Nissan Xterra. Instruction — part 608
POWER STEERING FLUID
ST-7
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C
D
E
F
H
I
J
K
L
M
A
B
ST
N
O
P
3. Run the engine at idle speed. Hold the steering wheel at each "locked" position for three seconds.
CAUTION:
Do not hold steering wheel in the locked position for more than 10 seconds. (There is the possibil-
ity that oil pump may be damaged.)
4. Repeat step 3 several times at about three second intervals.
5. Check for air bubbles, cloudy fluid and fluid leakage.
6. If air bubbles or cloudiness exists, perform steps 3 and 4 again until air bubbles and cloudiness do not
exist.
7. Stop the engine and check fluid level.
ST-8
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STEERING WHEEL
STEERING WHEEL
On-Vehicle Inspection and Service
INFOID:0000000009483747
CHECKING CONDITION OF INSTALLATION
• Check the installation condition of the steering gear assembly, front suspension, axle and steering column.
• Check if movement exists when the steering wheel is pushed up and down, left and right and in the axial
direction.
• Check if the nuts for the steering gear assembly are loose. Refer to
CHECKING STEERING WHEEL PLAY
1. Turn the tires straight ahead and start the engine. Lightly turn the steering wheel left and right to the point
where the tires start moving, and measure the distance that the outer circumference of the steering wheel
travels.
CHECKING NEUTRAL POSITION ON STEERING WHEEL
• Check the neutral position on the steering wheel after confirming the front wheel alignment is correct. Refer
FSU-6, "Front Wheel Alignment"
.
1. Turn the tires straight ahead, check if the steering wheel is in the neutral position.
2. If it is not in the neutral position, remove the steering wheel and reinstall it correctly on the steering stem,
within two teeth of the original position.
3. If the neutral position cannot be attained by repositioning the steering wheel within two teeth on the steer-
ing stem, loosen the tie-rod lock nuts of the steering outer sockets, then adjust the tie-rods by the same
amount in the opposite direction of the steering wheel.
CHECKING STEERING WHEEL TURNING FORCE
1. Park vehicle on a level, dry surface and set parking brake.
2. Start engine.
3. Bring the power steering fluid up to adequate operating temperature. Make sure the fluid temperature is
approximately 50
° – 80°C (122° – 176°F).
4. Tires need to be inflated to specified pressure. Refer to
End play of the axle direction for
steering wheel
: Refer to
LGIA0024E
Steering wheel play on the outer circumference : Refer to
STEERING WHEEL
ST-9
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C
D
E
F
H
I
J
K
L
M
A
B
ST
N
O
P
5. Check steering wheel turning force using Tool when steering
wheel has been turned 360
° from the neutral position.
6. If steering wheel turning force is out of specification, inspect the
following:
• Steering column. Refer to
ST-12, "Removal and Installation"
• Power steering oil pump. Refer to
7. If steering column and power steering oil pump meet specifications, replace steering gear. Refer to
CHECKING FRONT WHEEL TURNING ANGLE
When checking the front wheel turning angle, refer to
FSU-6, "Front Wheel Alignment"
Tool number
:
—
(J-44372)
Steering wheel
turning force
WGIA0035E
ST-10
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POWER STEERING OIL PUMP
POWER STEERING OIL PUMP
On-Vehicle Inspection and Service
INFOID:0000000009483748
CHECKING RELIEF OIL PRESSURE
CAUTION:
Before starting work, confirm that the belt tension is within specification. Refer to
.
1. Connect the Tool between the power steering oil pump dis-
charge connector and the high pressure hose, then bleed the air
from the hydraulic circuit with the shut-off valve fully open. Refer
ST-6, "Air Bleeding Hydraulic System"
2. Start the engine. Run the engine until the power steering fluid temperature in reservoir tank reaches 50
° –
80
°C (122° – 176°F).
CAUTION:
• Warm up the engine with the shut-off valve fully opened. If the engine is started with the shut-off
valve closed, fluid pressure in the power steering oil pump increases to maximum pressure.
This will raise fluid temperature excessively.
• Do not contact the belt with the hose while the engine is running.
3. With the engine at idle, close the shut-off valve and read the relief oil pressure.
CAUTION:
Do not close the shut-off valve of the pressure gauge for more than 10 seconds.
4. After measurement, open the shut-off valve slowly.
• If relief oil pressure is outside the specification, replace the power steering oil pump. Refer to
5. After inspection, disconnect the oil pressure gauge and oil pressure gauge adapter from the hydraulic cir-
cuit, then connect the power steering oil pump discharge connector. Add fluid and bleed the air from the
hydraulic circuit thoroughly. Refer to
ST-6, "Air Bleeding Hydraulic System"
Tool number:
Pressure gauge and shut-off valve
KV48103500
(J-26357 and J-26357-10)
Oil pump side
Connector A and O-
ring
KV48105300-4 and 5295262U10
(
—
)
Eye-bolt and O-ring
KV48105300-3 and 5295262U00
(
—
)
High pressure pip-
ing side
Connector B and O-
ring
KV48105300-1 and 5295262U00
(
—
)
Nut
KV48105300-2
( — )
WGIA0129E
Relief oil pressure
: Refer to
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