AUTOMATIC TRANSAXLE FLUID HIGH TEMPERATURE ADJUSTMENT

PROCEDURE


  1. ADJUST FLUID LEVEL AT HIGH TEMPERATURE

    CAUTION:


    • Use caution while the engine is idling and the radiator fan is operating.

    • Be careful not to burn yourself when the fluid temperature is high.


    1. Warm up and stop the engine.[#4]

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

    3. 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.

    4. Enter the following menus: Powertrain / ECT / Data List.

    5. Select the Data List menu: A/T Oil Temperature 1


      Powertrain > ECT > Data List
      Tester Display
      A/T Oil Temperature 1
    6. Select the Data List menu: Engine Speed


      Powertrain > ECT > Data List
      Tester Display
      Engine Speed
    7. Check the ATF temperature.

      Note


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

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

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

    8. Depress and hold the brake pedal.

    9. Start the engine.

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

    11. 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°).

    12. Remove the No. 1 engine under cover.

      Click here

    13. Remove the rear engine under cover LH.

      Click here

    14. A01GBKM

      Loosen the refill plug.

    15. A01GAAR

      Using a 6 mm hexagon socket wrench, remove the overflow plug and gasket.[#1]

      CAUTION:

      Be careful as the fluid coming out of the overflow plug hole is hot.

      Note


      • Before removing the overflow plug, make sure that the fluid temperature is between 85 and 90°C and the engine idle speed is within the range specified in the tables provided in step #3.

      • When adding fluid (step #3), add the specified amount in accordance with the engine idle speed.

      • If fluid does not come out, install the overflow plug, add fluid to the refill hole until fluid comes out, and perform the procedure from step #4 again.


      1. A01GAHIC01
        *a Fluid Temperature [°C]
        *b Engine Idle Speed [rpm]
        *c Remove The Overflow Plug
        *d Install The Overflow Plug
        *e Time
        *f Example: When adjusting with the engine idle speed between 600 and 700 rpm

        Make sure that the fluid temperature and engine speed remain within the appropriate range until the overflow plug is tightened in step #2.

    16. A01GD9J

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

      Tech Tips

      If the fluid temperature is increasing, the fluid flow will not completely stop because the fluid expands as its temperature increases.

    17. Using a 6 mm hexagon socket wrench, install the overflow plug with a new gasket.[#2]

      Torque:
      40 N*m  { 408 kgf*cm, 30 ft.*lbf }
    18. Lower the vehicle.

    19. Turn the ignition switch off.

    20. A01GBKM

      Remove the refill plug and gasket.

    21. A01GCM5

      Install a hose and funnel to the refill hole as shown in the illustration.

      Note


      • When the fluid level is correct and the fluid temperature is approximately 40°C, the transaxle is designed so that the fluid level is at the same height as the end of the overflow tube. When adjusting the fluid level with a fluid temperature of 85 to 90°C, drain the amount of fluid that has expanded due to heat (step #1). After the fluid has been drained, make sure to add the amount of fluid specified in the tables below.

      • Pay extra attention when adding fluid because adding an excessive or insufficient amount of fluid may cause a malfunction in the automatic transaxle.

      • Do not insert the hose into the refill hole excessively.

      • Be sure to use tape or equivalent to prevent the hose from sagging.

      Tech Tips

      Make sure to use a hose with a length of 1250 mm (4.1 ft.) and an outer diameter of 16 mm (0.63 in.).

    22. Add the specified amount of fluid to the refill hole.[#3]


      1. If determining the specific amount of fluid to be added, refer to the table below either for Automatic Transaxle.

        Specified Amount to be Added
        Specified Amount to be Added atFluid Temperature of 85°C (185°F) to90°C (194°F)((g (oz.))
        Engine IdleSpeed (rpm)600 to 700 460 g (16.2 oz.)(550 cc (33.6 cu in.))
        Engine IdleSpeed (rpm)700 to 800 420 g (14.8 oz.)(500 cc (30.5 cuin.))

        Note


        • If fluid remains inside the hose, the amount of fluid will be outside the specifications. Therefore, when adding fluid, make sure that no fluid remains inside the hose.

        • The acceptable margin of error when adding fluid is +/- 20 g (0.7 oz.) or +/- 25 cc (1.5 cu in.).

        • The values provided in the brackets in the table are for reference when the temperature of the fluid to be added is between 10°C (50°F) and 30°C (86°F).

        • Use Toyota Genuine ATF WS.

        • If fluid comes out (the amount of fluid is not as specified), perform the procedure from step #4 again.

      2. If determining the specified amount of fluid to be added by volume, calculate it based on weight and density at each temperature.

        A01GCDTC01
        *a This example shows the volume of fluid to be added with a fluid temperature of 10°C (50°F) to 30°C (86°F). *b Density [g / cc]
        *c Temperature of fluid to be measured [°C] *d Relation between temperature and density of Toyota genuine ATF WS
    23. Install the refill plug with a new gasket.

      Torque:
      49 N*m  { 500 kgf*cm, 36 ft.*lbf }
    24. Remove the intelligent tester from the DLC3.

  2. REBUILD WORK


    1. Lift the vehicle.

    2. Clean each part.

    3. Check for fluid leaks.

    4. Install the rear engine under cover LH.

      Click here

    5. Install the No. 1 engine under cover.

      Click here

    6. Lower the vehicle.