Nissan Juke F15. Instruction — part 188
DESCRIPTION
CO-35
< SYSTEM DESCRIPTION >
[MR EXCEPT FOR NISMO RS MODELS]
C
D
E
F
G
H
I
J
K
L
M
A
CO
N
P
O
Engine Cooling System Schematic
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CVT models
JPBIA7036GB
CO-36
< SYSTEM DESCRIPTION >
[MR EXCEPT FOR NISMO RS MODELS]
DESCRIPTION
M/T models
JSBIA5998GB
RADIATOR
CO-37
< BASIC INSPECTION >
[MR EXCEPT FOR NISMO RS MODELS]
C
D
E
F
G
H
I
J
K
L
M
A
CO
N
P
O
BASIC INSPECTION
RADIATOR
Cleaning the Radiator
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Check radiator for mud or clogs, and follow the procedure below to remove any that are found.
CAUTION:
• Never bend or damage radiator fin.
• When cleaning radiator mounted to the vehicle, remove surrounding parts such as cooling fan
assembly and horn. Cover harnesses and connectors with tape, never expose those parts to water.
1. Flush with water vertically by hose from back of radiator.
• Repeat cleaning. Be careful not to wash continuously with water at the same location.
2. Clean dirt from radiator completely.
3. Blow-dry vertically from back of radiator with compressed air.
CAUTION:
Blow-dry from a location 30 cm or more away from radiator, using a pressure of less than
0.49 MPa (5 kg/cm
2
).
• Do not blow-dry continuously at the same location. Continue blow-drying until there is no water.
CO-38
< SYMPTOM DIAGNOSIS >
[MR EXCEPT FOR NISMO RS MODELS]
OVERHEATING CAUSE ANALYSIS
SYMPTOM DIAGNOSIS
OVERHEATING CAUSE ANALYSIS
Diagnosis Chart by Symptom
INFOID:0000000012197553
Symptom
Inspection item
Cooling sys-
tem mal-
functions
Poor heat radiation
Water pump malfunction
Drive belt looseness or
wear
—
Multi-way control valve is
stuck closed.
—
Damage of radiator fins
Clogging by mud or foreign
substance
Physical damage
Clogged radiator hose
Foreign substance intru-
sion (corrosion, mud, sand,
etc.)
Reduced cooling airflow
Cooling fan does not oper-
ate
Cooling fan assembly
—
Poor cooling fan rotation
Damage of cooling fan
Damage of radiator shroud
—
—
—
Incorrect LLC concentra-
tion
—
—
—
Deteriorated coolant
—
LLC concentration
—
Low coolant level
Coolant leakage
Radiator hose
Loose hose clamps
Cracks and fractures of
hose
Water pump
Poor seal
Radiator cap
Looseness
Poor seal
Radiator
Damage, deterioration, or
poor installation of O-ring
Cracks and fractures of ra-
diator tank
Cracks and fractures of ra-
diator core
Reservoir tank
Cracking of reservoir tank
cap
Overflow of coolant from
the reservoir tank
Entry of combustion gas
into the cooling system
Cylinder head distortion
Deterioration of cylinder
head gasket
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