Nissan Murano Z51 (2008 year). Manual — part 370
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
ST-5
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×
: Applicable
Reference
—
NVH in DLN
section.
NVH in DLN
section.
NVH in F
AX,
RAX, FSU,
RSU section.
NVH in WT
section.
NVH in WT
section.
NVH in F
AX,
RAX
secti
on.
NVH in BR
section.
Possible cause and SUSPECTED PARTS
Fl
ui
d l
e
v
e
l
Ai
r in
hy
d
raul
ic
s
y
s
tem
Ou
ter/i
n
n
e
r
s
o
ck
et ba
ll joi
n
t swin
gi
ng
to
rqu
e
Ou
ter/i
n
n
e
r
so
cket ba
ll joi
n
t rot
a
tin
g
torq
ue
Ou
ter/i
n
n
e
r
s
o
ck
et ba
ll joi
n
t en
d
p
la
y
S
tee
rin
g
f
lui
d l
e
a
k
a
g
e
S
te
e
ri
ng
whe
e
l pl
ay
S
te
e
ri
ng
ge
ar ra
ck s
lid
in
g f
o
rc
e
Dri
ve b
el
t
lo
os
en
es
s
Im
p
rope
r s
tee
rin
g
wh
ee
l
Im
p
rope
r i
n
s
tal
lat
io
n
o
r lo
os
en
es
s
of
til
t lo
ck
l
e
v
e
r
M
ou
nti
ng
lo
os
en
es
s
S
tee
rin
g
c
o
lu
m
n
d
e
fo
rm
ati
o
n
or
da
ma
ge
Im
p
rope
r i
n
s
tal
lat
io
n
o
r lo
os
en
es
s
of
ste
e
ri
ng
c
o
lu
mn
S
tee
rin
g l
ink
a
ge
lo
os
en
es
s
PROPELLER SHAFT
DIF
F
ERENTIA
L
AX
LE and SUSPE
N
S
ION
TI
RE
ROAD WHE
E
L
DRIVE
SHAFT
BRAK
E
Symptom
Steering
Noise
× × × × × × × × ×
× ×
× × × × × × ×
Shake
×
×
×
× × × × ×
Vibration
×
× × ×
×
× ×
×
Shimmy
×
×
×
× × ×
×
Judder
×
×
× × ×
×
Revision: 2008 October
2009 Murano
ST-6
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000003464623
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SRS AIRBAG” and “SEAT BELT” of this
Service Manual.
WARNING:
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SRS AIRBAG”.
• Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Ser-
vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness
connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors while ignition switch is
ON or engine is running, never use air or electric power tools or strike near the sensor(s) with a hammer.
Heavy vibration may activate the sensor(s), deploy the airbag(s), possibly cause serious injury.
When using air or electric power tools or hammers, always turn OFF ignition switch, disconnect the battery,
and wait 3 minutes or more before performing any service.
Precaution Necessary for Steering Wheel Rotation after Battery Disconnect
INFOID:0000000003305892
NOTE:
• Before removing and installing any control units, first turn the push-button ignition switch to the LOCK posi-
tion, then disconnect both battery cables.
• After finishing work, confirm that all control unit connectors are connected properly, then re-connect both
battery cables.
• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If a DTC is detected, perform trouble diagnosis according to self-diagnosis results.
This vehicle is equipped with a push-button ignition switch and a steering lock unit.
If the battery is disconnected or discharged, the steering wheel will lock and cannot be turned.
If turning the steering wheel is required with the battery disconnected or discharged, follow the procedure
below before starting the repair operation.
OPERATION PROCEDURE
1.
Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
2.
Carry the Intelligent Key or insert it to the key slot and turn the push-button ignition switch to ACC position.
(At this time, the steering lock will be released.)
3.
Disconnect both battery cables. The steering lock will remain released with both battery cables discon-
nected and the steering wheel can be turned.
4.
Perform the necessary repair operation.
5.
When the repair work is completed, re-connect both battery cables. With the brake pedal released, turn
the push-button ignition switch from ACC position to ON position, then to LOCK position. (The steering
wheel will lock when the push-button ignition switch is turned to LOCK position.)
6.
Perform self-diagnosis check of all control units using CONSULT-III.
Revision: 2008 October
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PRECAUTIONS
ST-7
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Service Notice or Precautions for Steering System
INFOID:0000000003305893
• In case of removing steering gear assembly, make the final tightening with grounded and unloaded vehicle
condition, and then check wheel alignment.
• Observe the following precautions when disassembling.
- Before disassembly, thoroughly clean the outside of the unit.
- Disassembly should be done in a clean work area. It is important to prevent the internal parts from becoming
contaminated by dirt or other foreign matter.
- For easier and proper assembly, place disassembled parts in order on a parts rack.
- Use nylon cloth or paper towels to clean the parts; common shop rags can leave lint that might interfere with
their operation.
- Never reuse non-reusable parts.
- Before assembling, apply the specified grease to the directed parts.
Revision: 2008 October
2009 Murano
ST-8
< PREPARATION >
PREPARATION
PREPARATION
PREPARATION
Special Service Tools
INFOID:0000000003305894
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
ST27180001
(J-25726-A)
Steering wheel puller
Removing steering wheel
ST3127S000
(J-25765-A)
Preload gauge
Inspecting sliding torque, steering torque, and
rotating torque for ball joint
KV48104400
(
—
)
Teflon ring correcting tool
a: 50 mm (1.97 in) dia.
b: 36 mm (1.42 in) dia.
c: 100 mm (3.94 in)
Installing rack Teflon ring
KV48103400
(
—
)
Preload adapter
Inspecting rotating torque
ST35300000
(
—
)
Drift
a: 45.1 mm (1.776 in) dia.
b: 59.0 mm (2.323 in) dia.
Installing oil pump oil seal
ZZA0819D
ZZA0806D
S-NT550
ZZA0824D
ZZA0881D
Revision: 2008 October
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PREPARATION
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Commercial Service Tool
INFOID:0000000003305895
KV48103500
(J-26357)
Oil pressure gauge
Measuring oil pump relief pressure
KV48102500
(J-33914)
Oil pressure gauge adapter
Measuring oil pump relief pressure
Tool number
(Kent-Moore No.)
Tool name
Description
S-NT547
S-NT542
Tool number
Tool name
Description
Power tool
Loosening bolts and nuts
PBIC0190E
Revision: 2008 October
2009 Murano
ST-10
< ON-VEHICLE MAINTENANCE >
POWER STEERING FLUID
ON-VEHICLE MAINTENANCE
POWER STEERING FLUID
Inspection
INFOID:0000000003305896
FLUID LEVEL
1.
Check fluid level with engine stopped.
2.
Ensure that fluid level is between MIN and MAX.
3.
Fluid levels at HOT and COLD are different. Do not confuse
them.
CAUTION:
• The fluid level should not exceed the MAX line. Excessive fluid causes fluid leakage from the
cap.
• Never reuse drained power steering fluid.
FLUID LEAKAGE
Check hydraulic connections for fluid leakage, cracks, damage,
looseness, or wear.
1.
Run the engine until the fluid temperature reaches 50 to 80
°
C
(122 to 176
°
F) in reservoir tank, and keep engine speed idle.
2.
Turn steering wheel several times from full left stop to full right
stop.
3.
Hold steering wheel at each lock position for five seconds and
carefully check for fluid leakage.
CAUTION:
Never hold the steering wheel in a locked position for more
than 10 seconds. (There is the possibility that power steer-
ing oil pump assembly may be damaged.)
4.
If fluid leakage at connections is noticed, then loosen flare nut and then retighten. Do not overtighten con-
nector as this can damage O-ring, washer and connector.
5.
If fluid leakage from oil pump is noticed, check oil pump.
6.
Check steering gear boots for accumulation of fluid leaked from steering gear.
AIR BLEEDING HYDRAULIC SYSTEM
If air bleeding is not complete, the following symptoms can be observed.
• Bubbles are created in reservoir tank.
• Clicking noise can be heard from oil pump.
• Excessive buzzing in the oil pump.
NOTE:
Fluid noise may occur in the steering gear or oil pump. This does not affect performance or durability of the
system.
1.
Turn steering wheel several times from full left stop to full right stop with engine off.
CAUTION:
Fill reservoir tank with a sufficient amount of fluid so that fluid level is not below the MIN line while
turning steering wheel.
HOT (A)
: Fluid temperature 50 – 80
°
C (122 – 176
°
F)
COLD (B)
: Fluid temperature 0 – 30
°
C (32 – 86
°
F)
Recommended fluid
: Refer to
NORTH AMERICA : Fluids
and Lubricants"
.
Fluid capacity
: Refer to
.
ALGIA0002GB
SGIA0506E
Revision: 2008 October
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POWER STEERING FLUID
ST-11
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2.
Start the engine and hold steering wheel at each lock position for 3 second at idle to check for fluid leak-
age.
3.
Repeat step 2 above several times at approximately 3 second intervals.
CAUTION:
Never hold the steering wheel in a locked position for more than 10 seconds. (There is the possi-
bility that oil pump may be damaged.)
4.
Check fluid for bubbles and white contamination.
5.
Stop the engine if bubbles and white contamination do not drain out. Perform step 2 and 3 above after
waiting until bubbles and white contamination drain out.
6.
Stop the engine, and then check fluid level.
Revision: 2008 October
2009 Murano
ST-12
< ON-VEHICLE MAINTENANCE >
STEERING WHEEL
STEERING WHEEL
Inspection
INFOID:0000000003305897
STEERING WHEEL AXIAL END PLAY
1.
Check installation conditions of steering gear assembly, front suspension assembly, axle and steering col-
umn assembly.
2.
Check if movement exists when steering wheel is moved up and down, to the left and right and to the axial
direction.
3.
Check the following items when steering wheel axial end play is out of the standard.
• Check the steering column assembly mounting condition. Refer to
(Without electric motor),
ST-19, "WITH ELECTRIC MOTOR : Exploded View"
(with electric motor).
• Check steering gear assembly mounting condition for looseness. Refer to
.
STEERING WHEEL PLAY
1.
Turn steering wheel so that front wheels come to the straight-ahead position.
2.
Start the engine and lightly turn steering wheel to the left and right until front wheels start to move.
3.
Measure steering wheel movement on the outer circumference.
4.
Check the following items when steering wheel play is out of the standard.
• Check backlash for each joint of steering column assembly.
• Check installation condition of steering gear assembly.
NEUTRAL POSITION STEERING WHEEL
1.
Check that steering gear assembly, steering column assembly and steering wheel are installed in the cor-
rect position.
2.
Perform neutral position inspection after wheel alignment. Refer to
3.
Set the vehicle to the straight-ahead position and confirm steering wheel is in the neutral position.
4.
Loosen outer socket lock nut and turn inner socket to left and right equally to make fine adjustments if
steering wheel is not in the neutral position.
STEERING WHEEL TURNING FORCE
1.
Park the vehicle on a level and dry surface, set parking brake.
2.
Tires need to be inflated normal pressure. Refer to
.
3.
Start the engine.
4.
Bring power steering fluid up to adequate operating temperature.
Standard
Steering wheel axial end
play
: Refer to
Wheel Axial End Play and
Play"
.
Standard
Steering wheel play
: Refer to
Wheel Axial End Play and
Play"
.
Fluid temperature
: 50 – 80
°
C (122 – 176
°
F)
Revision: 2008 October
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STEERING WHEEL
ST-13
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5.
Check steering wheel turning force when steering wheel has
been turned 540
°
from neutral position.
NOTE:
Multiply the distance (L) from the hook of spring balance to the
center of steering wheel by the measurement value with a spring
balance.
6.
If steering wheel turning force is out of the specification, check
rack sliding force and relief hydraulic pressure of oil pump. Regarding relief hydraulic pressure of oil
pump, refer to
.
RACK SLIDING FORCE
1.
Disconnect lower joint and steering knuckle from steering gear assembly. Refer to
.
2.
Start and run the engine at idle to make sure steering fluid has reached normal operating temperature.
3.
While pulling outer socket slowly in
±
11.5 mm (
±
0.453 in) range
from neutral position, make sure rack sliding force is within
specification.
4.
If rack sliding force is not within specification, overhaul steering
gear assembly.
FRONT WHEEL TURNING ANGLE
1.
Check front wheel turning angle after toe-in inspection. Refer to
2.
Place front wheels on turning radius gauges and rear wheels on
stands, so that vehicle can be level.
3.
Check the maximum inner and outer wheel turning angles for LH
and RH road wheels.
4.
With the engine at idle, turn steering wheel from full left stop to
full right stop and measure the turning angles.
Standard
Steering wheel turning
force
: Refer to
JSGIA0027ZZ
Fluid temperature
: 50 – 80
°
C (122 – 176
°
F)
Standard
Rack sliding force
: Refer to
.
SST090B
FAA0016D
Standard
Inner wheel (Angle: A)
: Refer to
.
Outer wheel (Angle: B)
: Refer to
.
SGIA0055E
Revision: 2008 October
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ST-14
< ON-VEHICLE MAINTENANCE >
STEERING WHEEL
5.
Check the following items when turning angle is out of the stan-
dard.
a.
Check the neutral position of the rack stroke (L).
b.
Disassemble steering gear assembly to check the cause that
rack stroke is outside of the standard.
• Steering angles are not adjustable. Check steering gear
assembly, steering column assembly and front suspension
components for wear or damage if any of the turning angles are different from the specified value.
Replace any of them, if any non-standard condition exists.
Standard
L
: Refer to
.
SGIA0629J
Revision: 2008 October
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STEERING WHEEL
ST-15
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ON-VEHICLE REPAIR
STEERING WHEEL
Exploded View
INFOID:0000000003305898
Removal and Installation
INFOID:0000000003305899
REMOVAL
NOTE:
When reconnecting spiral cable, fix cable with a tape so that fixing case and rotating part keep aligned. This
will omit neutral position alignment procedure during spiral cable installation.
1.
Set the vehicle to the straight-ahead position.
2.
Remove driver air bag module. Refer to
.
3.
Remove steering wheel lock nut after steering is locked.
4.
Remove steering wheel with the steering wheel puller (A) [SST:
ST27180001 (J-25726-A)].
INSTALLATION
Note the following, and install in the reverse order of removal.
CAUTION:
Never twist spiral cable freely on excessively after it becomes tight (doing so may cause the cable to
tear off).
NOTE:
Check the spiral cable neutral position after replacing or rotating spiral cable. Refer to
.
1.
Steering wheel
Refer to
JSGIA0303GB
JSGIA0304ZZ
Revision: 2008 October
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< ON-VEHICLE REPAIR >
STEERING COLUMN
STEERING COLUMN
WITHOUT ELECTRIC MOTOR
WITHOUT ELECTRIC MOTOR : Exploded View
INFOID:0000000003305900
WITHOUT ELECTRIC MOTOR : Removal and Installation
INFOID:0000000003305901
REMOVAL
1.
Set the vehicle to the straight-ahead position.
2.
Place the tilt to the highest level. Place the telescopic to the longest level.
3.
Remove driver air bag module. Refer to
.
4.
Remove steering wheel. Refer to
.
5.
Remove instrument driver lower panel. Refer to
6.
Remove steering column cover. Refer to
.
7.
Remove spiral cable. Refer to
.
8.
Remove cluster lid A. Refer to
.
1.
Steering column assembly
2.
Bracket
3.
Bracket
4.
Slide plate
5.
Slide bracket
6.
Lower mount bracket
7.
Bracket
8.
Upper joint
9.
Spring
10. Tilt lever
11.
Clip
Refer to
for symbols in the figure.
JSGIA0610GB
Revision: 2008 October
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STEERING COLUMN
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9.
Remove knee protector (1).
10. Disconnect each switch harness connectors installed to steering
column assembly.
11. Remove the joint mounting bolt and nut (lower shaft side), and
separate the joint from lower shaft.
12. Remove steering column assembly.
CAUTION:
• Never give axial impact to steering column assembly dur-
ing removal.
• Never move steering gear assembly when removing steering column assembly.
INSTALLATION
Note the following, and install in the reverse order of removal.
• Install the slide plate (1) and steering column housing (2) so that
the mounting dimensions (L) is within the specified range as
described below.
• Tighten the mounting bolts in the order shown in the figure when
installing the steering column assembly.
• Be careful of the following points when installing the steering col-
umn assembly.
CAUTION:
• Never give axial impact to steering column assembly during
installation.
• Never move steering gear assembly.
• Never reuse the joint mounting nut (lower shaft side).
• Adjust neutral position of steering angle sensor. Refer to
"ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL
POSITION : Special Repair Requirement"
WITHOUT ELECTRIC MOTOR : Inspection
INFOID:0000000003305902
INSPECTION AFTER REMOVAL
• Check each part of steering column assembly for damage or other malfunctions. Replace if necessary.
• Measure steering column assembly rotating torque using a preload gauge [SST: ST3127S000 (J-25765-A)].
Replace steering column assembly if outside the standard.
: Bolt
JSGIA0306ZZ
Standard
L
: 2.0 mm (0.079 in) or less
JSGIA0315ZZ
JSGIA0310ZZ
Standard
Rotating torque
: Refer to
Revision: 2008 October
2009 Murano
ST-18
< ON-VEHICLE REPAIR >
STEERING COLUMN
• Measure the length (L) as shown, if vehicle has been involved in a
minor collision. Replace steering column assembly if out side the
standard.
• Install the bracket (1) and steering column housing (2) so that the
clearance (A) is within the specified range as described below.
Replace steering column assembly if out side the standard.
INSPECTION AFTER INSTALLATION
• Check each part of steering column assembly for damage or other malfunctions. Replace if necessary.
• Check the steering wheel play, neutral position steering wheel, steering wheel turning force, and front wheel
turning angle. Refer to
.
• Check tilt and telescopic mechanism operating range tilt operating
range (L), telescopic operating range (T) as shown in the figure.
WITH ELECTRIC MOTOR
Standard
L
: Refer to
.
JSGIA0562ZZ
Standard
A
: Refer to
JSGIA0389ZZ
Standard
T
: Refer to
L
: Refer to
JSGIA0307ZZ
Revision: 2008 October
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STEERING COLUMN
ST-19
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WITH ELECTRIC MOTOR : Exploded View
INFOID:0000000003305903
WITH ELECTRIC MOTOR : Removal and Installation
INFOID:0000000003349525
REMOVAL
1.
Set the vehicle to the straight-ahead position.
2.
Place the tilt to the highest level. Place the telescopic to the longest level.
3.
Remove driver air bag module. Refer to
.
4.
Remove steering wheel. Refer to
.
5.
Remove instrument driver lower panel. Refer to
6.
Remove steering column cover. Refer to
.
7.
Remove spiral cable. Refer to
.
8.
Remove cluster lid A. Refer to
1.
Bracket
2.
Steering column assembly
3.
Bracket
4.
Clip
5.
Tilt motor
6.
Bracket
7.
Bracket
8.
Bracket
9.
Slide bracket
10. Lower mount bracket
11.
Upper joint
12. Bracket
13. Telescopic motor
14. Bracket
15. Bracket
Refer to
JSGIA0529GB
Revision: 2008 October
2009 Murano
ST-20
< ON-VEHICLE REPAIR >
STEERING COLUMN
9.
Remove knee protector (1).
10. Disconnect each switch harness connectors installed to steering
column assembly.
11. Remove the joint mounting bolt and nut (lower shaft side), and
separate the joint from lower shaft.
12. Remove steering column assembly.
CAUTION:
• Never give axial impact to steering column assembly dur-
ing removal.
• Never move steering gear assembly when removing steering column assembly.
INSTALLATION
Note the following, and install in the reverse order of removal.
• Install the slide plate (1) and steering column housing (2) so that
the mounting dimensions (L) is within the specified range as
described below.
• Tighten the mounting bolts in the order shown in the figure when
installing the steering column assembly.
• Be careful of the following points when installing the steering col-
umn assembly.
CAUTION:
• Never give axial impact to steering column assembly during
installation.
• Never move steering gear assembly.
• Never reuse the joint mounting nut (lower shaft side).
• Adjust neutral position of steering angle sensor. Refer to
"ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL
POSITION : Special Repair Requirement"
.
WITH ELECTRIC MOTOR : Inspection
INFOID:0000000003305905
INSPECTION AFTER REMOVAL
• Check each part of steering column assembly for damage or other malfunctions. Replace if necessary.
• Measure steering column assembly rotating torque using a preload gauge [SST: ST3127S000 (J-25765-A)].
Replace steering column assembly if outside the standard.
: Bolt
JSGIA0306ZZ
Standard
L
: 2.0 mm (0.079 in) or less
JSGIA0315ZZ
JSGIA0310ZZ
Standard
Rotating torque
: Refer to
Revision: 2008 October
2009 Murano
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