Nissan Pathfinder (2011 year). Instruction — part 379
PRECAUTIONS
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PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
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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
Instruction. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the
battery, and wait at least 3 minutes before performing any service.
Precaution Necessary for Steering Wheel Rotation After Battery Disconnect
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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
1. Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
2. 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.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
2011 Pathfinder
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PRECAUTIONS
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 Drain Engine Coolant
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Drain engine coolant when engine is cooled.
Precaution for Disconnecting Fuel Piping
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• Before starting work, make sure no fire or spark producing items are in the work area.
• Release fuel pressure before disconnecting and disassembly.
• After disconnecting pipes, plug openings to stop fuel leakage.
Precaution for Removal and Disassembly
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• When instructed to use special service tools, use the specified tools. Always be careful to work safely, avoid
forceful or uninstructed operations.
• Exercise maximum care to avoid damage to mating or sliding surfaces.
• Cover openings of engine system with tape or the equivalent, if necessary, to seal out foreign materials.
• Mark and arrange disassembly parts in an organized way for easy troubleshooting and assembly.
• When loosening nuts and bolts, as a basic rule, start with the one furthest outside, then the one diagonally
opposite, and so on. If the order of loosening is specified, do exactly as specified. Power tools may be used
where noted in the step.
Precaution for Inspection, Repair and Replacement
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Before repairing or replacing, thoroughly inspect parts. Inspect new replacement parts in the same way, and
replace if necessary.
Precaution for Assembly and Installation
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• Use torque wrench to tighten bolts or nuts to specification.
• When tightening nuts and bolts, as a basic rule, equally tighten in several different steps starting with the
ones in center, then ones on inside and outside diagonally in this order. If the order of tightening is specified,
do exactly as specified.
• Replace with new gasket, packing, oil seal or O-ring.
• Thoroughly wash, clean, and air-blow each part. Carefully check engine oil or engine coolant passages for
any restriction and blockage.
• Avoid damaging sliding or mating surfaces. Completely remove foreign materials such as cloth lint or dust.
Before assembly, oil sliding surfaces well.
• Release air within route when refilling after draining engine coolant.
• Before starting engine, apply fuel pressure to fuel lines with turning ignition switch ON (with engine stopped).
Then make sure that there are no leaks at fuel line connections.
• After repairing, start engine and increase engine speed to check engine coolant, fuel, engine oil, and
exhaust systems for leakage.
Parts Requiring Angular Tightening
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• For final tightening of the following engine parts use Tool:
- Cylinder head bolts
- Main bearing cap bolts
- Connecting rod cap bolts
- Crankshaft pulley bolt (No angle wrench is required as the bolt flange is provided with notches for angle
tightening)
• Do not use a torque value for final tightening.
• The torque value for these parts are for a preliminary step.
• Ensure thread and seat surfaces are clean and lightly coated with engine oil.
Tool number
: KV10112100 (BT-8653-A)
2011 Pathfinder
PRECAUTIONS
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Precaution for Liquid Gasket
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REMOVAL OF LIQUID GASKET SEALING
• After removing nuts and bolts, separate the mating surface and
remove old liquid gasket sealing using Tool.
CAUTION:
Be careful not to damage the mating surfaces.
• Tap seal cutter to insert it (1), and then slide it by tapping on the
side (2) 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 tool such as screwdriver 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
GI-14, "Recommended Chemical Products and Sealants"
.
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 nuts or bolts 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
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PREPARATION
Special Service Tool
INFOID:0000000006247055
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
16441 6N210
(J-45488)
Quick connector release
Removing fuel tube quick connectors in en-
gine room
(Available in SEC. 164 of PARTS CATALOG:
Part No. 16441 6N210)
—
(J-46535)
Drive belt tension releaser
Releasing drive belt tension
KV10111100
(J-37228)
Seal cutter
Removing steel oil pan and rear timing chain
case
WS39930000
( — )
Tube presser
Pressing the tube of liquid gasket
—
(J-44626)
Air fuel sensor Socket
Loosening or tightening air fuel ratio A/F sen-
sor
a: 22 mm (0.87 in)
EG15050500
(J-45402)
Compression gauge adapter
Inspecting compression pressure
PBIC0198E
WBIA0536E
S-NT046
S-NT052
LBIA0444E
ZZA1225D
2011 Pathfinder
PREPARATION
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KV10116200
(J-26336-B)
Valve spring compressor
1. KV10115900
(J-26336-20)
Attachment
2. KV10109220
( — )
Adapter
Disassembling valve mechanism
Part (1) is a component of KV10116200 (J-
26336-B), but part (2) is not.
KV10107902
(J-38959)
Valve oil seal puller
Removing valve oil seal
KV10115600
(J-38958)
Valve oil seal drift
Installing valve oil seal
Use side A.
a: 20 (0.79) dia. d: 8 (0.31) dia.
b: 13 (0.51) dia. e: 10.7 (0.421) dia.
c: 10.3 (0.406) dia. f: 5 (0.20) dia.
Unit: mm (in)
EM03470000
(J-8037)
Piston ring compressor
Installing piston assembly into cylinder bore
KV10112100
(BT-8653-A)
Angle wrench
Tightening bolts for cylinder head, main bear-
ing cap, connecting rod cap and Crankshaft
pulley
ST16610001
(J-23907)
Pilot bushing puller
Removing crankshaft pilot bushing
Tool number
(Kent-Moore No.)
Tool name
Description
PBIC1650E
S-NT011
S-NT603
S-NT044
AWBIA1043ZZ
S-NT045
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Commercial Service Tool
INFOID:0000000006247056
—
(J-47245)
Ring gear stopper
Removing and installing crankshaft pulley
—
(J-45816)
E20 Torx® Socket
Loosening and tightening cylinder head bolts
Tool number
(Kent-Moore No.)
Tool name
Description
LBIA0451E
LBIA0285E
(Kent-Moore No.)
Tool name
Description
Power tool
Loosening bolts, screws and nuts
Spark plug wrench
Removing and installing spark plug
Valve seat cutter set
Finishing valve seat dimensions
Pulley puller
Removing crankshaft pulley
PIIB1407E
S-NT047
S-NT048
ZZA0010D
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PREPARATION
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Piston ring expander
Removing and installing piston ring
Valve guide drift
Removing and installing valve guide
Intake & Exhaust:
a: 9.5 mm (0.374 in) dia.
b: 5.5 mm (0.217 in) dia.
Valve guide reamer
1: Reaming valve guide hole
2: Reaming hole for oversize valve guide
Intake & Exhaust:
d
1
: 6.0 mm (0.236 in) dia.
d
2
: 10.175 - 10.196 mm (0.4006 - 0.4014 in)
dia.
Front oil seal drift
Installing front oil seal
Rear oil seal drift
Installing rear oil seal
(J-43897-18)
(J-43897-12)
Oxygen sensor thread cleaner
Reconditioning the exhaust system threads
before installing a new Air Fuel Ratio sensor
and heated oxygen sensor (Use with anti-
seize lubricant shown below.)
a: J-43897-18 (18 mm dia.) (0.71 in)
b: J-43897-12 (12 mm dia.) (0.55 in)
Anti-seize lubricant (Permatex 133AR
or equivalent meeting MIL specifica-
tion MIL-A-907)
Lubricating A/F sensors and heated oxygen
sensor thread cleaning tool when recondition-
ing exhaust system threads
(Kent-Moore No.)
Tool name
Description
S-NT030
S-NT015
S-NT016
ZZA0012D
ZZA0025D
AEM488
AEM489
2011 Pathfinder
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NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTING
SYSTEM DESCRIPTION
NOISE, VIBRATION, AND HARSHNESS (NVH) TROUBLESHOOTING
NVH Troubleshooting - Engine Noise
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AWBIA0149ZZ
2011 Pathfinder
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