Infiniti FX35, FX50 (S51). Manual — part 1576
RSU-2
< SYMPTOM DIAGNOSIS >
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
SYMPTOM DIAGNOSIS
NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting Chart
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Use chart below to find the cause of the symptom. If necessary, repair or replace these parts.
×
: Applicable
Reference page
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—
—
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,
,
NVH in DLN section.
NVH in DLN section.
NVH in RAX
and RS
U
sections.
NVH in WT section.
NVH in WT section.
NVH in RAX
section.
NVH in B
R
section.
NVH in S
T
section.
Possible cause and SUSPECTED PARTS
Im
pro
pe
r in
st
a
llat
ion
,
lo
os
en
es
s
Sh
oc
k
ab
so
rbe
r d
e
fo
rma
tio
n,
da
ma
ge
or
de
fle
c
tion
Bu
s
h
in
g
or m
o
u
n
ting
d
e
te
rio
rati
o
n
Part
s interference
S
p
ri
ng fat
igu
e
Su
s
pen
s
ion
lo
os
en
es
s
In
c
o
rre
ct whee
l ali
g
n
m
e
n
t
S
tab
ilize
r b
a
r f
a
ti
gu
e
PROPELLE
R
SHAFT
DIF
F
ERENTI
AL
REA
R
AXLE
AND REAR S
U
S
PENSION
TI
RE
ROAD WH
E
E
L
DRIV
E SHAFT
BRA
K
E
ST
EERING
Symptom
REAR SUSPENSION
Noise
×
×
×
×
×
×
×
×
×
×
×
×
×
×
Shake
×
×
×
×
×
×
×
×
×
×
×
×
Vibration
×
×
×
×
×
×
×
×
×
×
Shimmy
×
×
×
×
×
×
×
×
×
×
Judder
×
×
×
×
×
×
×
×
Poor quality ride or
handling
×
×
×
×
×
×
×
×
×
×
PRECAUTIONS
RSU-3
< PRECAUTION >
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PRECAUTION
PRECAUTIONS
Precautions for Suspension
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CAUTION:
• When installing rubber bushings, the final tightening must be carried out under unladen conditions
with tires on ground. Spilled 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.
RSU-4
< PREPARATION >
PREPARATION
PREPARATION
PREPARATION
Special Service Tool
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The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Commercial Service Tool
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Tool number
(Kent-Moore No.)
Tool name
Description
ST3127S000
(J-25765-A)
Preload gauge
Measuring rotating torque of ball joint
ZZA0806D
Tool name
Description
Power tool
Loosening bolts and nuts
PBIC0190E
REAR SUSPENSION ASSEMBLY
RSU-5
< PERIODIC MAINTENANCE >
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PERIODIC MAINTENANCE
REAR SUSPENSION ASSEMBLY
Inspection
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MOUNTING INSPECTION
Make sure the mounting conditions (looseness, backlash) of each component and component conditions
(wear, damage) are normal.
BALL JOINT AXIAL END PLAY
Measure axial end play by placing and moving up/down with an iron bar or equivalent between suspension
arm and axle assembly.
CAUTION:
• Never depress brake pedal when measuring.
• Never perform with tires on level ground.
• Be careful not to damage ball joint boot.
SHOCK ABSORBER
Check for oil leakage and damage. Replace it if necessary.
Axial end play
: Refer to
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