Nissan Frontier D22. Manual - part 676

NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTING

EM-11

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NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTING

PFP:00003

Noise, Vibration and Harshness (NVH) 

EBS00GS5

AEM466

EM-12

[KA24DE]

NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTING

NVH TROUBLESHOOTING CHART — ENGINE NOISE

Use the chart below to help you find the cause of the symptom.

1.

Locate the area where noise occurs.

2.

Confirm the type of noise.

3.

Specify the operating condition of the engine.

4.

Check the 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

Reference 

page

Before 

warm-

up

After 

warm-

up

When 

start-

ing

When 

idling

Whe

n rev-

ving

While 

driv-

ing

Top of 
engine
Rocker 
cover
Cylinder 
head

Ticking or 
clicking

C

A

—

A

B

—

Tappet 
noise

Valve clearance

EM-37

Rattle

C

A

—

A

B

C

Camshaft 
bearing 
noise

Camshaft journal clearance
Camshaft runout

EM-36

Crank-
shaft pulley
Cylinder 
block 
(upper side 
of engine)
Oil pan

Slap or 
knock

—

A

—

B

B

—

Piston pin 
noise

Piston and piston pin clear-
ance
Connecting rod bushing 
clearance

EM-50

, or 

EM-57

Slap or 
rap

A

—

—

B

B

A

Piston slap 
noise

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

EM-51

, 

EM-51

 , 

EM-51

 , or 

EM-52

Knock

A

B

C

B

B

B

Connect-
ing rod-
bearing 
noise

Connecting rod bearing 
clearance (Big end)
Connecting rod bushing 
clearance (Small end)

EM-56

, or 

EM-57

Knock

A

B

—

A

B

C

Main bear-
ing noise

Crankshaft runout
Main bearing oil clearance

EM-53

, or 

EM-54

Front of 
engine
Timing 
chain 
cover

Tapping or 
ticking

A

A

—

B

B

B

Timing 
chain and 
chain ten-
sioner 
noise

Timing chain cracks and 
wear

EM-24

Front of 
engine

Squeak-
ing or fizz-
ing

A

B

—

B

—

C

Drive belts 
(Sticking or 
slipping)

Drive belt deflection

MA-16, 
"DRIVE 
BELT 
DEFLEC-
TION AND 
TENSION"

Creaking

A

B

A

B

A

B

Drive belts 
(Slipping)

Idler pulley bearing opera-
tion

Squall
creak

A

B

—

B

A

B

Water 
pump 
noise

Water pump operation

CO-11, 
"Inspec-
tion"

OUTER COMPONENT PARTS

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OUTER COMPONENT PARTS

PFP:00100

Removal and Installation

EBS00GS6

Engine Outer Components

WBIA0232E

EM-14

[KA24DE]

OUTER COMPONENT PARTS

Ignition System Outer Components

1.

Throttle body

2.

EGR temperature sensor

3.

EGR valve

4.

EGR tube

5.

Oil dipstick

6.

Exhaust manifold

7.

Heated oxygen sensor 1

8.

Exhaust manifold cover

9.

TWC (manifold)

10. TWC (manifold) gaskets

11.

Exhaust manifold gaskets

12. Crankshaft pulley

13. Generator bracket

14. Generator

15. Water pump

16. Adjusting bar

17. Water pump pulley

18. Oil pressure switch

19. Oil filter

20. Oil filter bracket

21. Knock sensor

22. Water inlet

23. Thermostat

24. Intake manifold bracket

WBIA0180E

1.

Spark plug

2.

Ignition wires

3.

Camshaft position sensor built into 
distributor

4.

EGR tube

5.

Exhaust manifold

6.

Heated oxygen sensor 1

7.

Exhaust manifold cover

8.

TWC (manifold)

9.

TWC (manifold) gaskets