Nissan Titan. Manual - part 567

ST-4

< PREPARATION >

PREPARATION

Commercial Service Tool

INFOID:0000000009883500

Tool name

Description

Power tool

Loosening nuts, screws and bolts

PIIB1407E

NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTING

ST-5

< SYMPTOM DIAGNOSIS >

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SYMPTOM DIAGNOSIS

NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTING

NVH Troubleshooting Chart

INFOID:0000000009883501

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

×: Applicable

Reference page

ST

-6

ST

-6

ST

-31

ST

-31

ST

-31

ST

-6

ST

-8

ST

-8

EM

-14

, "Ch

ec

ki

ng 

Driv

e Be

lts

"

ST

-8

ST

-27

ST

-15

ST

-17

ST

-17

ST

-15

DLN-128

 (2F1

31

0),

 

DLN

-137

 (2S1

41

0),

 

DLN

-146

, (3S1

41

0)

DL

N-1

61

, "NV

H

 T

rou

ble

shoo

ting Cha

rt"

F

AX-4,

 "NVH T

rou

bl

es

ho

ot

in

g Cha

rt"

FSU-4,

 "NVH T

ro

ub

les

h

oot

in

g Ch

art"

WT

-4

4,

 "NVH T

ro

ub

les

ho

ot

ing

 Ch

art"

WT

-4

4,

 "NVH T

ro

ub

les

ho

ot

ing

 Ch

art"

F

AX-4,

 "NVH T

rou

bl

es

ho

ot

in

g Cha

rt"

BR-5, 

"NVH T

ro

ub

les

ho

ot

ing

 Ch

art"

Possible cause and sus-
pected parts

F

lui

d l

ev

el

Ai

r i

n

 hy

dra

u

lic sy

st

em

S

tee

rin

g o

ut

er s

oc

ke

t 

ba

ll j

oi

nt 

swin

gi

ng

 fo

rce

S

tee

rin

g o

ut

er socket 

ba

ll j

oi

nt 

rot

a

tin

g 

torq

ue

S

te

eri

ng

 ou

te

r so

cke

t 

bal

l jo

in

t 

en

d pl

ay

P

ower 

ste

eri

ng

 fl

uid

 le

ak

ag

e

S

te

e

ring

 whe

e

l pl

ay

S

teering wheel t

urning force

Dri

ve

 be

lt 

loo

sen

es

s

Im

pro

p

er

 st

ee

ring

 wh

ee

l

Im

p

rop

er i

ns

tal

la

tio

n o

r lo

os

en

es

s of

 til

t lo

ck

 le

ve

r

M

ou

nt

ing

 ru

bb

er d

et

erio

rat

ion

S

tee

rin

g c

o

lum

n 

de

form

at

ion

 o

r da

ma

ge

Im

p

rop

er i

ns

tal

la

tio

n o

r lo

os

en

es

s of

 st

ee

ring

 c

olu

m

n

S

te

eri

ng

 li

nk

ag

e l

oo

se

ne

ss

P

R

OPE

LLE

R SHAFT

FRO

NT FINAL 

DRIVE

W

H

EEL H

U

B

S

U

S

PENSION

TI

RE

S

ROAD W

H

EEL

DRIV

E SHAFT

BR

AK

E

S

Symptom

Noise

×

×

×

×

×

×

×

×

×

×

×

×

×

×

× ×

×

Shake

×

×

×

×

×

×

×

× ×

×

Vibration

×

×

×

×

×

×

×

×

×

×

Shimmy

×

×

×

×

×

×

×

×

×

Shudder

×

×

×

×

×

×

×

ST-6

< PERIODIC MAINTENANCE >

POWER STEERING FLUID

PERIODIC MAINTENANCE

POWER STEERING FLUID

Checking Fluid Level

INFOID:0000000009883502

Check fluid level, referring to the scale on reservoir tank.

Use HOT range for power steering fluid temperatures of 50

° – 80°C

(122

° – 176°F).

Use COLD range for power steering fluid temperatures of 0

° – 30°C

(32

° – 86°F).

CAUTION:

• Do not overfill.

• Do not reuse any used power steering fluid.

• Recommended power steering fluid is Genuine NISSAN PSF

or equivalent. Refer to 

MA-15, "FOR NORTH AMERICA : Fluids

and Lubricants"

 North America, 

MA-16, "FOR MEXICO : Fluids

and Lubricants"

 Mexico.

Checking Fluid Leakage

INFOID:0000000009883503

Check the hydraulic piping lines for improper attachment and for

leaks, cracks, damage, loose connections, chafing or deterioration.
1. Run engine until power steering fluid temperature reaches 50

° –

80

°C (122° – 176°F) in reservoir tank. Keep engine speed idle.

2. Turn steering wheel right-to-left several times.
3. Hold steering wheel at each “lock” position for five seconds to

check fluid leakage.

CAUTION:

Do not hold steering wheel in a locked position for more

than 10 seconds. (There is the possibility that oil pump may

be damaged.)

4. If power steering fluid leakage at connections is noticed, then loosen flare nut and then retighten. Do not

over tighten connector as this can damage O-ring, washer and connector.

5. If power steering fluid leakage from oil pump is noticed, check power steering oil pump. Refer to 

ST-10

.

6. Check steering gear boots for accumulation of power steering fluid indicating a leak from the power steer-

ing gear.

Air Bleeding Hydraulic System

INFOID:0000000009883504

Incomplete air bleeding causes the following. When this happens, bleed air again.

• Air bubbles in reservoir tank.

• Clicking noise in power steering oil pump.

• Excessive buzzing in power steering oil pump.

NOTE:

When vehicle is stationary or while steering wheel is being turned slowly, some noise may be heard from

power steering oil pump or the power steering gear. This noise is normal and does not affect any system.

1. Stop engine, and then turn steering wheel fully to right and left several times.

CAUTION:

Do not allow steering fluid reservoir tank to go below the MIN level line. Check tank frequently and

add power steering fluid as needed.

2. Run engine at idle speed. Turn steering wheel fully right and then fully left, hold for about three seconds.

Then check for power steering fluid leakage.

3. Repeat step 2 several times at about three second intervals.

CAUTION:

Do not hold steering wheel in the locked position for more than 10 seconds. (There is the possibil-

ity that the power steering oil pump may be damaged.)

4. Check for air bubbles or cloudy fluid.

LGIA0021E

SGIA0506E

POWER STEERING FLUID

ST-7

< PERIODIC MAINTENANCE >

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5. If air bubbles or cloudiness still exists, stop engine, perform steps 2 and 3 again until air bubbles or cloud-

iness does not exist.

6. Stop engine, check power steering fluid level.