FFD-6
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
Revision: 2007 April2007 M35/M45
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartNDS000EO
Use the chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: ApplicableReference page
Refer to FFD-24, "
INSPECTION AFTER DISASSEMBLY
" .
Refer to FFD-17, "
Tooth Contact
" .
Refer to FFD-24, "
INSPECTION AFTER DISASSEMBLY
" .
Refer to FFD-19, "
Backlash
" .
Refer to FFD-19, "
Companion Flange Runout
" .
Refer to FFD-8, "
Checking Differential Gear Oil
" .
NVH in PR section.
NVH in FAX, RAX, FSU and RSU sections.
NVH in WT section.
NVH in WT section.
NVH in FAX and RAX section.
NVH in BR section.
NVH in PS section.
Possible cause and SUSPECTED PARTS
Gear tooth rough
Gear contact improper
Tooth surfaces worn
Backlash incorrect
Companion flange excessive runout
Gear oil improper
PROPELLER SHAFT
AXLE AND SUSPENSION
TIRES
ROAD WHEEL
DRIVE SHAFT
BRAKES
STEERING
Symptom Noise×××××××××××××
FL-12
FUEL TANK
Revision: 2007 April2007 M35/M45
2. Start engine and rev it up and make sure there are no fuel leaks at the fuel system tube and hose connec-
tions.
After removing/installing rear suspension assembly, make sure to adjust wheel alignment and then, adjust
neutral position of steering angle sensor. Refer to RSU-5, "
Wheel Alignment Inspection" and BRC-6,
"Adjustment of Steering Angle Sensor Neutral Position" .
FSU-1
FRONT SUSPENSION
E SUSPENSION
CONTENTS
C
D
F
G
H
I
J
K
L
M
SECTION FSU
A
B
FSU
Revision: 2007 April2007 M35/M45
FRONT SUSPENSION
2WD
PRECAUTIONS .......................................................... 3
Caution ..................................................................... 3
PREPARATION ........................................................... 4
Special Service Tools [SST] ..................................... 4
Commercial Service Tools ........................................ 4
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING ................................................ 5
NVH Troubleshooting Chart ..................................... 5
FRONT SUSPENSION ASSEMBLY ........................... 6
On-Vehicle Inspection .............................................. 6
INSPECTION OF UPPER LINK BALL JOINT
END PLAY ............................................................. 6
SHOCK ABSORBER INSPECTION ..................... 6
Wheel Alignment Inspection ..................................... 6
DESCRIPTION ...................................................... 6
PRELIMINARY CHECK ........................................ 6
GENERAL INFORMATION AND RECOMMEN-
DATIONS .............................................................. 6
THE ALIGNMENT PROCESS .............................. 7
INSPECTION OF CAMBER, CASTER AND
KINGPIN INCLINATION ANGLES ........................ 7
Components ............................................................. 8
Removal and Installation .......................................... 9
REMOVAL ............................................................. 9
INSTALLATION ................................................... 10
COIL SPRING AND SHOCK ABSORBER ................11
Removal and Installation ......................................... 11
REMOVAL ............................................................ 11
INSTALLATION .................................................... 11
Disassembly and Assembly .................................... 11
DISASSEMBLY .................................................... 11
INSPECTION AFTER DISASSEMBLY ............... 12
ASSEMBLY ......................................................... 12
TRANSVERSE LINK ................................................ 14
Removal and Installation ........................................ 14
REMOVAL ........................................................... 14
INSPECTION AFTER REMOVAL ....................... 14
INSTALLATION ................................................... 15UPPER LINK ............................................................. 16
Removal and Installation ........................................ 16
REMOVAL ........................................................... 16
INSPECTION AFTER REMOVAL ....................... 16
INSTALLATION ................................................... 16
STABILIZER BAR ..................................................... 18
Removal and Installation ........................................ 18
REMOVAL ........................................................... 18
INSPECTION AFTER REMOVAL ....................... 18
INSTALLATION ................................................... 18
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 19
Wheel Alignment (Unladen *) ................................. 19
Ball Joint ................................................................. 19
Wheelarch Height (Unladen*) ................................. 20
AWD
PRECAUTIONS ........................................................ 21
Caution ................................................................... 21
PREPARATION ......................................................... 22
Special Service Tools [SST] ................................... 22
Commercial Service Tools ...................................... 22
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING .............................................. 23
NVH Troubleshooting Chart ................................... 23
FRONT SUSPENSION ASSEMBLY ......................... 24
On-Vehicle Inspection ............................................. 24
INSPECTION OF UPPER LINK BALL JOINT
END PLAY ........................................................... 24
SHOCK ABSORBER INSPECTION .................... 24
Wheel Alignment Inspection ................................... 24
DESCRIPTION .................................................... 24
PRELIMINARY CHECK ....................................... 24
GENERAL INFORMATION AND RECOMMEN-
DATIONS ............................................................. 24
THE ALIGNMENT PROCESS ............................. 25
INSPECTION OF CAMBER, CASTER AND
KINGPIN INCLINATION ANGLES ....................... 25
FSU-2Revision: 2007 April2007 M35/M45 Components ........................................................... 26
Removal and Installation ........................................ 27
REMOVAL ........................................................... 27
INSTALLATION .................................................... 28
COIL SPRING AND SHOCK ABSORBER ............... 29
Removal and Installation ........................................ 29
REMOVAL ........................................................... 29
INSTALLATION .................................................... 29
Disassembly and Assembly .................................... 29
DISASSEMBLY ................................................... 29
INSPECTION AFTER DISASSEMBLY ................ 30
ASSEMBLY ......................................................... 30
TRANSVERSE LINK ................................................. 32
Removal and Installation ........................................ 32
REMOVAL ........................................................... 32
INSPECTION AFTER REMOVAL ........................ 32
INSTALLATION .................................................... 33UPPER LINK ............................................................. 34
Removal and Installation ......................................... 34
REMOVAL ............................................................ 34
INSPECTION AFTER REMOVAL ........................ 34
INSTALLATION .................................................... 34
STABILIZER BAR ..................................................... 36
Removal and Installation ......................................... 36
REMOVAL ............................................................ 36
INSPECTION AFTER REMOVAL ........................ 36
INSTALLATION .................................................... 36
SERVICE DATA AND SPECIFICATIONS (SDS) ...... 37
Wheel Alignment (Unladen*) ................................... 37
Ball Joint ................................................................. 37
Wheelarch Height (Unladen*) ................................. 37
PRECAUTIONS
FSU-3
[2WD]
C
D
F
G
H
I
J
K
L
MA
B
FSU
Revision: 2007 April2007 M35/M45
[2WD]PRECAUTIONSPFP:00001
CautionNES000I6
When installing rubber bushings, the final tightening must be carried out under unladen conditions with
tires on ground. Oil might shorten the life of rubber bushings. Be sure to wipe off any spilled oil.
–Unladen conditions mean that fuel, engine coolant and lubricant are full. Spare tire, jack, hand tools and
mats are in designated positions.
After servicing suspension parts, be sure to check wheel alignment.
Self-lock nuts are not reusable. Always use new ones when installing. Since new self-lock nuts are pre-
oiled, tighten as they are.
FSU-4
[2WD]
PREPARATION
Revision: 2007 April2007 M35/M45
PREPARATIONPFP:00002
Special Service Tools [SST]NES000I7
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service ToolsNES000I8
Tool number
(Kent-Moore No.)
Tool nameDescription
KV991040S0
(—)
CCK gauge attachment
1. Plate
2. Guide bolt
3. Nut
4. Spring
5. Center plate
6. KV99104020 Adapter A
a: 72 mm (2.83 in) dia.
7. KV99104030 Adapter B
b: 65 mm (2.56 in) dia.
8. KV99104040 Adapter C
c: 57 mm (2.24 in) dia.
9. KV99104050 Adapter D
d: 53.4 mm (2.102 in) dia.Measuring wheel alignment
ST35652000
(—)
Strut attachmentDisassembling and assembling shock
absorber
ST3127S000
(See J-25765-A)
Preload Gauge
1. GG91030000
(J-25765-A)
Torque wrench
2. HT62940000
(—)
Socket adapter
3. HT62900000
(—)
Socket adapterMeasuring rotating torque of ball joint
S-NT498
ZZA0807D
NT124
Tool nameDescription
Power tool
Removing wheel nuts
Removing torque member fixing bolts
Removing undercover
Removing front suspension compo-
nents parts
Removing hub lock nut
Spring compressor Removing and installing coil springPBIC0190E
S-NT717
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
FSU-5
[2WD]
C
D
F
G
H
I
J
K
L
MA
B
FSU
Revision: 2007 April2007 M35/M45
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTINGPFP:00003
NVH Troubleshooting ChartNES000I9
Use chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.
×: ApplicableReference page
FSU-8FSU-12
—
—
—
FSU-8FSU-6FSU-18
NVH in PR section
NVH in FAX and FSU section
NVH in WT section
NVH in BR section
NVH in PS section
Possible cause and SUSPECTED PARTS
Improper installation, looseness
Strut deformation, damage or deflection
Bushing or mounting deterioration
Parts interference
Spring fatigue
Suspension looseness
Incorrect wheel alignment
Stabilizer bar fatigue
PROPELLER SHAFT
FRONT AXLE AND FRONT SUSPENSION
ROAD WHEEL
BRAKES
STEERING
Symptom FRONT SUSPENSIONNoise×××××× ×××××
Shake×××× × ×××××
Vibration××××× ×× ×
Shimmy×××× × ××××
Judder××× ××××
Poor quality ride or han-
dling××××× ×× ××
FSU-6
[2WD]
FRONT SUSPENSION ASSEMBLY
Revision: 2007 April2007 M35/M45
FRONT SUSPENSION ASSEMBLYPFP:54010
On-Vehicle Inspection NES000IA
Make sure the mounting conditions (looseness, back lash) of each component and component conditions
(wear, damage) are normal.
INSPECTION OF UPPER LINK BALL JOINT END PLAY
1. Set front wheels in a straight-ahead position. Do not depress brake pedal.
2. Place an iron bar or similar tool between transverse link and steering knuckle.
3. Measure axial end play by prying it up and down.
CAUTION:
Be careful not to damage ball joint boot. Do not damage the installation position by applying
excessive force.
SHOCK ABSORBER INSPECTION
Check for oil leakage, damage and breakage of installation positions.
Wheel Alignment InspectionNES000IB
DESCRIPTION
Measure wheel alignment under unladen conditions.
NOTE:
“Unladen conditions” means that fuel, engine coolant, and lubricant are full. Spare tire, jack, hand tools and
mats are in designated positions.
PRELIMINARY CHECK
Check tires for improper air pressure and wear.
Check road wheels for runout. Refer to WT-6, "ROAD WHEEL" .
Check wheel bearing axial end play. Refer to FAX-5, "WHEEL BEARING INSPECTION" .
Check transverse link ball joint axial end play. Refer to FSU-14, "INSPECTION AFTER REMOVAL" .
Check shock absorber operation.
Check each mounting part of axle and suspension for looseness and deformation.
Check each of suspension member, shock absorber, upper link and transverse link for cracks, deforma-
tion and other damage.
Check vehicle height (posture).
GENERAL INFORMATION AND RECOMMENDATIONS
A four-wheel thrust alignment should be performed.
–This type of alignment is recommended for any NISSAN/INFINITI vehicle.
–The four-wheel “thrust” process helps ensure that the vehicle is properly aligned and the steering wheel is
centered.
–The alignment rack itself should be capable of accepting any NISSAN/INFINITI vehicle.
–The rack should be checked to ensure that it is level.
Make sure the machine is properly calibrated.
–Your alignment equipment should be regularly calibrated in order to give correct information.
–Check with the manufacturer of your specific equipment for their recommended Service/Calibration
Schedule.Axial end play : 0 mm (0 in)