transaxle fluid flow slows and only drips come out.

        B0087V8

        Tech Tips

        The automatic transaxle fluid flow will not stop completely because the automatic transaxle fluid continues to expand as its temperature increases.

      2. B0088PK

        Open the upper valve of SST (tank assy) by turning the valve handle (upper valve) so it is in-line with the hose of SST (tank assy).

        Note

        B00866G

        • Make sure to turn the valve handle (upper valve) slowly.

        • Make sure the value on the gauge of SST (vacuum regulator) stays between -10 and -20 kPa (-0.1 and -0.2 kgf/cm2, -1.5 and -2.9 psi).

        • If the value on the gauge of SST (vacuum regulator) exceeds -20 kPa (-0.2 kgf/cm2, -2.9 psi), make sure to turn the valve handle (upper valve) so it is perpendicular to the hose of SST (tank assy) immediately, otherwise parts inside the automatic transaxle assembly may be damaged.

        Tech Tips

        Vacuum will be applied to the automatic transaxle assembly when both of the valves of SST (tank assy) are opened to prevent automatic transaxle fluid loss when removing/installing the overflow plug.

      3. Remove SST (overflow level gauge) from the overflow plug hole.

      4. Using a 6 mm hexagon socket wrench, install the overflow plug and a new gasket to the automatic transaxle oil pan sub-assembly.

        Torque:
        40 N*m  { 408 kgf*cm, 30 ft.*lbf }
      5. B0088DM

        Close the upper valve of SST (tank assy) by turning the valve handle (upper valve) so it is perpendicular to the hose of SST (tank assy).

        Note


        • Make sure to turn the valve handle (upper valve) slowly.

        • Make sure that the gauge of SST (vacuum regulator) reads 0 kPa (0 kgf/cm2, 0 psi).

        Tech Tips

        Vacuum that was applied to the automatic transaxle assembly will not be applied when the valve handle (upper valve) is closed.

      6. B0084NM

        Close the lower valve of SST (tank assy) by turning the valve handle (lower valve) so it is perpendicular to the compressed air hose.

      7. Disconnect the compressed air hose from SST (tank assy).

      8. Disconnect the hose of SST (tank assy) from SST (vacuum regulator).

      9. Disconnect SST (vacuum regulator) from SST (filler plug adapter).

      10. Remove SST (filler plug adapter) from the refill plug hole.

    21. If no automatic transaxle fluid comes out of SST (overflow level gauge). [#2]


      1. B00842EC01
        *a SST (Filler Plug Adapter)

        Remove SST (filler plug adapter) from the refill plug hole.

      2. Add automatic transaxle fluid through the refill plug hole until fluid comes out of SST (overflow level gauge).

        B0084Z6C01
        *a SST (Overflow Level Gauge) - -

        Note

        Use Toyota Genuine ATF WS.

      3. Wait until the automatic transaxle fluid flow slows and only drips come out.

        B0087V8

        Tech Tips

        The automatic transaxle fluid flow will not stop completely because the automatic transaxle fluid continues to expand as its temperature increases.

      4. B00842EC01
        *a SST (Filler Plug Adapter)

        Install SST (filler plug adapter) to the refill plug hole.

        SST
        09993-19025   ( 09993-10010, 09993-01030 )
      5. B0088PK

        Open the upper valve of SST (tank assy) by turning the valve handle (upper valve) so it is in-line with the hose of SST (tank assy).

        Note

        B00866G

        • Make sure to turn the valve handle (upper valve) slowly.

        • Make sure the value on the gauge of SST (vacuum regulator) stays between -10 and -20 kPa (-0.1 and -0.2 kgf/cm2, -1.5 and -2.9 psi).

        • If the value on the gauge of SST (vacuum regulator) exceeds -20 kPa (-0.2 kgf/cm2, -2.9 psi), make sure to turn the valve handle (upper valve) so it is perpendicular to the hose of SST (tank assy) immediately, otherwise parts inside the automatic transaxle assembly may be damaged.

        Tech Tips

        Vacuum will be applied to the automatic transaxle assembly when both of the valves of SST (tank assy) are opened to prevent automatic transaxle fluid loss when removing/installing the overflow plug.

      6. Remove SST (overflow level gauge) from the overflow plug hole.

      7. Using a 6 mm hexagon socket wrench, install the overflow plug and a new gasket to the automatic transaxle oil pan sub-assembly.

        Torque:
        40 N*m  { 408 kgf*cm, 30 ft.*lbf }
      8. B0088DM

        Close the upper valve of SST (tank assy) by turning the valve handle (upper valve) so it is perpendicular to the hose of SST (tank assy).

        Note


        • Make sure to turn the valve handle (upper valve) slowly.

        • Make sure that the gauge of SST (vacuum regulator) reads 0 kPa (0 kgf/cm2, 0 psi).

        Tech Tips

        Vacuum that was applied to the automatic transaxle assembly will not be applied when the valve handle (upper valve) is closed.

      9. B0084NM

        Close the lower valve of SST (tank assy) by turning the valve handle (lower valve) so it is perpendicular to the compressed air hose.

      10. Disconnect the compressed air hose from SST (tank assy).

      11. Disconnect the hose of SST (tank assy) from SST (vacuum regulator).

      12. Disconnect SST (vacuum regulator) from SST (filler plug adapter).

      13. Remove SST (filler plug adapter) from the refill plug hole.

    22. B00893CC01
      *a Torque Wrench Fulcrum Length

      Using SST, install the refill plug and a new gasket to the rear transaxle cover sub-assembly.

      SST
      09922-10240
      Torque:
      Specified tightening torque
      49 N*m  { 500 kgf*cm, 36 ft.*lbf }

      Tech Tips


      • Calculate the torque wrench reading when changing the fulcrum length of the torque wrench.

        Click here

      • When using SST (fulcrum length of 40 mm (1.57 in.)) + torque wrench (fulcrum length of 255 mm (10.0 in.)):

        42.4 N*m (432 kgf*cm, 31 ft.*lbf)

    23. Disconnect the GTS from the DLC3.

    24. Lift the vehicle.

    25. Clean each part.

    26. Check for automatic transaxle fluid leaks.

    27. Install the front fender apron seal LH.

      Click here

    28. Lower the vehicle.