Nissan Frontier. Manual — part 1184
POWER STEERING GEAR AND LINKAGE
ST-15
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POWER STEERING GEAR AND LINKAGE
Removal and Installation
INFOID:0000000009479922
CAUTION:
Spiral cable may snap due to steering operation if the steering column is separated from the steering
gear assembly. Therefore secure the steering wheel to avoid turning.
NOTE:
When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-
ing.
REMOVAL
1. Set front wheels in the straight-ahead position.
2. Remove the front wheels and tires from the vehicle, using power tool. Refer to
.
3. Drain the power steering fluid.
4. Remove the engine under cover, using power tool. Refer to
EXT-15, "Removal and Installation"
.
5. On 4WD models, remove the front final drive, then support the drive shafts, using suitable wire. Refer to
DLN-191, "Removal and Installation"
.
6. Remove the stabilizer bar brackets and reposition the stabilizer bar. Refer to
.
7. Remove the cotter pins at the steering outer sockets.
CAUTION:
Do not reuse the cotter pins.
8. Loosen the outer socket nuts.
9. Remove the steering outer sockets from the steering knuckles,
using Tool, then remove the nuts.
CAUTION:
• Do not damage the outer socket boots.
• Do not damage the outer socket threads. Thread the ball
joint nut onto the end of the outer socket during removal.
1.
Cotter pin
2.
Bracket
3.
Insulator
4.
Steering gear assembly
5.
Washer
Front
AWGIA0253ZZ
Tool number
: HT72520000 (J-25730-A)
WGIA0130E
ST-16
< REMOVAL AND INSTALLATION >
POWER STEERING GEAR AND LINKAGE
10. Remove the high-pressure and low-pressure piping from the
steering gear assembly, then drain the fluid from the piping.
CAUTION:
Do not reuse O-ring.
11. Remove the pinch bolt from the lower joint shaft, then separate
the lower joint from the steering gear assembly.
CAUTION:
Do not damage the lower joint.
12. Remove the nuts and bolts of the steering gear assembly, using
power tool, then remove the steering gear assembly from the
vehicle.
INSTALLATION
Installation is in the reverse order of removal.
CAUTION:
Do not reuse O-ring.
• Bleed the air from the steering hydraulic system before starting engine. Refer to
.
• With the steering wheel in the straight ahead position, align the slit
of the lower joint with the projection on the dust cover. Insert the
joint until surface (A) contacts surface (B).
• After removing/installing or replacing steering components, check
wheel alignment. Refer to
FSU-6, "Front Wheel Alignment"
.
• After adjusting wheel alignment, adjust neutral position of the
steering angle sensor (if equipped with VDC). Refer to
"ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL
POSITION : Special Repair Requirement"
.
INSPECTION AFTER INSTALLATION
• Check that the steering wheel turns smoothly to the left and right locks.
• Check that the number of turns are the same from the straight-forward position to the left and right locks.
• Check that the steering wheel is in the neutral position when driving straight ahead.
LGIA0032E
LGIA0029E
LGIA0024E
SST491C
POWER STEERING OIL PUMP
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POWER STEERING OIL PUMP
Component
INFOID:0000000009479923
QR25DE
AWGIA0197GB
1.
Joint
2.
Suction pipe
3.
O-ring
4.
Front bracket
5.
Pulley
6.
Lock washer
7.
Body assembly
8.
Copper sealing washers
9.
Flow control valve and spring
10. Connector
11. Rear bracket
Apply Genuine Nissan PSF or equivalent
ST-18
< REMOVAL AND INSTALLATION >
POWER STEERING OIL PUMP
VQ40DE
Removal and Installation
INFOID:0000000009479924
NOTE:
When removing components such as hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spill-
ing.
REMOVAL
1. Drain the power steering fluid from the reservoir tank.
2. On VQ40DE model, remove the engine room cover. Refer to
EM-140, "Removal and Installation"
3. On VQ40DE model, remove cooling fan assembly. Refer to
CO-48, "Removal and Installation (Motor
4. Remove the air duct assembly. Refer to
(VQ40DE).
5. Remove the serpentine drive belt from the auto-tensioner and power steering oil pump. Refer to
EM-129, "Removal and Installation"
6. Disconnect the harness connector from pressure sensor.
7. Remove the high pressure and low pressure piping from the power steering oil pump. Refer to
8. Remove the power steering oil pump bolts, then remove the power steering pump.
INSTALLATION
Installation is in the reverse order of removal.
AWGIA0137GB
1.
Joint
2.
Suction pipe
3.
O-ring
4.
Front bracket
5.
Pulley
6.
Lock washer
7.
Body assembly
8.
Copper sealing washers
Apply Genuine Nissan PSF or equivalent
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