High Temperature Adjustment [12/2012 - ]: Procedure

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Powertrain > Engine and ECT > Data List 

Refer to PROCEDURE - Step 6

Refer to PROCEDURE - Step 7

1. Remove the refill plug and gasket.

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2. Install the Transmission Fill Adapter into the transaxle fill port.

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3. Attach the Vacuum Regulator Manifold quick connect fitting to the Transmission Fill Adapter.

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4. Attach the Fluid Extraction Tank hose quick connect to the Vacuum Regulator Manifold.
   NOTE:

   Ensure both of the Fluid Extraction Tank valves are OFF by turning the valve handle perpendicular to the hose.

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5. Connect a shop air hose to the Fluid Extraction Tank.
   WARNING:

   Do not exceed 100 psi of shop air pressure to the Fluid Extraction Tank.

6. Open the Fluid Extraction Tank lower valve by turning the handle in-line with the hose.

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7. Open the Fluid Extraction Tank upper valve by turning the handle in-line with the hose.
   NOTE:

   Ensure the Vacuum Regulator Manifold gauge is between 2 - 5 in. Hg (10 - 20 kPa).

   HINT: 

   Vacuum will be applied to the transaxle when both of the Fluid Extraction Tank valves are opened to prevent fluid loss when removing/installing the overflow plug.

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8. Using a 6 mm hexagon socket wrench, remove the overflow plug and gasket.
   WARNING:

   A small amount of HOT fluid may leak from the overflow plug port during removal.

   HINT: 

   Place an oil drain pan under the overflow plug to collect any transaxle fluid.

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9. Install the WS ATF Level Gauge into the overflow plug port using the 12 mm Adapter and hand-tighten the WS ATF Level Gauge until it is fully seated against the oil pan.
   NOTE:

   Ensure the sliding tube is fully retracted into the gauge housing before inserting into the transaxle inspection port.

   HINT: 

   The level/measurement indicator on the WS ATF Level Gauge will read 0 mm when the sliding tube is fully retracted.

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10. Adjust the WS ATF Level Gauge to the correct measurement according to the table below and lock the sliding scale by securing the thumb screw.

    Specified Measurement

    Specified Measurement at Fluid Temperature of 85°C (185°F) to 90°C (194°F)
    Engine Idle Speed (rpm) 600 to 700	71.0 mm (2.80 in.)
    Engine Idle Speed (rpm) 700 to 800	69.0 mm (2.72 in.)

    NOTE:

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

11. Close the Fluid Extraction Tank upper valve by turning the handle perpendicular to the hose. This will stop vacuum flow to the transaxle and the vacuum gauge should read 0 in. Hg (0 kPa)

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12. Observe transaxle fluid leaking from the hose at the bottom of the WS ATF Level Gauge.
    NOTE:

    • If fluid flows out slowly and only drips, then the transaxle fluid level is within specifications.
    • If fluid flows out rapidly, allow excess fluid to drain to a slight drip.
    • If no fluid flows out, add fluid into the refill hole until fluid comes out of the overflow plug hole. Wait until the fluid flow slows and only drops come out (refer to "Fluid Level Adjustment Procedure" for instructions).
13. Confirm fluid level is within specifications per step (10) to (12).
14. Open the Fluid Extraction Tank upper valve by turning the handle in-line with the hose. This will allow vacuum to be applied to the transaxle and the vacuum gauge should read between 2 - 5 in. Hg (10 - 20 kPa).
    NOTE:

    Ensure vacuum is being applied to the transaxle before proceeding to step (15).

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15. Remove the WS ATF Level Gauge.
16. Install the overflow plug with a new gasket.

    Torque: 40 N*m (408 kgf*cm, 30 ft.*lbf) 

17. Close the Fluid Extraction Tank upper valve by turning the handle perpendicular to the hose. This will stop vacuum flow to the transaxle and the vacuum gauge should read 0 in. Hg (0 kPa).

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18. Close the Fluid Extraction Tank lower valve by turning the handle perpendicular to the hose.

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19. Disconnect the shop air hose from the Fluid Extraction Tank.
20. Disconnect the Fluid Extraction Tank hose quick connect from the Vacuum Regulator Manifold.
21. Disconnect the Vacuum Regulator Manifold quick connect from the Transmission Fill Adapter.
22. Remove the Transmission Fill Adapter from the transaxle fill port.

1. Loosen the refill plug.

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

   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.

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

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   *1	Fluid Temperature
   *2	Engine Idle Speed
   *3	Remove The Overflow Plug
   *4	Install The Overflow Plug
   *5	Time
   *6	Example: When adjusting with the engine idle speed between 600 and 700 rpm

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

   HINT: 

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

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5. 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) 

6. Lower the vehicle.
7. Turn the ignition switch off.
8. Remove the refill plug and gasket.

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9. 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.

   HINT: 

   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.).

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

    Specified Amount to be Added

    Specified Amount to be Added at Fluid Temperature of 85°C (185°F) to 90°C (194°F)
    Engine Idle Speed (rpm) 600 to 700	600 g (21.2 oz.) (700 cc (42.7 cu in.))
    Engine Idle Speed (rpm) 700 to 800	540 g (19.0 oz.) (640 cc (39.1 cu in.))

    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.

    HINT: 

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

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    *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

Torque: 49 N*m (500 kgf*cm, 36 ft.*lbf) 

Refer to PROCEDURE - Step 77

Refer to PROCEDURE - Step 79