Nissan Primera P11. Manual - part 388

NVH Troubleshooting — Engine Noise

NCEM0005S01

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 engine.
4. Check specified noise source.
If necessary, repair or replace these parts.

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

When

racing

While

driving

Top of
Engine
Rocker
Cover Cyl-
inder Head

Ticking or
click

C

A

—

A

B

—

Tappet
noise

Valve clearance

EM-40

Rattle

C

A

—

A

B

C

Camshaft
bearing
noise

Camshaft journal clear-
ance
Camshaft runout

EM-35

Crankshaft
Pulley
Cylinder
block (Side
of Engine)
Oil pan

Slap or
knock

—

A

—

B

B

—

Piston pin
noise

Piston and piston pin
clearance
Connecting rod bushing
clearance

EM-54, 59

Slap or
rap

A

—

—

B

B

A

Piston slap
noise

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

EM-54, 55,
56

Knock

A

B

C

B

B

B

Connecting
rod-bearing
noise

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

EM-58, 59

Knock

A

B

—

A

B

C

Main bear-
ing noise

Main bearing oil clear-
ance
Crankshaft runout

EM-57

Front of
Engine Tim-
ing Chain
Cover

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-24

Front of
Engine

Squeak or
fizzing

A

B

—

B

—

C

Other drive
belts (stick-
ing or slip-
ping)

Drive belts deflection

MA Section
(“Checking
Drive Belts”,
“Engine
Mainte-
nance”)

Creaking

A

B

A

B

A

B

Other drive
belts (slip-
ping)

Idler pulley bearing
operation

Squall or
creak

A

B

—

B

A

B

Water pump
noise

Water pump operation

LC Section
(“Water
Pump
Inspection”,
“Engine
Cooling
System”)

A: Closely related

B: Related

C: Sometimes related

—: Not related

NOISE, VIBRATION AND HARSHNESS

(NVH) TROUBLESHOOTING

QG

NVH Troubleshooting — Engine Noise

EM-11

SEM937F

Camshaft bearing noise

Tappet noise

Timing chain
and chain
tensioner noise

VALVE MECHANISM

Valve

Piston pin noise

TIMING CHAIN

Water pump noise

ROTATION
MECHANISM

DRIVE BELT

Connecting rod
bearing noise

Piston slap noise

Main bearing noise

NOISE, VIBRATION AND HARSHNESS

(NVH) TROUBLESHOOTING

QG

NVH Troubleshooting — Engine Noise (Cont’d)

EM-12

Removal and Installation

NCEM0006

1.

Oil pressure switch

2.

EGR valve*

3.

EGR guide tube*

4.

Air relief plug

5.

Intake manifold

6.

Intake manifold upper support

7.

Intake manifold rear supports

8.

Oil filter

9.

Thermostat

10. Water pump
11. Water pump pulley

*: If so equipped

YEM026

OUTER COMPONENT PARTS

QG

Removal and Installation

EM-13

1.

Throttle position sensor

2.

IACV-AAC valve

3.

Throttle body

4.

Injector

5.

Injector tube

6.

Pressure regulator

7.

Intake manifold

8.

Canister purge control valve

SEM865F

6.9 - 9.5 (0.70 - 0.97, 60.8 - 84.2)

.

6.9 - 9.5 (0.70 - 0.97, 60.8 - 84.2)

6.9 - 9.5 (0.70 - 0.97, 60.8 - 84.2)

6.9 - 9.5
(0.70 - 0.97,
60.8 - 84.2)

2.0 - 2.5
(0.20 - 0.26, 17.4 - 22.6)

1st 12 - 14 (1.2 - 1.4, 9 - 10)

2nd 17 - 24 (1.7 - 2.4, 12 - 17)

Clip

.

O-ring

O-ring

2.9 - 3.8
(0.30 - 0.39,
26.0 - 33.9)

Gasket

Gasket

Gasket

3.0 - 4.0
(0.31 - 0.41, 26.9 - 35.6)

3.0 - 4.0
(0.31 - 0.41, 26.9 - 35.6)

17 - 24 (1.7 - 2.4, 12 - 17)

17 - 24 (1.7 - 2.4, 12 - 17)

: N·m (kg-m, ft-lb)

: N·m (kg-m, in-lb)

: Do not re-use.

Intake manifold bolts and nuts tightening order

Throttle body bolts tightening procedure

1) Tighten all bolts to 9 to 11 N·m (0.9 to 1.1 kg-m, 6.5 to 8.0 ft-lb)
2) Tighten all bolts to 18 to 22 N·m (1.8 to 2.2 kg-m, 13 to 16 ft-lb)

Engine
front

Tighten in numerical order.

Tighten in numerical order.

OUTER COMPONENT PARTS

QG

Removal and Installation (Cont’d)

EM-14