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Nissan Pathfinder (2011 year). Instruction - part 133

PRECAUTIONS

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< PRECAUTION >

[VK56DE]

5. When the repair work is completed, return the ignition switch to the

″

LOCK

″

position before connecting

the battery cables. (At this time, the steering lock mechanism will engage.)

6. Perform a self-diagnosis check of all control units using CONSULT-III.

Precaution for Liquid Gasket

INFOID:0000000006247867

REMOVAL OF LIQUID GASKET SEALING

• After removing nuts and bolts, separate the mating surface, using Tool and remove old liquid gasket sealing.

CAUTION:

Be careful not to damage the mating surfaces.

• Tap (1) Tool to insert it, and then slide (2) it by tapping on the side

as shown.

• In areas where Tool is difficult to use, use plastic hammer to lightly

tap the part, to remove it.

CAUTION:

If for some unavoidable reason suitable tool such as screw-

driver is used, be careful not to damage the mating surfaces.

LIQUID GASKET APPLICATION PROCEDURE

1. Remove the old liquid gasket adhering to the gasket application

surface and the mating surface using suitable tool.

• Remove the liquid gasket completely from the groove of the

liquid gasket application surface, bolts, and bolt holes.

2. Thoroughly clean the mating surfaces and remove adhering

moisture, grease and foreign material.

3. Attach the liquid gasket tube to the Tool.

Use Genuine RTV Silicone Sealant or equivalent. Refer to

4. Apply the liquid gasket without breaks to the specified location

with the specified dimensions.

• If there is a groove for the liquid gasket application, apply the

liquid gasket to the groove.

• As for the bolt holes, normally apply the liquid gasket inside

the holes. If specified in the procedure, it should also be

applied outside the holes.

• Within five minutes of liquid gasket application, install the mat-

ing component.

• If the liquid gasket protrudes, wipe it off immediately.

• Do not retighten after the installation.

• Wait 30 minutes or more after installation before refilling the

engine with engine oil and engine coolant.

CAUTION:

If there are specific instructions in this instruction, observe them.

Tool number

: KV10111100 (J-37228)

WBIA0566E

PBIC0003E

Tool number

: WS39930000 ( — )

WBIA0567E

SEM159F

2011 Pathfinder

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< PREPARATION >

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PREPARATION

PREPARATION

Special Service Tool

INFOID:0000000006247868

The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.

Tool number
(Kent-Moore No.)
Tool name

Description

KV10111100
(J-37228)
Seal cutter

Removing chain tensioner cover and water
pump cover

WS39930000
( — )
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) diameter
b: 31.4 (1.236) diameter
c: 41.3 (1.626) diameter

Unit: mm (in)

KV991J0070
(J-45695)
Coolant refill tool

Filling cooling system

KV991J0010
(J-23688)
Engine coolant refractometer

Checking concentration of ethylene glycol in
engine coolant

—

(J-24460-92)
Radiator Pressure Test Adapter

Pressure testing of the pressurized cooling
system overflow tank

NT046

S-NT052

S-NT564

LMA053

WBIA0539E

AWBIA0891ZZ

2011 Pathfinder

PREPARATION

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< PREPARATION >

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Commercial Service Tool

INFOID:0000000006247869

Tool name

Description

Power tool

Loosening bolts, screws and nuts.

Radiator cap tester

Checking radiator and radiator cap

PIIB1407E

PBIC1982E

2011 Pathfinder

- 3 8

< SYSTEM DESCRIPTION >

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COOLING SYSTEM

SYSTEM DESCRIPTION

COOLING SYSTEM

Cooling Circuit

INFOID:0000000006247870

AWBIA0089ZZ

Cylinder head (LH)

Water cut valve

Cylinder head (RH)

Oil cooler

Reservoir tank

Cylinder block (RH)

Thermostat

Water pump

Cylinder block (LH)

10. Radiator

From heater

To electronic throttle control actuator

To heater

From electronic throttle control actuator

2011 Pathfinder

COOLING SYSTEM

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< SYSTEM DESCRIPTION >

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Schematic

INFOID:0000000006247871

AWBIA0090ZZ

Radiator

Reservoir tank

Thermostat and thermostat housing

Water pump

Cylinder block

Cylinder head

Water cut valve

Heater

Electronic throttle control actuator

10. Oil cooler

Thermostat closed

Thermostat open

2011 Pathfinder

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< SYSTEM DESCRIPTION >

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OVERHEATING CAUSE ANALYSIS

OVERHEATING CAUSE ANALYSIS

Troubleshooting Chart

INFOID:0000000006247872

Symptom

Check items

Cooling sys-
tem parts
malfunction

Poor heat transfer

Water pump malfunction

Worn or loose drive belt

—

Thermostat stuck closed

Coolant circulation

Damaged fins

Dust contamination or pa-
per clogging

Physical damage

Clogged radiator cooling
tube

Excess foreign material
(rust, dirt, sand, etc.)

Water cut valve malfunction

Physical damage

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 engine coolant
mixture ratio

—

Engine coolant viscosity

—

Poor engine coolant quality

—

Insufficient engine coolant

Engine 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

2011 Pathfinder

OVERHEATING CAUSE ANALYSIS

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< SYSTEM DESCRIPTION >

[VK56DE]

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

Powertrain system malfunc-
tion

—

Installed improper size
wheels and tires

Dragging brakes

Improper ignition timing

Blocked radiator grille

Installed car brassiere

Mud contamination or paper
clogging

Blocked radiator

Blocked or restricted air
flow

Blocked bumper

—

Blocked condenser

Blocked air flow

Installed large fog lamp

Symptom

Check items

2011 Pathfinder

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< PERIODIC MAINTENANCE >

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ENGINE COOLANT

PERIODIC MAINTENANCE

ENGINE COOLANT

System Inspection

INFOID:0000000006247873

WARNING:

• Never remove the radiator/reservoir cap when the engine is hot. Serious burns could occur from

high pressure fluid escaping from the radiator or reservoir.

• Wrap a thick cloth around the cap. Slowly push down and turn it a quarter turn to allow built-up pres-

sure to escape. Carefully remove the cap by pushing down and turning it all the way.

CHECKING COOLING SYSTEM HOSES

Check hoses for the following:

• Improper attachment

• Leaks

• Cracks

• Damage

• Loose connections

• Chafing

• Deterioration

CHECKING RESERVOIR LEVEL

• Check if the engine coolant reservoir tank level is within MIN to

MAX level when the engine is cool.

• Adjust engine coolant level as necessary.

CHECKING COOLING SYSTEM FOR LEAKS

WARNING:

Never remove the radiator/reservoir cap when the engine is hot. Serious burns could occur from high-

pressure engine coolant escaping from the radiator or reservoir.

• To check for leakage, apply pressure to the cooling system at the

reservoir filler neck using suitable tool and Tool.

CAUTION:

Higher pressure than specified may cause radiator damage.

NOTE:

In case that engine coolant decreases, replenish cooling system

with engine coolant.

• If any concerns are found, repair or replace damaged parts.

CHECKING RESERVOIR CAP

1. Inspect the reservoir cap.

• Replace the cap if the metal plunger cannot be seen around the edge of the black rubber gasket.

• Replace the cap if deposits of waxy residue or other foreign material are on the black rubber gasket or

the metal retainer.

NOTE:

Thoroughly wipe out the reservoir filler neck to remove any waxy residue or foreign material.

SMA412B

Tool number

: — (J-24460-92)

Leakage test pressure

: 137 kPa (1.4 kg/cm

, 20 psi)

WBIA0612E

2011 Pathfinder

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