Infiniti QX56 (JA60). Manual - part 780

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

RAX-5

< SYMPTOM DIAGNOSIS >

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SYMPTOM DIAGNOSIS

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

NVH Troubleshooting Chart

INFOID:0000000005148953

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

×: Applicable

Reference page

—

RAX-10

RAX-7

—

RAX-8

—

DLN

-24

2,

 "

NV

H T

rou

ble

shoo

ting Cha

rt

"

F

AX-5, "

NVH T

rou

bl

es

ho

ot

in

g Cha

rt

"

 

FS

U-5, "

NV

H T

rou

bl

es

ho

oti

ng

 Cha

rt

"

RSU-5, "

NVH T

ro

ubl

es

ho

ot

ing

 Cha

rt

"

WT

-43,

 "

NVH T

ro

ub

les

ho

ot

ing

 Ch

art

"

WT

-43,

 "

NVH T

ro

ub

les

ho

ot

ing

 Ch

art

"

DLN

-19

4,

 "

NV

H T

rou

ble

shoo

ting Cha

rt

"

BR-6, "

NVH T

ro

ub

les

ho

ot

ing

 Ch

art

"

ST

-12, "

NVH T

ro

u

bl

es

ho

ot

in

g Ch

art

"

Possible cause and SUSPECTED PARTS

Ex

ce

ss

iv

e joi

nt

 an

gl

e

Jo

in

t sl

id

in

g 

re

si

st

an

ce

Im

ba

la

nc

e

Imp

rop

er i

ns

ta

lla

tio

n,

 lo

os

en

es

s

Part

s interf

erence

DIFF

ERENTIAL

FRONT A

XLE

FRONT S

U

SPENSION

REAR S

U

S

PENSION

TI

RE

S

ROAD WHEE

L

PROPELLER SHAFT

BRAKE

S

STE

E

RING

Symptom

Noise

×

×

×

×

×

×

×

×

×

×

×

×

Shake

×

×

×

×

×

×

×

×

×

×

×

Vibration

×

×

×

×

×

×

×

×

×

Shimmy

×

×

×

×

×

×

×

×

Shudder

×

×

×

×

×

×

×

Poor quality ride or handling

×

×

×

×

×

×

×

×

RAX-6

< ON-VEHICLE MAINTENANCE >

WHEEL HUB

ON-VEHICLE MAINTENANCE

WHEEL HUB

On-Vehicle Inspection and Service

INFOID:0000000005148954

Inspect the components for any looseness or back lash. Inspect each component for any excessive wear or

damage. Replace any components as necessary.

WHEEL BEARING INSPECTION

• Move the wheel hub and bearing assembly in the axial direction by hand to check the axial end play. Check

that the axial end play is with specification. Replace the wheel hub and bearing assembly as necessary.

• Rotate the wheel hub and bearing assembly to check that there are no unusual noises or other abnormal

conditions. Replace the wheel hub and bearing assembly as necessary.

Axial end play

: 0 mm (0 in)

REAR DRIVE SHAFT

RAX-7

< ON-VEHICLE REPAIR >

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ON-VEHICLE REPAIR

REAR DRIVE SHAFT

Component

INFOID:0000000005148955

Rear Drive Shaft

WDIA0263E

1.

Rear final drive assembly

2.

Rear drive shaft

3.

Rear brake and hub assembly

4.

Cotter pin

RAX-8

< REMOVAL AND INSTALLATION >

WHEEL HUB

REMOVAL AND INSTALLATION

WHEEL HUB

Removal and Installation

INFOID:0000000005148956

Rear Wheel Hub and Bearing Assembly

NOTE:

The rear ABS sensor is routed through the back of the rear backing plate and into the side of the wheel hub

and bearing assembly. It is necessary to remove the wheel hub and bearing assembly to remove the rear ABS

sensor.

REMOVAL

1. Remove the wheel and tire using power tool.
2. Remove the rear brake caliper, without disconnecting the hydraulic hose, using power tool. Reposition the

rear brake caliper aside using suitable wire. Refer to 

BR-36, "Removal and Installation of Brake Caliper

and Disc Rotor"

.

NOTE:

• Do not depress the brake pedal while the brake caliper is removed. 

3. Remove the rear disc rotor.
4. Remove the cotter pin, then remove the nut from the drive shaft

using power tool.

• Discard the cotter pin, use a new one for installation.

5. Remove the drive shaft. Refer to 

RAX-10, "Removal and Instal-

lation"

.

6. Remove the four wheel hub and bearing assembly bolts using power tool.

• Discard the four wheel hub and bearing assembly bolts, use new ones for installation.

WDIA0189E

1.

Back plate

2.

Rear ABS sensor

3.

Wheel hub and bearing assembly

4.

Wheel stud

5.

Rear disc rotor

6.

Cotter pin

LDIA0050E