Nissan X-Trail 32. Instruction — part 302
CO-34
< PREPARATION >
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PREPARATION
PREPARATION
PREPARATION
Commercial Service Tools
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Lubricant or/and Sealant
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Tool name
Description
Radiator cap tester
Checking radiator and radiator cap
Radiator cap tester adapter
Adapting radiator cap tester to radiator cap
and radiator filler neck
a: 28 (1.10) dia.
b: 31.4 (1.236) dia.
c: 41.3 (1.626) dia.
Unit: mm (in)
PBIC1982E
S-NT564
Name
Description
Note
Three bond 1303
Cooling fan
Fan moter shaft
DESCRIPTION
CO-35
< SYSTEM DESCRIPTION >
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C
D
E
F
G
H
I
J
K
L
M
A
CO
N
P
O
SYSTEM DESCRIPTION
DESCRIPTION
Engine Cooling System
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Cylinder head
Cylinder block
Water pump
Thermostat
Water inlet
Radiator
Thermostat housing (Cylinder block)
Water outlet
To electric throttle control actuator
To oil cooler
To CVT oil warmer
To heater
From heater
From electric throttle control actuator
From oil cooler
From CVT oil warmer
JPBIA6488GB
CO-36
< SYSTEM DESCRIPTION >
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DESCRIPTION
Engine Cooling System Schematic
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JPBIA6489GB
OVERHEATING CAUSE ANALYSIS
CO-37
< SYMPTOM DIAGNOSIS >
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C
D
E
F
G
H
I
J
K
L
M
A
CO
N
P
O
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 radiator 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 density
—
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 leaks into cool-
ing system
Cylinder head deterioration
Cylinder head gasket deteri-
oration
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