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Nissan Pathfinder (2009 year). Manual - part 140

CO-28

< ON-VEHICLE REPAIR >

[VQ40DE]

WATER INLET AND THERMOSTAT ASSEMBLY

Check valve operation.
• Place a thread so that it is caught in the valve of the thermo-

stat. Immerse fully in a container filled with water. Heat while
stirring.

• The valve opening temperature is the temperature at which

the valve opens and falls from the thread.

• Continue heating. Check the full-open lift amount.
• After checking the full-open lift amount, lower the water tem-

perature and check the valve closing temperature.

• If valve seating at ordinary room temperature, or measured values are out of standard, replace water inlet

and thermostat assembly.

INSTALLATION

Installation is in the reverse order of removal, paying attention to the following.
• Do not spill engine coolant in engine room. Use rag to absorb engine coolant.

INSPECTION AFTER INSTALLATION

• Check for leaks of engine coolant. Refer to

CO-11, "System Inspection"

• Start and warm up engine. Visually check for leaks of engine coolant.

SLC949A

Thermostat

Standard

Valve opening temperature

80.5 - 83.5

C (177 - 182

Full-open lift amount

8.6 mm / 95

C (0.339 in / 203

Valve closing temperature

C (171

2009 Pathfinder

WATER OUTLET AND WATER PIPING

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< ON-VEHICLE REPAIR >

[VQ40DE]

WATER OUTLET AND WATER PIPING

Exploded View

INFOID:0000000003939402

Removal and Installation

INFOID:0000000003939403

REMOVAL

Drain engine coolant from radiator. Refer to

CO-12, "Changing Engine Coolant"

CAUTION:

• Perform this step when engine is cold.
• Do not spill engine coolant on drive belts.

Remove A/T fluid charging pipe Refer to

TM-214, "2WD : Exploded View"

TM-217, "4WD : Exploded

View"

Remove the rocker cover (right bank). Refer to

EM-41, "Removal and Installation"

Remove engine coolant temperature sensor as necessary.

CAUTION:

Be careful not to damage engine coolant temperature sensor.

Remove water outlet, heater pipe, water bypass hoses and water pipe.

INSTALLATION

Installation is in the reverse order of removal, paying attention to the following.
• Securely insert each hose, and install clamp at a position where it does not interfere with the pipe bulge.
• When inserting water pipe into water outlet, apply neutral detergent to O-ring.

INSPECTION AFTER INSTALLATION

• Check for leaks of engine coolant. Refer to

CO-11, "System Inspection"

Engine coolant temperature sensor

Washer

Water outlet

Heater hose

O-ring

Water pipe

Water hose

Radiator hose (upper)

Water hose

10. Water hose

11.

Gasket

12.

Heater pipe

13. Heater hose

14.

Gasket

WBIA0615E

2009 Pathfinder

CO-30

< ON-VEHICLE REPAIR >

[VQ40DE]

WATER OUTLET AND WATER PIPING

• Start and warm up engine. Visually check for leaks of engine coolant.

2009 Pathfinder

SERVICE DATA AND SPECIFICATIONS (SDS)

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< SERVICE DATA AND SPECIFICATIONS (SDS)

[VQ40DE]

SERVICE DATA AND SPECIFICATIONS (SDS)

Standard and Limit

INFOID:0000000003939404

ENGINE COOLANT CAPACITY (APPROXIMATE)

Unit:

(US qt, Imp qt)

RADIATOR

Unit: kPa (kg/cm

, psi)

THERMOSTAT

Engine coolant capacity (With reservoir tank at
“MAX” level)

Without rear A/C

10.2 (10-3/4, 9)

With rear A/C

13.4 (14-1/8, 11-3/4)

Cap relief pressure

Standard

78 - 98 (0.8 - 1.0, 11 - 14)

Limit

59 (0.6, 9)

Leakage testing pressure

137 (1.4, 20)

Valve opening temperature

80.5 - 83.5

C (177 - 182

Full-open lift amount

8.6 mm / 95

C (0.339 in / 203

Valve closing temperature

C (171

2009 Pathfinder

CO-32

< PRECAUTION >

[VK56DE]

PRECAUTIONS

PRECAUTION

PRECAUTIONS

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"

INFOID:0000000003939405

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SR and SB section of this Service Man-
ual.

WARNING:

• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the SR section.

• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this

Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.

Precaution Necessary for Steering Wheel Rotation After Battery Disconnect

INFOID:0000000004448907

NOTE:
• This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT SYS-

TEM).

• Remove and install all control units after disconnecting both battery cables with the ignition knob in the

″

LOCK

″

position.

• Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.

If DTC is detected, perform trouble diagnosis according to self-diagnostic results.

For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.

OPERATION PROCEDURE

Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.

Use the Intelligent Key or mechanical key to turn the ignition switch to the

″

ACC

″

position. At this time, the

steering lock will be released.

Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.

Perform the necessary repair operation.

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.)

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

Precaution for Liquid Gasket

INFOID:0000000003939406

REMOVAL OF LIQUID GASKET SEALING

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

2009 Pathfinder

PRECAUTIONS

CO-33

< PRECAUTION >

[VK56DE]

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

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.

Thoroughly clean the mating surfaces and remove adhering
moisture, grease and foreign material.

Attach the liquid gasket tube to the Tool.

Use Genuine RTV Silicone Sealant or equivalent. Refer to

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 manual, observe them.

Tool number

: KV10111100 (J-37228)

WBIA0566E

PBIC0003E

Tool number

: WS39930000 (

—

)

WBIA0567E

SEM159F

2009 Pathfinder

CO-34

< PREPARATION >

[VK56DE]

PREPARATION

PREPARATION

Special Service Tool

INFOID:0000000003939407

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

Commercial Service Tool

INFOID:0000000003939408

Tool number
(Kent-Moore No.)
Tool name

Description

KV10111100
(J-37228)
Seal cutter

Removing steel oil pan and rear timing chain
case

WS39930000
(

—

)

Tube pressure

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)

KV991J0070
(J-45695)
Coolant Refill Tool

Refilling engine cooling system

—

(J-23688)
Engine coolant refractometer

Checking concentration of ethylene glycol in
engine coolant

NT046

S-NT052

S-NT564

LMA053

WBIA0539E

2009 Pathfinder

PREPARATION

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< PREPARATION >

[VK56DE]

Tool name

Description

Power tool

Loosening bolts and nuts

Radiator cap tester

Checking radiator and radiator cap

Coolant system tester adapter

Adapting radiator cap tester to reservoir filler
neck

Coolant system tester adapter

Adapting radiator cap tester to reservoir cap

PBIC0190E

PBIC1982E

WBIA0408E

WBIA0409E

2009 Pathfinder

Content .. 138 139 140 141 ..