Nissan Juke F15. Manual — part 181
DESCRIPTION
CO-7
< SYSTEM DESCRIPTION >
[MR FOR NISMO RS MODELS]
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Engine Cooling System Schematic
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M/T models
CVT models
JPBIA4335GB
JPBIA4334GB
CO-8
< SYMPTOM DIAGNOSIS >
[MR FOR NISMO RS MODELS]
OVERHEATING CAUSE ANALYSIS
SYMPTOM DIAGNOSIS
OVERHEATING CAUSE ANALYSIS
Troubleshooting Chart
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Symptom
Check items
Cooling sys-
tem parts
malfunction
Poor heat transfer
Water pump malfunction
Worn or loose drive belt
—
Thermostat and water con-
trol valve stuck closed
—
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
—
—
—
Improper engine coolant
mixture ratio
—
—
—
Poor engine coolant quality
—
Engine coolant viscosity
—
Insufficient engine coolant
Engine coolant leakage
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 leakage into
cooling system
Cylinder head deterioration
Cylinder head gasket deteri-
oration
OVERHEATING CAUSE ANALYSIS
CO-9
< SYMPTOM DIAGNOSIS >
[MR FOR NISMO RS MODELS]
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F
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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
—
—
Blocked radiator grille
Installed car brassiere
Mud contamination or paper
clogging
Blocked radiator
—
Blocked condenser
Blocked air flow
Installed large fog lamp
Symptom
Check items
CO-10
< PERIODIC MAINTENANCE >
[MR FOR NISMO RS MODELS]
ENGINE COOLANT
PERIODIC MAINTENANCE
ENGINE COOLANT
Inspection
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LEVEL
• Check that the reservoir tank engine coolant level is within the
“MIN” to “MAX” when the engine is cool.
• Adjust the engine coolant level if necessary.
CAUTION:
Refill Genuine NISSAN Long Life Antifreeze/Coolant (blue) or
equivalent in its quality mixed with water (distilled or deminer-
alized). Refer to
MA-11, "Fluids and Lubricants"
LEAKAGE
• To check for leakage, apply pressure to the cooling system with the
radiator cap tester (commercial service tool) (A) and the radiator
cap tester adapter (commercial service tool) (B).
WARNING:
Never remove radiator cap when engine is hot. Serious burns
may occur from high-pressure engine coolant escaping from
engine cooling system.
CAUTION:
Higher test pressure than specified may cause radiator dam-
age.
NOTE:
In a case that engine coolant decreases, replenish radiator with engine coolant.
• If anything is found, repair or replace damaged parts.
Draining
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WARNING:
• Never remove radiator cap when engine is hot. Serious burns may occur from high-pressure engine
coolant escaping from radiator.
• Wrap a thick cloth around the radiator cap. Slowly turn it a quarter of a turn to release built-up pres-
sure. Then turn it all the way.
1. Connect drain hose.
• Use a genera-purpose hose with the dimensions show in the
figure.
A : MAX
B : MIN
JPBIA0102ZZ
Testing pressure: Refer to
PBIC5121J
A
:
φ 8 mm (0.31 in)
B
: 300 mm (11.81 in)
JPBIA4770ZZ
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