Nissan Pathfinder (2007 year). Manual — part 348
PREPARATION
PS-3
C
D
E
F
H
I
J
K
L
M
A
B
PS
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
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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
F
lui
d l
e
vel
A
ir
i
n
h
y
dr
aul
ic
s
yst
e
m
O
u
te
r s
o
c
k
e
t b
a
ll jo
in
t s
w
in
g
in
g
fo
rc
e
O
u
te
r s
o
c
k
e
t b
a
ll jo
in
t r
o
ta
tin
g
to
rq
u
e
O
u
te
r s
o
ck
et
b
a
ll j
o
in
t e
nd
pl
a
y
S
teer
in
g
f
lu
id l
e
ak
age
S
teer
in
g
w
h
eel
pl
a
y
S
teer
in
g
ge
ar
r
a
ck
sl
id
in
g f
o
rc
e
D
ri
v
e b
e
lt
l
oos
en
ess
Im
p
rop
er
s
tee
ri
ng
w
hee
l
Im
pr
o
p
e
r i
n
s
ta
lla
ti
on
or
l
o
o
s
en
es
s
of
t
ilt
l
o
c
k
l
e
ve
r
M
o
u
n
ti
n
g
r
ubb
er
det
er
io
ra
ti
on
S
teer
in
g
co
lu
m
n
d
e
fo
rm
a
ti
o
n o
r da
m
a
ge
Im
p
rop
er
i
n
st
al
la
ti
o
n
o
r l
o
ose
n
e
ss o
f s
tee
ri
ng
co
lu
m
n
S
teer
in
g
l
in
kag
e
l
o
os
ene
ss
PR
OP
EL
LE
R S
H
A
F
T
D
IF
F
ER
EN
TI
AL
W
H
EEL
H
U
B
SU
SP
EN
SI
O
N
TI
RE
S
RO
AD
W
H
E
E
L
D
R
IV
E
SH
AF
T
BR
AK
ES
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
MA-11, "RECOMMENDED FLUIDS AND LUBRI-
Checking Fluid Leakage
EGS0011E
Check the hydraulic piping lines for improper attachment, leaks,
cracks, damage, loose connections, chafing and deterioration.
1.
Run the engine until the fluid temperature reaches 50
°
– 80
°
C
(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.
2.
Turn the steering wheel to the right and left several times.
3.
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.)
4.
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
5.
If fluid leakage from the oil pump is noticed, check the oil pump. Refer to
6.
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.
1.
Check for fluid leakage. Refer to
PS-6, "Checking Fluid Leakage"
2.
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.
3.
Run the engine at idle speed. Hold the steering wheel at each "locked" position for three seconds.
LGIA0021E
SGIA0506E
POWER STEERING FLUID
PS-7
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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.)
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.
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-
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 to
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
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
●
Power steering oil pump. Refer to
.
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
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2007 Pathfinder
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-9, "FRONT WHEEL TURNING ANGLE"
.
Removal and Installation
EGS0011H
REMOVAL
1.
Set the front wheels in the straight-ahead position.
2.
Remove the driver air bag module. Refer to
3.
Disconnect the steering wheel switches.
4.
Remove the steering wheel center nut.
5.
Remove the steering wheel, using Tools.
6.
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
●
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
PS-10
STEERING COLUMN
2007 Pathfinder
STEERING COLUMN
PFP:48810
Removal and Installation
EGS0011I
CAUTION:
●
Do not exert any axial load or impact to the steering column.
●
Do not move the steering gear while the steering column assembly is removed.
REMOVAL
1.
Remove the spiral cable with the combination switches attached from the steering column assembly.
Refer to
.
2.
Remove the lower instrument panel LH. Refer to
IP-14, "LOWER INSTRUMENT PANEL LH"
3.
Remove the steering column cover and ignition key finisher. Refer to
4.
Remove the lower knee protector. Refer to
IP-10, "INSTRUMENT PANEL ASSEMBLY"
1.
Driver air bag module
2.
Steering wheel center nut
3.
Steering wheel
4.
Combination switch and spiral cable
5.
Steering column assembly and igni-
tion switch
6.
Collar
7.
Hole cover seal
8.
Clamp
9.
Hole cover mounting plate
10. Hole cover
11. Upper joint
12. Upper shaft
13. Boot clamp
14. Lower joint shaft
15. Boot and clips (plastic)
WGIA0125E
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