Nissan X-Trail 32. Manual — part 1067

NOISE, VIBRATION AND HARSHNESS (NVH) TROUBLESHOOTING

EM-165

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4.

Check specified noise source.

If necessary, repair or replace these parts.

A: Closely related

B: Related

C: Sometimes related

—: Not related

Location

of noise

Type of

noise

Operating condition of engine

Source of

noise

Check item

Refer-

ence page

Before

warm-

up

After

warm-

up

When

start-

ing

When

idling

When

racing

While

driving

Top of en-
gine
Rocker
cover
Cylinder
head

Ticking or
clicking

C

A

—

A

B

—

Tappet
noise

Valve clearance

EM-159

Rattle

C

A

—

A

B

C

Camshaft
bearing
noise

Camshaft journal oil
clearance
Camshaft runout

EM-228

Crank-
shaft pul-
ley
Cylinder
block
(Side of
engine)
Oil pan

Slap or
knock

—

A

—

B

B

—

Piston pin
noise

Piston to piston pin oil
clearance
Connecting rod bushing
oil clearance

EM-256

Slap or
rap

A

—

—

B

B

A

Piston
slap noise

Piston to cylinder bore
clearance
Piston ring side clear-
ance
Piston ring end gap
Connecting rod bend
and torsion

EM-280
EM-280
EM-280
EM-280

Knock

B

A

C

B

B

B

Connect-
ing rod
bearing
noise

Connecting rod bushing
oil clearance
Connecting rod bearing
oil clearance

EM-280
EM-284

Knock

B

A

—

A

B

C

Main bear-
ing noise

Main bearing oil clear-
ance
Crankshaft runout

EM-283
EM-280

Front of
engine
Front cov-
er

Tapping or
ticking

A

A

—

B

B

B

Timing
chain and
chain ten-
sioner
noise

Timing chain cracks
and wear
Timing chain tensioner
operation

EM-219

EM-211

Front of
engine

Squeak-
ing or fizz-
ing

A

B

—

B

B

B

Drive belt
(Sticking
or slip-
ping)

Drive belt deflection

EM-166

Creaking

A

B

A

B

A

B

Drive belt
(Slipping)

Idler pulley bearing op-
eration

Squall
Creak

A

B

—

B

A

B

Water
pump
noise

Water pump operation

CO-50

EM-166

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DRIVE BELTS

PERIODIC MAINTENANCE

DRIVE BELTS

Exploded View

INFOID:0000000010783767

Removal and Installation

INFOID:0000000010783768

REMOVAL

1.

Turn the steering wheel to the right.

2.

Remove the splash guard (RH). Refer to

EXT-35, "FENDER PROTECTOR : Exploded View"

.

3.

Securely hold the hexagonal part

of drive belt auto-tensioner

using suitable tool, and move in the direction of arrow (

)

(loosening direction of tensioner).

CAUTION:

Avoid placing hand in a location where pinching may occur
if the holding tool accidentally comes off.

4.

Insert a rod approximately 6.0 mm (0.24 in) in diameter through
the rear of the drive belt auto-tensioner into retaining boss

to

lock drive belt auto-tensioner pulley.
NOTE:
Leave drive belt auto-tensioner pulley arm locked until drive belt
is installed again.

5.

Loosen drive belt from drive belt auto-tensioner and then remove it from the other pulleys.

INSTALLATION

1.

Install the drive belt onto all of the pulleys except for the drive belt auto-tensioner. Then install the drive
belt onto drive belt auto-tensioner last.

CAUTION:

Confirm belts are completely set on the pulleys.

Alternator

Water pump

Drive belt auto tensioner

Crankshaft pulley

A/C compressor

View A

Possible use range

Range when new drive belt is in-
stalled

Indicator (notch on the fixed side)

: Engine front

JSBIA3312ZZ

ALBIA0879GB

DRIVE BELTS

EM-167

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2.

Release drive belt auto-tensioner, and apply tension to drive belt.

3.

Turn crankshaft pulley clockwise several times to equalize tension between each pulley.

4.

Confirm the indicator is within the possible use range. Refer to

EM-167, "Inspection"

.

5.

Install the splash guard (RH). Refer to

EXT-35, "FENDER PROTECTOR : Exploded View"

.

Inspection

INFOID:0000000010783769

WARNING:

Perform this step when engine is stopped.
• Check that the indicator

(notch on fixed side) of drive belt auto-tensioner is within the possible use range

in the figure.

NOTE:
• Check the drive belt auto-tensioner indication when the engine is cold.
• When new drive belt is installed, the indicator (notch on fixed side) should be within the range

in the fig-

ure.

• Visually check entire drive belt for wear, damage or cracks.
• If the indicator (notch on fixed side) is out of the possible use range or belt is damaged, replace drive belt.

Adjustment

INFOID:0000000010783770

Alternator

Water pump

Drive belt auto tensioner

Crankshaft pulley

A/C compressor

View A

Possible use range

Range when new drive belt is in-
stalled

Indicator (notch on the fixed side)

: Engine front

JSBIA3312ZZ

Refer to

:

EM-275, "Drive belt"

.

EM-168

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AIR CLEANER FILTER

AIR CLEANER FILTER

Exploded View

INFOID:0000000010783771

JSBIA4482GB

Air duct assemby

Mounting rubber

Bracket

Bracket

Air duct 1

Resonator Duct

Resonator

Mounting rubber

Color

Air duct 2

Air cleaner cover

Air cleaner element

Mounting rubber

Bracket

Air cleaner body

Mass air flow sensor

To electric throttle control actuator

To rocker cover

: Always replace after every disassembly.

: N·m (kg-m, in-lb)

: N·m (kg-m, ft-lb)