Toyota Tundra. Manual — part 2697

Maximum clearance: 0.03 mm (0.00118 in.)

If the clearance exceeds the maximum, replace the vane pump assembly.

3. INSPECT FLOW CONTROL VALVE ASSEMBLY

a. Coat the flow control valve with power steering fluid and check that it falls smoothly into the flow

control valve by its own weight.

If the control valve does not fall into the hole smoothly, replace the vane pump assembly.

Fig. 127: Inspecting Flow Control Valve Assembly
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b. Check the flow control valve for leakage. Close one of the holes and apply compressed air of 392

to 490 kPa (4.0 to 5.0 kgf/cm

2

, 57 to 71 psi) into the opposite side hole, and confirm that air does

not come out from the end hole.

If air leaks, replace the vane pump assembly.

Fig. 128: Checking Flow Control Valve For Leakage
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

4. INSPECT FLOW CONTROL VALVE COMPRESSION SPRING

a. Using a vernier caliper, measure the free length of the compression spring.

2009 Toyota Tundra

2009 STEERING Power Steering - Tundra

Fig. 129: Measuring Free Length Of Compression Spring
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Minimum free length: 29.2 mm (1.15 in.)

If the length is less than the minimum, replace the vane pump assembly.

5. INSPECT PRESSURE PORT UNION

a. Visually check the pressure port union for fluid leaks. If there is a leak, replace the vane pump

assembly.

6. INSPECT TOTAL PRELOAD

a. Check that the pump rotates smoothly without abnormal noise.

b. Temporarily install the service bolt.

Recommended service bolt:

Thread diameter: 10 mm (0.394 in.)

Thread pitch: 1.25 mm (0.0492 in.)

Bolt length: 50 mm (1.97 in.)

c. Using a torque wrench, measure the pumps rotating torque.

Fig. 130: Checking Pump Rotating Torque
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

Standard rotating torque: 0.3 N*m (3 kgf*cm, 2 in.*lbf) or less

2009 Toyota Tundra

2009 STEERING Power Steering - Tundra

If the rotating torque is not as specified, check the vane pump housing oil seal.

REASSEMBLY

1. INSTALL VANE PUMP HOUSING OIL SEAL

a. Coat the lip of a new oil seal with power steering fluid.

b. Using SST and a press, press in the oil seal.

Fig. 131: Installing Vane Pump Housing Oil Seal
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

SST 09950-60010 (09951 -00280), 09950-70010 (09951-07100)

2. INSTALL VANE PUMP SHAFT WITH VANE PUMP PULLEY

a. Coat the inside surface of the bushing in the vane pump front housing with power steering fluid.

b. Gradually insert the vane pump shaft with vane pump pulley.

Fig. 132: Inserting Vane Pump Shaft With Pulley In Vane Pump Front Housing
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

NOTE:

When installing parts, coat the parts indicated by arrows with power steering
fluid (see VANE PUMP (FOR 1GR-FE) ).

NOTE:

Make sure that the oil seal is installed facing in the correct direction
as shown in the illustration.

2009 Toyota Tundra

2009 STEERING Power Steering - Tundra

3. INSTALL VANE PUMP FRONT SIDE PLATE

a. Coat a new O-ring with power steering fluid and install it into the front housing.

Fig. 133: Locating O-Ring
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

b. Coat a new O-ring with power steering fluid and install it onto the front side plate.

Fig. 134: Identifying O-Ring
Courtesy of TOYOTA MOTOR SALES, U.S.A., INC.

c. Align the notch of the front side plate with the notch of the front housing, and install the front side

plate.

NOTE:



Do not damage the lip of the oil seal in the front housing.



Wrap protective tape around the spline of the vane pump shaft
with vane pump pulley in order to prevent damage to the oil
seal.

2009 Toyota Tundra

2009 STEERING Power Steering - Tundra