Nissan Maxima. Instruction — part 298

CO-4

< PREPARATION >

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PREPARATION

PREPARATION

PREPARATION

Special Service Tool

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The actual shapes of the tools may differ from those illustrated here.

Commercial Service Tool

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Tool number
(TechMate No.)
Tool name

Description

WS39930000
(

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Tube presser

Pressing the tube of liquid gasket

EG17650301
(J-33984-A)
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)

KV10111100
(J-37228)
Seal cutter

Removing chain tensioner cover and water
pump cover

KV991J0070
(J-45695)
Coolant refill tool

Refilling engine cooling system

KV991J0010
(J-23688)
Engine coolant refractometer

Checking concentration of ethylene glycol in
engine coolant

S-NT052

S-NT564

NT046

LMA053

WBIA0539E

PREPARATION

CO-5

< PREPARATION >

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Tool name

Description

Power tool

Loosening nuts, screws and bolts

Radiator cap tester

Testing radiator cap

PIIB1407E

PBIC1982E

CO-6

< SYSTEM DESCRIPTION >

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OVERHEATING CAUSE ANALYSIS

SYSTEM DESCRIPTION

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 stuck closed

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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 coolant mixture
ratio

—

Coolant viscosity

—

Poor coolant quality

—

—

Insufficient coolant

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 leaks into cool-
ing system

Cylinder head deterioration

Cylinder head gasket deteri-
oration

OVERHEATING CAUSE ANALYSIS

CO-7

< SYSTEM DESCRIPTION >

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Except cool-
ing system
parts mal-
function

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Overload on engine

Abusive driving

High engine rpm under no
load

Driving in low gear for ex-
tended time

Driving at extremely high
speed

Powertrain system malfunc-
tion

—

Installed improper size
wheels and tires

Dragging brakes

Improper ignition timing

Blocked or restricted air
flow

Blocked bumper

Blocked air flow

—

Blocked radiator grille

Installed car brassiere

Mud contamination or paper
clogging

Blocked radiator

Blocked air flow

Blocked condenser

Installed large fog lamp

Symptom

Check items