Nissan Xterra. Manual - part 74

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

BR-5

< SYSTEM DESCRIPTION >

C

D

E

G

H

I

J

K

L

M

A

B

BR

N

O

P

SYSTEM DESCRIPTION

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

NVH Troubleshooting Chart

INFOID:0000000009484635

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

×: Applicable

Reference page

BR-6

, 

BR-8

BR-6

, 

BR-8

BR-6

, 

BR-8

BR-34

, 

BR-39

BR-34

, 

BR-39

BR-34

, 

BR-39

BR-34

, 

BR-39

BR-34

, 

BR-39

BR-34

, 

BR-39

BR-34

, 

BR-39

DL

N-12

9, 

"NVH T

rou

bl

es

ho

oti

ng

 Cha

rt"

DL

N-158

, "

N

V

H

 T

rou

bl

es

ho

oti

ng

 Cha

rt"

 (F

FD), 

DL

N-1

92

, "NV

H

 T

rou

ble

shoo

ting

 Cha

rt"

 (RFD,

 C200),

DL

N-22

4,

 "NVH T

rou

bl

es

ho

ot

in

g Cha

rt"

 (RFD, M

2

26 

with

ou

t EL

D)

DLN-2

47

, "NVH T

roub

le

sh

oo

tin

g Ch

art

"

 (RFD, 

M2

26

 with

 EL

D)

FA

X

-4, "

N

V

H

 T

rou

bl

es

ho

oti

ng

 Cha

rt"

 (F

AX), 

RA

X-6, 

"NVH T

ro

ubl

es

ho

ot

ing

 Cha

rt"

 (R

A

X

, C200),

RAX-18

, "NVH T

rou

bl

es

ho

ot

in

g Cha

rt

"

 (RAX, 

M226)

FSU-5

, "NVH T

rou

ble

sh

oo

tin

g Chart

"

 (FSU),

 

RSU-4,

 "NVH T

ro

ub

les

ho

ot

ing

 Ch

art"

 (RSU)

WT

-4

4,

 "NVH T

rou

bl

es

ho

ot

in

g Cha

rt"

ST

-5,

 "NVH T

ro

u

bl

es

ho

ot

in

g Ch

art

"

Possible cause and
SUSPECTED PARTS

Pad

s - 

da

ma

ge

d

Pad

s 

- un

ev

en

 wea

r

Shi

m

s da

ma

ge

d

Roto

r im

ba

la

nc

e

Roto

r da

ma

ge

Rotor runout

Roto

r de

fo

rma

tio

n

Roto

r de

fle

ctio

n

Rotor rust

Roto

r th

ic

kn

es

s 

va

riat

ion

PROP

ELLER SHAFT

DIFFERENTIAL

DR

IVE SHAF

T 

SUSPENSION

TIRES 

AND ROA

D

 WHEEL

STEERING

Symptom

Noise

×

×

×

×

×

×

×

×

×

Shake

×

×

×

×

×

×

Shimmy, Shudder

×

×

×

×

×

×

×

×

×

×

×

BR-6

< BASIC INSPECTION >

FRONT DISC BRAKE

BASIC INSPECTION

FRONT DISC BRAKE

BRAKE PAD
BRAKE PAD : Inspection

INFOID:0000000009484636

PAD WEAR

Check pad thickness from the inspection holes on cylinder body.

Check using a scale if necessary.

DISC ROTOR
DISC ROTOR : Inspection

INFOID:0000000009484637

VISUAL

Check surface of disc rotor for uneven wear, cracks, and serious damage. Replace as necessary.

RUNOUT

1. Attach disc rotor to wheel hub using wheel nuts at two or more

positions. 

2. Inspect runout using a dial gauge placed at 10 mm (0.39 in)

inside the disc edge.

NOTE:

Before measuring, make sure that wheel bearing axial end play

is within the specification. Refer to 

FAX-5, "On-Vehicle Inspec-

tion and Service"

.

3. When runout exceeds limit value, displace mounting positions of disc rotor by one hole. And then find a

position of the minimum value for runout.

4. If runout is outside the specified value after performing the above operation, refinish disc rotor using Tool.

THICKNESS

Standard thickness (new) : Refer to 

BR-52, "Front Disc 

Brake"

.

Minimum thickness

: Refer to 

BR-52, "Front Disc 

Brake"

.

WFIA0522E

Runout limit

: Refer to 

BR-52, "Front 

Disc Brake"

.

(with it attached to the vehicle)

Tool number

: 38-PFM92 ( — )

BRA0580D

FRONT DISC BRAKE

BR-7

< BASIC INSPECTION >

C

D

E

G

H

I

J

K

L

M

A

B

BR

N

O

P

Check thickness of the disc rotor using a micrometer. Replace disc

rotor if thickness is less then the minimum thickness.

Standard thickness (new)

: Refer to 

BR-52, "Front 

Disc Brake"

.

Minimum thickness

: Refer to 

BR-52, "Front 

Disc Brake"

.

Maximum uneven wear
(measured at 8 positions)

: Refer to 

BR-52, "Front 

Disc Brake"

.

SBR020B

BR-8

< BASIC INSPECTION >

REAR DISC BRAKE

REAR DISC BRAKE

BRAKE PAD
BRAKE PAD : Inspection

INFOID:0000000009484638

PAD WEAR

Check pad thickness from an inspection hole on cylinder body.

Check using a scale if necessary.

DISC ROTOR
DISC ROTOR : Inspection

INFOID:0000000009484639

VISUAL

Check surface of disc rotor for uneven wear, cracks, and serious damage. Replace as necessary.

RUNOUT

1. Attach disc rotor to wheel hub using wheel nuts at two or more

positions. 

2. Inspect runout using dial gauge placed at 10 mm (0.39 in) inside

disc edge as shown.

NOTE:

Before measuring, make sure that wheel bearing axial end play

is within the specification. Refer to 

RAX-15, "Axle Specification"

(C200), 

RAX-26, "Axle Bearing"

 (M226).

3. When runout exceeds limit value, displace mounting positions of disc rotor by one hole. And then find a

position of the minimum value for runout. 

4. If runout is outside the specified value after performing the above operation, refinish disc rotor using Tool.

THICKNESS

Check the thickness of the disc rotor using a micrometer. Replace

disc rotor if the thickness is less then the minimum thickness.

Standard thickness (new) : Refer to 

BR-52, "Rear Disc 

Brake"

.

Minimum thickness

: Refer to 

BR-52, "Rear Disc 

Brake"

.

BRA0010D

Runout limit 

: Refer to 

BR-52, "Rear Disc Brake"

.

(with it attached to the vehicle)

Tool number

: 38-PFM92 ( — )

AWFIA0492ZZ

Standard thickness (new)

: Refer to 

BR-52, "Rear 

Disc Brake"

.

Minimum thickness

: Refer to 

BR-52, "Rear 

Disc Brake"

.

Maximum uneven wear
(measured at 8 positions)

: Refer to 

BR-52, "Rear 

Disc Brake"

.

SFIA2284E