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Nissan Pathfinder (2007 year). Manual - part 348

PREPARATION

PS-3

2007 Pathfinder

PREPARATION

PFP:00002

Special Service Tools (SST)

EGS0011A

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.

Tool number
(Kent-Moore No.)
Tool name

Description

ST3127 S000
(See J-25765-A)
Preload gauge
1. GG9103000
(J-25765-A)
Torque wrench
2. HT62940000
(

—

)

Socket adapter
3. HT62900000
(

—

)

Socket adapter

Inspecting of pinion rotating torque and rota-
tional torque for ball joint

HT72520000
(J-25730-A)
Ball joint remover

Removing steering outer socket

1. KV48105300-4 and 5295262U10
(

—

)

Connector A and O-ring
2. KV48105300-3 and 5295262U00
(

—

)

Eye-bolt and O-ring
3. KV48103500
(J-26357 and J-26357-10)
Pressure gauge and shut-off valve
4. KV48105300-1 and 5295262U00
(

—

)

Connector B and O-ring
5. KV48105300-2
(

—

)

Nut

Measuring oil pump relief pressure

—

(J-44372)
Spring gauge

Measuring steering wheel turning force

KV40107300
(

—

)

Crimping boot bands

S-NT541

NT146

SGIA0427E

LST024

ZZA1229D

PS-4

PREPARATION

2007 Pathfinder

Commercial Service Tools

EGS0011B

KV481J0010
(J-1859A)
Steering wheel puller

Removing steering wheel

KV481J0020
(J-42578)
Steering wheel puller legs

Removing steering wheel

Tool number
(Kent-Moore No.)
Tool name

Description

LHIA0043E

LHIA0044E

Tool name

Description

Power tool

Removing nuts and bolts

PBIC0190E

NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTING

PS-5

2007 Pathfinder

NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTING

PFP:00003

NVH Troubleshooting Chart

EGS0011C

Use chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.

: Applicable

Reference page

Possible cause and suspected parts

lui

d l

vel

aul

yst

r s

t b

ll jo

t s

r s

t b

ll jo

t r

tin

r s

ll j

t e

teer

id l

age

teer

eel

teer

g f

e b

oos

ess

rop

tee

hee

r i

lla

ilt

ubb

det

teer

n o

r da

rop

r l

ose

ss o

f s

tee

teer

kag

ene

R S

EEL

Symptom

Noise

× ×

× × × × ×

× ×

× × × × × × ×

Shake

× × ×

× × × × ×

Vibration

× × × × ×

× × ×

Shimmy

× × ×

× × × ×

Shudder

× × × ×

PS-6

POWER STEERING FLUID

2007 Pathfinder

POWER STEERING FLUID

PFP:KLF20

Checking Fluid Level

EGS0011D

Check fluid level, referring to the scale on the reservoir tank.
Use HOT range for fluid temperatures of 50

– 80

C (122

– 176

F).

Use COLD range for fluid temperatures of 0

– 30

C (32

– 86

F).

CAUTION:

●

Do not overfill.

●

Do not reuse any power steering fluid.

●

Recommended fluid is Genuine NISSAN PSF or equivalent.
Refer to

CANTS"

Checking Fluid Leakage

EGS0011E

Check the hydraulic piping lines for improper attachment, leaks,
cracks, damage, loose connections, chafing and deterioration.

Run the engine until the fluid temperature reaches 50

– 80

(122

– 176

F) in the reservoir tank. Keep engine speed idle.

CAUTION:

Do not allow steering fluid reservoir tank to go below the
MIN level line. Check tank frequently and add fluid as
needed.

Turn the steering wheel to the right and left several times.

Hold the steering wheel at each “locked” position for five sec-
onds to check for fluid leakage.

CAUTION:

Do not hold steering wheel in the locked position for more than 10 seconds. (There is the possibil-
ity that the oil pump may be damaged.)

If fluid leakage at a connection is noticed, loosen the connection and then retighten. Do not over-tighten
connector as this can damage O-ring, washer and connector. Refer to

PS-20, "POWER STEERING OIL

PUMP"

and

PS-24, "HYDRAULIC LINE"

If fluid leakage from the oil pump is noticed, check the oil pump. Refer to

PS-20, "POWER STEERING

OIL PUMP"

Check steering gear boots for accumulation of fluid, indicating a leak from the steering gear.

CAUTION:

Do not reuse copper washers.

Air Bleeding Hydraulic System

EGS0011F

Incomplete air bleeding causes the following:

●

Air bubbles in reservoir tank

●

Clicking noise in oil pump

●

Excessive buzzing in oil pump

When this happens bleed the air again.

NOTE:
When the vehicle is stationary or while the steering wheel is being turned slowly, some noise may be heard
from the oil pump or gear. This noise is normal and does not affect any system.

Check for fluid leakage. Refer to

PS-6, "Checking Fluid Leakage"

Start the engine and turn the steering wheel fully to the right and left several times.

CAUTION:

Do not allow steering fluid reservoir tank to go below the MIN level line. Check tank frequently and
add fluid as needed.

Run the engine at idle speed. Hold the steering wheel at each "locked" position for three seconds.

LGIA0021E

SGIA0506E

POWER STEERING FLUID

PS-7

2007 Pathfinder

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.)

Repeat step 3 several times at about three second intervals.

Check for air bubbles, cloudy fluid and fluid leakage.

If air bubbles or cloudiness exists, perform steps 3 and 4 again until air bubbles and cloudiness do not
exist.

Stop the engine and check fluid level.

PS-8

STEERING WHEEL

2007 Pathfinder

STEERING WHEEL

PFP:48430

On-Vehicle Inspection and Service

EGS0011G

CHECKING CONDITION OF INSTALLATION

●

Check the installation condition of the steering gear assembly, front suspension, axle and steering col-
umn.

●

Check if movement exists when the steering wheel is pushed up and down, left and right and in the axial
direction.

●

Check if the mounting nuts for the steering gear assembly are
loose. Refer to

PS-15, "POWER STEERING GEAR AND LINK-

AGE"

CHECKING STEERING WHEEL PLAY

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 to

FSU-6, "Front Wheel Alignment"

Turn the tires straight ahead, check if the steering wheel is in the neutral position.

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.

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

Park vehicle on a level, dry surface and set parking brake.

Start engine.

Bring the power steering fluid up to adequate operating temperature. Make sure the fluid temperature is
approximately 50

– 80

C (122

– 176

F).

Tires need to be inflated to specified pressure. Refer to

WT-31, "Tire"

Check steering wheel turning force using Tool when steering
wheel has been turned 360

from the neutral position.

If steering wheel turning force is out of specification, inspect the
following:

●

Steering column. Refer to

PS-11, "INSPECTION AFTER

REMOVAL"

●

Power steering oil pump. Refer to

PS-20, "CHECKING

RELIEF OIL PRESSURE"

End play of the axle direction for steering wheel

: 0 mm (0 in)

LGIA0024E

Steering wheel play on the outer circumference

: 0

−

35 mm (0

−

1.38 in)

Tool number

—

(J-44372)

Steering wheel
turning force

: 39 N (4 kg-f, 9 lb-f) or less

WGIA0035E

STEERING WHEEL

PS-9

2007 Pathfinder

If steering column and power steering oil pump meet specifications, replace steering gear. Refer to

PS-15,

"Removal and Installation"

CHECKING FRONT WHEEL TURNING ANGLE

When checking the front wheel turning angle, refer to

FSU-9, "FRONT WHEEL TURNING ANGLE"

Removal and Installation

EGS0011H

REMOVAL

Set the front wheels in the straight-ahead position.

Remove the driver air bag module. Refer to

SRS-38, "REMOVAL"

Disconnect the steering wheel switches.

Remove the steering wheel center nut.

Remove the steering wheel, using Tools.

Inspect the steering wheel near the puller holes for damage. If
damage is found, replace the steering wheel.

●

Remove the steering wheel rear cover and steering wheel
switches, if required.

CAUTION:

Place a piece of tape across the spiral cable so it will not be
rotated out of position.

INSTALLATION

Installation is in the reverse order of removal.

●

Align spiral cable correctly when installing steering wheel. Make
sure that the spiral cable is in the neutral position. The neutral
position is detected by turning left 2.6 revolutions from the right
end position and ending with the locating pin at the top.

●

If equipped with VDC, refer to

BRC-126, "Adjustment of Steering

Angle Sensor Neutral Position"

for steering angle sensor adjust-

ment.

●

After the work is completed, perform self-diagnosis to make sure
no malfunction is detected. Refer to

SRS-21, "SRS Operation

Check"

●

Tighten steering wheel center nut to specification. Refer to

PS-10, "Removal and Installation"

CAUTION:

●

The spiral cable may snap due to steering operation if the cable is not installed in the correct posi-
tion.

●

With the steering linkage disconnected, the cable may snap by turning the steering wheel beyond
the limited number of turns. The spiral cable can be turned counterclockwise about 2.5 turns from
the neutral position.

Tool number

A: KV481J0010 (J-1859A)

B: KV481J0020 (J-42578)

WHIA0124E

PHIA0275E