Nissan Pathfinder (2008 year). Manual — part 639
NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTING
WT-33
< SYMPTOM DIAGNOSIS >
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SYMPTOM DIAGNOSIS
NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting Chart
INFOID:0000000001675571
Use chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×
: Applicable
Reference page
—
—
(R18
0A),
(M
20
5)
(R20
0),
(R
23
0)
(F
AX)
(FSU)
(R
A
X
)
(R
S
U
)
Refe
r to
TI
RES in
th
is cha
rt.
Refe
r to
ROAD WHEE
L i
n
t
h
is cha
rt.
Possible cause and SUSPECTED
PARTS
Out
-of-ro
un
d
Im
ba
la
nc
e
Incorrect t
ire
pressure
Un
ev
en
t
ire
we
ar
Def
o
rm
ati
o
n
or
da
ma
ge
No
n-u
n
if
orm
it
y
In
co
rrec
t t
ire
si
ze
FRONT F
INAL
DRI
V
E
REAR FINAL
DR
IVE
FRONT A
X
LE
AND FRONT SUSPE
NSION
REAR A
X
LE
AND REAR SUSPE
NSION
TI
RE
S
ROAD WHEE
L
BRAKE
STE
E
RING
Symptom
TIRES
Noise
×
×
×
×
×
×
×
×
×
×
×
×
×
Shake
×
×
×
×
×
×
×
×
×
×
×
Vibration
×
×
×
×
×
×
Shimmy
×
×
×
×
×
×
×
×
×
×
×
×
Shudder
×
×
×
×
×
×
×
×
×
×
×
Poor quality ride
or handling
×
×
×
×
×
×
×
×
×
ROAD
WHEEL
Noise
×
×
×
×
×
×
×
×
×
×
Shake
×
×
×
×
×
×
×
×
Shimmy, shud-
der
×
×
×
×
×
×
×
×
Poor quality ride
or handling
×
×
×
×
×
×
WT-34
< ON-VEHICLE MAINTENANCE >
WHEEL
ON-VEHICLE MAINTENANCE
WHEEL
Inspection
INFOID:0000000001675575
1.
Remove wheel and tire using power tool.
2.
Check tires for wear and improper inflation.
3.
Check wheels for deformation, cracks and other damage. If
deformed, remove wheel and check wheel runout.
a.
Remove tire from wheel and mount wheel on a tire balance
machine.
b.
Set dial indicator as shown in the illustration. Refer to
4.
Check front wheel bearings for looseness.
5.
Check front suspension for looseness.
6.
Install wheel and tire. Refer to
.
SFA975B
WHEEL AND TIRE ASSEMBLY
WT-35
< ON-VEHICLE REPAIR >
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ON-VEHICLE REPAIR
WHEEL AND TIRE ASSEMBLY
Balancing Wheels
INFOID:0000000001675576
WHEEL BALANCE REMOVAL
1.
Remove wheel and tire using power tool.
2.
Using releasing agent, remove double-faced adhesive tape from the wheel.
CAUTION:
• Be careful not to scratch the wheel during removal.
• After removing double-faced adhesive tape, wipe clean traces of releasing agent from the wheel.
WHEEL BALANCE INSTALLATION AND ADJUSTMENT
• If a tire balance machine has adhesion balance weight mode settings and drive-in weight mode setting,
select and adjust a drive-in weight mode suitable for wheels.
1.
Set wheel on wheel balancer using the center hole as a guide. Start the tire balance machine.
2.
When inner and outer imbalance values are shown on the wheel balancer indicator, multiply outer imbal-
ance value by 1.6 to determine balance weight that should be used. Select the outer balance weight with
a value closest to the calculated value and install it to the designated outer position of, or at the desig-
nated angle in relation to the road wheel.
CAUTION:
• Do not install the inner balance weight before installing the outer balance weight.
• Before installing the balance weight, be sure to clean the mating surface of the wheel.
Indicated imbalance value
×
5/3 = balance weight to be installed
Calculation example:
23 g (0.81 oz)
×
5/3 = 38.33 g (1.35 oz) = 40 g (1.41 oz) balance
weight (closer to calculated balance weight value)
Note that balance weight value must be closer to the calculated
balance weight value.
Example:
37.4 g = 35 g (1.23 oz)
37.5 g = 40 g (1.41 oz)
SMA054D
WT-36
< ON-VEHICLE REPAIR >
WHEEL AND TIRE ASSEMBLY
a.
Install balance weight in the position shown.
b.
When installing balance weight to wheels, set it into the grooved
area on the inner wall of the wheel as shown so that the balance
weight center is aligned with the wheel balancer indication posi-
tion (angle).
CAUTION:
• Always use Genuine NISSAN adhesion balance weights.
• Balance weights are not reusable; always replace with
new ones.
• Do not install more than three sheets of balance weights.
c.
If calculated balance weight value exceeds 50 g (1.76 oz), install
two balance weight sheets in line with each other as shown.
CAUTION:
Do not install one balance weight sheet on top of another.
3.
Start wheel balancer again.
4.
Install drive-in balance weight on inner side of road wheel in the
wheel balancer indication position (angle).
CAUTION:
Do not install more than two balance weights.
5.
Start wheel balancer. Make sure that inner and outer residual
imbalance values are 5 g (0.18 oz) each or below.
• If either residual imbalance value exceeds 5 g (0.18 oz),
repeat installation procedures.
Wheel Balance (Maximum Allowable Imbalance)
Rotation
INFOID:0000000001675577
NOTE:
Follow the maintenance schedule for tire rotation service intervals. Refer to
1.
Remove wheels and tires.
2.
Rotate wheels and tires on each side from front to back as
shown. Do not include the spare wheel and tire when rotating
the wheels and tires.
CAUTION:
When installing wheels and tires, tighten them diagonally
by dividing the work two to three times in order to prevent
the wheels from developing any distortion.
3.
Adjust the tire pressure to specification. Refer to
.
WDIA0060E
SMA056D
Maximum allowable imbalance
Dynamic (at rim flange)
5 g (0.18 oz) (one side)
Static
10 g (0.35 oz)
Wheel nut
: 133 N·m (14 kg-m, 98 ft-lb)
SMA829C
WHEEL AND TIRE ASSEMBLY
WT-37
< ON-VEHICLE REPAIR >
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4.
After the wheel and tire rotation, retighten the wheel nuts after the vehicle has been driven for 1,000 km
(600 miles), and also after any wheel and tire has been installed, such as after repairing a flat tire.
WT-38
< REMOVAL AND INSTALLATION >
REMOVAL AND INSTALLATION
REMOVAL AND INSTALLATION
REMOVAL AND INSTALLATION
Transmitter (Pressure Sensor)
INFOID:0000000001675572
REMOVAL
1.
Remove wheel and tire using power tool.
2.
Deflate tire. Unscrew transmitter retaining nut and allow transmitter to fall into tire.
3.
Gently bounce tire so that transmitter falls to bottom of tire.
Place wheel and tire assembly on tire changing machine and
break both tire beads. Ensure that the transmitter remains at the
bottom of the tire while breaking the bead.
4.
Turn tire so that valve hole is at bottom, and gently bounce the
tire to ensure transmitter is near valve hole. Carefully lift tire onto
turntable and position valve hole (and transmitter) 270 degrees
from mounting/dismounting head.
5.
Lubricate tire well, and remove top side of tire. Reach inside the
tire and remove the transmitter.
6.
Remove the second side of the tire as normal.
INSTALLATION
1.
Place first side of tire onto rim.
2.
Apply suitable silicone lubricant to new transmitter seal then install seal on transmitter. Refer to
.
NOTE:
Always replace the seal after every disassembly.
SEIA0047E
WEIA0046E
SEIA0049E
REMOVAL AND INSTALLATION
WT-39
< REMOVAL AND INSTALLATION >
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3.
Mount transmitter on rim and tighten nut.
NOTE:
Make sure no burrs exist in the valve stem hole of the wheel.
4.
Place wheel on turntable of tire machine. Ensure that transmitter
is 270 degrees from mounting/dismounting head.
NOTE:
Do not touch transmitter with mounting head.
5.
Lubricate tire well, and install second side of tire as normal.
Ensure that tire does not rotate relative to rim.
6.
Inflate tire and balance the wheel and tire assembly. Refer to
7.
Install wheel and tire assembly in appropriate wheel position on
vehicle. Refer to
.
NOTE:
If replacing the transmitter, then transmitter wake up operation
must be performed. Refer to
WT-5, "Transmitter Wake Up Operation"
8.
Adjust neutral position of steering angle sensor. Refer to
BRC-131, "ADJUSTMENT OF STEERING
ANGLE SENSOR NEUTRAL POSITION : Special Repair Requirement"
Transmitter nut
tightening torque
: 5.5 N·m (0.56 kg-m, 49 in-lb)
WEIA0137E
WEIA0046E
WT-40
< SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Road Wheel
INFOID:0000000001675573
Tire
INFOID:0000000001675574
Unit: kPa (kg/cm
2
, psi)
Wheel type
Aluminum
Maximum radial runout limit
Lateral mm (in)
0.3 (0.012) or less
Radial mm (in)
0.3 (0.012) or less
Maximum residual imbalance
Dynamic
(at rim flange)
Less than 5 g (0.18 oz) (per side)
Static (at rim flange)
Less than 10 g (0.35 oz)
Tire size
Air pressure
Conventional tire
Spare tire
Full size spare tire
—
240 (2.4, 35)
P245/75R16
240 (2.4, 35)
—
P265/75R16
240 (2.4, 35)
—
P265/65R17
240 (2.4, 35)
—
P265/60R18
240 (2.4, 35)
—
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