Toyota Tundra. Manual — part 2683

a. Keep the vehicle horizontal.

b. With the engine stopped, check the fluid level in the reservoir.

If necessary, add fluid.

Fluid: ATF DEXRON II or III

HINT:

If the fluid is hot, check that the fluid level is within the HOT range. If the fluid is cold, check that
the fluid level is within the COLD range.

Fig. 14: Identifying Fluid Level Cold And Hot Range
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

c. Start the engine and run it at idle.

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

Fluid temperature: 80°C (176°F)

e. Check for foaming or emulsification.

Fig. 15: Checking For Foaming Or Emulsification Of P/S Fluid
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

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

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

2009 Toyota Tundra

2009 STEERING Power Steering - Tundra

g. Stop the engine.

Fig. 16: Identifying Fluid Level At Idle And Engine Off
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

h. Wait a few minutes and remeasure the fluid level in the reservoir.

Maximum fluid level rise: 5.0 mm (0.197 in.)

If the fluid level rise is greater than the maximum, bleed the power steering system.

i. Check the fluid level.

4. CHECK STEERING FLUID PRESSURE

a. Disconnect the pressure feed tube from the vane pump (see REMOVAL ).

b. Connect SST as shown in the illustration.

Fig. 17: Checking Steering Fluid Pressure Using SST
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

2009 Toyota Tundra

2009 STEERING Power Steering - Tundra

SST 09640-10010 (09641 -01010, 09641 -01030, 09641-01060)

c. Bleed the power steering system.

d. Start the engine and run it at idle.

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

Fluid temperature: 80°C (176°F)

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

Fig. 18: Steering Fluid Pressure Operation Diagram - Closed
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Minimum fluid pressure: 8336 kPa (85.0 kgf/cm

2

, 1209 psi)

If the pressure is less than the minimum, check for fluid leaks and replace parts as necessary.

g. With the engine idling, fully open the valve.

Fig. 19: Steering Fluid Pressure Operation Diagram - Open
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NOTE:

Make sure that the valve of SST is in the open position.

NOTE:



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



Do not allow the fluid temperature to become too high.

2009 Toyota Tundra

2009 STEERING Power Steering - Tundra

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

Difference in fluid pressure: 490 kPa (5.0 kgf/cm

2

, 71 psi) or less

If the pressure difference is above the specified range, check for fluid leaks and replace parts as
necessary.

i. With the engine idling and the valve fully open, turn the steering wheel left or right to the full lock

position. Observe the reading on SST.

Fig. 20: Steering Fluid Pressure Operation Diagram - Lock Position
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Minimum fluid pressure: 8336 kPa (85.0 kgf/cm

2

, 1209 psi)

If the pressure is less than the minimum, check for fluid leaks and replace parts as necessary.

j. Disconnect SST.

SST 09640-10010 (09641 -01010, 09641 -01030, 09641-01060)

k. Connect the pressure feed tube (see REASSEMBLY ).

l. Bleed the power steering system.

VANE PUMP (FOR 1GR-FE)

COMPONENTS

NOTE:

Do not turn the steering wheel.

NOTE:



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



Do not allow the fluid temperature to become too high.

2009 Toyota Tundra

2009 STEERING Power Steering - Tundra