Nissan March K13. Manual - part 60

CO-4

< PREPARATION >

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PREPARATION

PREPARATION

PREPARATION

Commercial Service Tools

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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

DESCRIPTION

CO-5

< SYSTEM DESCRIPTION >

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SYSTEM DESCRIPTION

DESCRIPTION

Engine Cooling System

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WITH EGR CONTROL VALVE

WITHOUT EGR CONTROL VALVE

JPBIA3438GB

JPBIA3439GB

CO-6

< SYSTEM DESCRIPTION >

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DESCRIPTION

Engine Cooling System Schematic

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WITH EGR CONTROL VALVE

WITHOUT EGR CONTROL VALVE

JPBIA3442GB

JPBIA3441GB

OVERHEATING CAUSE ANALYSIS

CO-7

< SYMPTOM DIAGNOSIS >

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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