Infiniti M45 (Y34). Manual - part 712

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

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NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

PFP:00003

NVH Troubleshooting Chart

ADS0006I

Use chart below to help you find the cause of the symptom. If necessary, repair or replace these parts.

×

: Applicable

Reference page

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RAX-

12

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RAX-

6

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NVH 

in

 PR s

e

c

tio

n

.

NVH 

in

 RFD s

e

c

tio

n

.

NVH 

in

 F

AX a

n

d

 FS

U

 s

e

c

ti

o

n

s

.

Re

fe

r to

 R

E

AR 

AXL

E 

in

 t

h

is

 c

h

a

rt.

NVH in

 W

T

 s

e

c

ti

o

n

.

NVH in

 W

T

 s

e

c

ti

o

n

.

Re

fe

r to

 D

R

IVE SHAFT i

n

 th

is

 c

h

a

rt.

NVH 

in

 BR s

e

c

tio

n

.

NVH 

in

 PS s

e

c

tio

n

.

Possible cause and SUSPECTED PARTS

E

x

c

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s

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 jo

in

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J

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in

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 i

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ti

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, 

loos

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rts in

te

rf

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re

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ce

P

R

OPE

LLER SHAFT

DIFFERENTIAL

F

R

O

N

T

 AXL

E AND 

FRONT 

SUSPENSI

ON

REA

R

 AXL

E

TI

R

E

S

ROAD W

H

EEL

DRIVE SHAFT

BR

AK

E

S

S

T

EERI

N

G

Symptom

DRIVE 
SHAFT

Noise

×

×

×

×

×

×

×

×

×

×

Shake

×

×

×

×

×

×

×

×

×

REAR 
AXLE

Noise

×

×

×

×

×

×

×

×

×

×

Shake

×

×

×

×

×

×

×

×

×

Vibration

×

×

×

×

×

×

×

Shimmy

×

×

×

×

×

×

×

Judder

×

×

×

×

×

×

Poor quality ride or handling

×

×

×

×

×

RAX-6

WHEEL HUB

WHEEL HUB

PFP:43202

On-Vehicle Inspection and Service

ADS0006J

Check that the mounting conditions (looseness, back lash) of each component and component status (wear,
damage) are normal.

WHEEL BEARING INSPECTION

●

Move wheel hub in the axial direction by hand. Check that there is no looseness of wheel bearings.

●

Rotate wheel hub and check that there is no unusual noise or other irregular conditions. If there are any
irregular conditions, replace wheel bearings.

Removal and Installation

ADS0006K

REMOVAL

1.

Remove tire with power tool.

2.

Remove cotter pin. Then remove lock nut from drive shaft with power tool.

3.

Remove brake caliper with power tool. Hang it in a place where it will not interfere with work. Refer to 

BR-

29, "REAR DISC BRAKE"

 .

CAUTION:

●

Avoid depressing brake pedal while brake caliper is removed.

4.

Remove disc rotor and remove parking cable and parking brake shoe from back plate. Refer to 

PB-4,

"PARKING BRAKE CONTROL"

 , 

PB-5, "PARKING BRAKE SHOE"

 .

5.

Remove fixing bolts and nuts in axle side of radius rod, front lower link with power tool.

6.

Remove fixing bolt and nut in axle side of rear lower link. Then remove coil spring. Refer to 

RSU-14,

"REAR LOWER LINK & COIL SPRING"

 .

7.

Remove fixing bolt and nut in axle side of shock absorber with power tool.

8.

Using a puller (suitable tool), remove axle from drive shaft.

CAUTION:

●

When removing axle, do not apply an excessive angle to drive shaft joint. Also be careful not to
excessively extend slide joint.

Standard value

Axial end play

: 0.05 mm (0.002 in) or less

1.

Drive shaft

2.

Snap ring

3.

Wheel bearing

4.

Bushing

5.

Axle

6.

Back plate

7.

Wheel hub

8.

Lock nut

9.

Cotter pin

SDIA1025E

WHEEL HUB

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●

Do not allow drive shaft to hang down without support for counter shaft, wheel joints, and other
parts.

9.

Remove cotter pin and lock nut of suspension arm ball joint.

10. Use a ball joint remover (suitable tool) to remove suspension arm from axle. Be careful not to damage ball

joint boot.

CAUTION:

To prevent damage to threads and to prevent ball joint remover (suitable tool) from coming off,
and temporarily tighten mounting nut.

INSPECTION AFTER REMOVAL
Ball Joint Inspection

●

Check for boot breakage, axial looseness, and torque of suspension arm ball joint. Refer to 

RSU-10,

"SUSPENSION ARM"

 .

INSTALLATION

●

Refer to 

RAX-6, "Removal and Installation"

  for tightening torque. Tighten in the reverse order of removal.

CAUTION:

Refer to component parts location and do not reuse non-reusable parts.

Disassembly and Assembly

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DISASSEMBLY
Wheel Bearing

CAUTION:

Do not disassemble if wheel bearing has no trouble.
1.

Place axle in a vise. Remove wheel hub from axle with a sliding
hammer (special service tool) and an appropriate attachment
(special service tool).

CAUTION:

When securing axle in a vise, use copper plates or some-
thing similar.

2.

Using a drift (special service tool), puller (suitable tool) and a
bearing replacer (suitable tool), press wheel bearing outer side
inner race out to remove from wheel hub.

3.

Remove snap ring and back plate from axle.

SDIA1030E

Tool number

: ST33061000 (J 8107- 2)

SDIA0289E

RAX-8

WHEEL HUB

4.

Using a drift (special service tool), remove wheel bearing from
axle.

Bushing

●

Using a suitable drift, remove each bushing from axle.

INSPECTION AFTER DISASSEMBLY
Wheel Hub

●

Inspect wheel hub for deformation, cracks, and other damage. If any irregular conditions are found,
replace wheel hub.

Axle

●

Inspect axle for deformation, cracks, and other damage. If any irregular conditions are found, replace
axle.

Back Plate

●

Inspect back plate for deformation, cracks, and other damage. If any irregular conditions are found,
replace back plate.

ASSEMBLY
Bushing

●

Using a suitable drift, install each bushing onto axle.

SDIA1026E

SDIA0819E

SDIA0820E