Lexus GS300/400 (2000 year). Service manual — part 230

R11292

F02548

Fulcrum
Length

SST

F02545

SST

–

STEERING

POWER STEERING VANE PUMP (2JZ–GE)

SR–27

2197

8.

INSTALL WAVE WASHER

Install the washer so that its protrusions fit into the slots in the
side plate.
9.

INSTALL REAR HOUSING

(a)

Coat 2 new O–rings with power steering fluid and install
them to the housing.

(b)

Torque the 2 bolts.
Torque: 24 N·m (240 kgf·cm, 17 ft·lbf)

10.

INSTALL SPRING AND FLOW CONTROL VALVE

Install the valve facing the correct direction.
(See page

SR–19

)

11.

INSTALL SOLENOID VALVE

(a)

Install a new O–ring with power steering fluid and install
it to the valve.

(b)

Using SST, install the valve.
SST

09922–10010

Torque: 51 N·m (524 kgf·cm, 38 ft·lbf)

NOTICE:
Use SST 09922–10010 in the direction shown in the illustra-
tion.
HINT:
Use a torque wrench with a fulcrum length of 345 mm (13.58
in.).
12.

INSTALL OIL RESERVOIR

(a)

Coat a new O–ring with power steering fluid and install it
to the oil reservoir.

(b)

Torque the 3 bolts.
Torque:
Front side bolt: 13 N·m (130 kgf·cm, 9 ft·lbf)
Rear side bolts: 24 N·m (240 kgf·cm, 17 ft·lbf)

13.

INSTALL VANE PUMP PULLEY

Using SST to stop the pulley rotating, torque the pulley set nut.

SST

09960–10010 (09962–01000, 09963–01000)

Torque: 43 N·m (440 kgf·cm, 32 ft·lbf)

14.

MEASURE PS VANE PUMP ROTATING TORQUE
(See page

SR–22

)

SR0DV–01

F02556

F02557

Stopper

R06091

SR–28

–

STEERING

POWER STEERING VANE PUMP (2JZ–GE)

2198

INSTALLATION

1.

INSTALL PS VANE PUMP ASSEMBLY

(a)

Torque the 2 bolts.
Torque: 58 N·m (590 kgf·cm, 43 ft·lbf)

(b)

Connect the connector.

2.

CONNECT PRESSURE FEED TUBE

Torque the union bolt over a new gasket.
HINT:
Make sure that the stopper of the tube is touching the PS vane
pump body, as shown, before torquing the bolt.

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

3.

CONNECT RETURN HOSE

Connect the hose with the clip.

4.

INSTALL DRIVE BELT

Loosen the drive belt tension by turning the drive belt tensioner
clockwise, and install the belt.
5.

INSTALL ENGINE UNDER COVER

Tighten the 16 bolts.
6.

BLEED POWER STEERING SYSTEM
(See page

SR–3

)

SR0DG–01

R07281

Normal

Abnormal

–

STEERING

POWER STEERING FLUID

SR–3

2173

POWER STEERING FLUID

BLEEDING

1.

CHECK FLUID LEVEL
(See page

SR–4

)

2.

JACK UP FRONT OF VEHICLE AND SUPPORT IT
WITH STANDS

3.

TURN STEERING WHEEL

With the engine stopped, turn the wheel slowly from lock to lock
several times.
4.

LOWER VEHICLE

5.

START ENGINE

Run the engine at idle for a few minutes.
6.

TURN STEERING WHEEL

(a)

With the engine at idling, turn the wheel to left or right full
lock position and keep it there for 2–3 seconds, then turn
the wheel to the opposite full lock position and keep it
there for 2–3 seconds.

(b)

Repeat (a) several times.

7.

STOP ENGINE

8.

CHECK FOR FOAMING OR EMULSIFICATION

If the system has to be bled twice specifically because of foam-
ing or emulsification, check for fluid leaks in the system.
9.

CHECK FLUID LEVEL
(See page

SR–4

)

SR0DH–01

F03835

R07281

Normal

Abnormal

R11361

5 mm (0.2 in.) or less

Engine Idling

Engine Stopped

SR–4

–

STEERING

POWER STEERING FLUID

2174

INSPECTION

1.

CHECK FLUID LEVEL

(a)

Keep the vehicle level.

(b)

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

If necessary, add fluid.

Fluid: ATF DEXRON

®

II or III

HINT:
Check that the fluid level is within the HOT LEVEL range on the
reservoir cap dipstick.
If the fluid is cold, check that it is within the COLD LEVEL range.
(c)

Start the engine and run it at idle.

(d)

Turn the steering wheel from lock to lock several times to
boost fluid temperature.
Fluid temperature: 80

°

C (176

°

F)

(e)

Check for foaming or emulsification.

If there is foaming or emulsification, bleed power steering sys-
tem. (See page

SR–3

)

(f)

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

(g)

Stop the engine.

(h)

Wait a few minutes and remeasure the fluid level in the oil
reservoir.
Maximum fluid level rise: 5 mm (0.20 in.)

If a problem is found, bleed power steering system.
(See page

SR–3

)

(i)

Check the fluid level.