Nissan Primera P11. Instruction — 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
Rattle
C
A
—
A
B
C
Camshaft
bearing
noise
Camshaft journal clear-
ance
Camshaft runout
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
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
Knock
A
B
C
B
B
B
Connecting
rod-bearing
noise
Connecting rod bearing
clearance (Big end)
Connecting rod bushing
clearance (Small end)
Knock
A
B
—
A
B
C
Main bear-
ing noise
Main bearing oil clear-
ance
Crankshaft runout
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
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
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