Nissan Note E12. Manual — part 112
CO-4
< SYSTEM DESCRIPTION >
[HR16DE]
DESCRIPTION
SYSTEM DESCRIPTION
DESCRIPTION
Engine Cooling System
INFOID:0000000009444912
M/T models
CVT models
JSBIA1096GB
JSBIA1297GB
DESCRIPTION
CO-5
< SYSTEM DESCRIPTION >
[HR16DE]
C
D
E
F
G
H
I
J
K
L
M
A
CO
N
P
O
Engine Cooling System Schematic
INFOID:0000000009444913
M/T models
CVT models
AWBIA1141GB
AWBIA1142GB
CO-6
< SYMPTOM DIAGNOSIS >
[HR16DE]
OVERHEATING CAUSE ANALYSIS
SYMPTOM DIAGNOSIS
OVERHEATING CAUSE ANALYSIS
Troubleshooting Chart
INFOID:0000000009444914
Symptom
Check items
Cooling sys-
tem parts
malfunction
Poor heat transfer
Water pump malfunction
Worn or loose drive belt
—
Thermostat stuck closed
Thermostat
Damaged fins
Dust contamination or pa-
per clogging
Physical damage
Clogged radiator cooling
tube
Excess foreign material
(rust, dirt, sand, etc.)
Reduced air flow
Cooling fan does not oper-
ate
Fan assembly
—
High resistance to fan rota-
tion
Damaged fan blades
Damaged radiator shroud
—
Radiator shroud
—
Improper engine coolant
mixture ratio
—
Engine coolant viscosity
—
Poor engine coolant quality
—
Periodic maintenance
—
Insufficient engine coolant
Engine coolant leaks
Cooling hose
Loose clamp
Cracked hose
Water pump
Poor sealing
Radiator cap
Loose
Poor sealing
Radiator
O-ring for damage, deterio-
ration or improper fitting
Cracked radiator tank
Cracked radiator core
Reservoir tank
Cracked reservoir tank
Overflowing reservoir tank
Exhaust gas leaking into
cooling system
Cylinder head deterioration
Cylinder head gasket deteri-
oration
OVERHEATING CAUSE ANALYSIS
CO-7
< SYMPTOM DIAGNOSIS >
[HR16DE]
C
D
E
F
G
H
I
J
K
L
M
A
CO
N
P
O
Except cool-
ing system
parts mal-
function
—
Overload on engine
Abusive driving
High engine rpm under no
load
Driving in low gear for ex-
tended time
Driving at extremely high
speed
Power train system mal-
function
—
Installed improper size
wheels and tires
Dragging brakes
Improper ignition timing
Blocked or restricted air
flow
Blocked bumper
Installed front bumper fas-
cia cover
—
Blocked radiator grille
Mud contamination or paper
clogging
Blocked radiator
Blocked air flow
Blocked condenser
Installed large fog lamp
Symptom
Check items
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