2005 INFINITI FX35 gas type

BL-266
BODY REPAIR
Revision: 2005 July2005 FX
Read the Following Precautions When Repairing HSS:
1. Additional points to consider
lThe repair of reinforcements (such as side members) by heat-
ing is not recommended since it may weaken the component.
When heating is unavoidable, do not heat HSS parts above
550°C (1,022°F).
Verify heating temperature with a thermometer.
(Crayon-type and other similar type thermometer are appro-
priate.)
lWhen straightening body panels, use caution in pulling any
HSS panel. Because HSS is very strong, pulling may cause
deformation in adjacent portions of the body. In this case,
increase the number of measuring points, and carefully pull
the HSS panel.
lWhen cutting HSS panels, avoid gas (torch) cutting if possi-
ble. Instead, use a saw to avoid weakening surrounding areas
due to heat. If gas (torch) cutting is unavoidable, allow a mini-
mummarginof50mm(1.97in).
lWhen welding HSS panels, use spot welding whenever possi-
ble in order to minimize weakening surrounding areas due to
heat.
If spot welding is impossible, use M.I.G. welding. Do not use
gas (torch) welding because it is inferior in welding strength.
PIIA0115E
PIIA0116E
PIIA0117E
PIIA0144E

PRECAUTIONS BR-3
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Revision: 2005 July 2005 FX
PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
AFS0028A
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 SRS 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 per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS 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
harness connectors.
Precautions for Procedures without Cowl Top CoverAFS0038B
When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc.
Precautions for Brake SystemAFS001MQ

Recommended fluid is brake fluid “DOT 3”.

Do not reuse drained brake fluid.

Be careful not to splash brake fluid on painted areas.

To clean or wash all parts of master cylinder, disc brake caliper and wheel cylinder, use clean brake fluid.

Do not use mineral oils such as gasoline or kerosene. They will ruin rubber parts of the hydraulic system.

Use flare nut wrench when removing and installing brake tube.

When installing brake piping, be sure to check torque.

Before working, turn ignition switch OFF and disconnect con-
nectors for ABS actuator and electric unit (control unit) or battery
terminal.

Burnish the brake contact surfaces after refinishing or replacing
drums or rotors, after replacing pads or linings, or if a soft pedal
occurs at very low mileage.
Refer to BR-25, "
BRAKE BURNISHING PROCEDURE" .
WARNING:

Clean brake pads and shoes with a waste cloth, then wipe
with a dust collector.
PIIB3706J
SBR686C

PRECAUTIONS BRC-3
[VDC/TCS/ABS]
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Revision: 2005 July 2005 FX
[VDC/TCS/ABS]PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
AFS00289
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 SRS 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 per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS 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
harness connectors.
Precautions for Brake SystemAFS001S3

Recommended fluid is brake fluid “DOT 3”.

Do not reuse drained brake fluid.

Be careful not to splash brake fluid on painted areas such as body. If brake fluid is splashed, wipe it off
and flush area with water immediately.

Do not use mineral oils such as gasoline or kerosene to clean. They will ruin rubber parts and cause
improper operation.

Using a flare nut crowfoot and torque wrench, securely tighten
brake tube flare nuts.

Brake system is an important safety part. If a brake fluid leak is
detected, always disassemble the affected part. If a malfunction
is detected, replace part with a new one.

Before working, turn ignition switch OFF and disconnect electri-
cal connectors of ABS actuator and electric unit (control unit) or
battery negative terminal.

When installing brake piping, be sure to check torque.
WARNING:
Clean brake pads and shoes with a waste cloth, then wipe with
a dust collector.
Precautions for Brake ControlAFS001S4

During VDC/TCS/ABS operation, brake pedal lightly vibrates and a mechanical noise may be heard. This
is normal.

Just after starting vehicle after turning ignition switch ON, brake pedal may vibrate or motor operating
noise may be heard from engine room. This is a normal status of operation check.

Stopping distance may be longer than that of vehicles without ABS when vehicle drives on rough, gravel,
or snow-covered (fresh, deep snow) roads.

When an error is indicated by ABS or another warning lamp, collect all necessary information from cus-
tomer (what symptoms are present under what conditions) and check for simple causes before starting
diagnostic servicing. Besides electrical system inspection, check booster operation, brake fluid level, and
fluid leaks.

If tire size and type are used in an improper combination, or brake pads are not Genuine NISSAN parts,
stopping distance or steering stability may deteriorate.
SBR686C

CO-1
ENGINE COOLING SYSTEM
B ENGINE
CONTENTS
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Revision: 2005 July 2005 FX
ENGINE COOLING SYSTEM
VQ35DE
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” ............................................................. ..... 3
Precautions for Liquid Gasket ............................. ..... 3
REMOVAL OF LIQUID GASKET SEALING ..... ..... 3
LIQUID GASKET APPLICATION PROCEDURE ..... 3
PREPARATION ...................................................... ..... 5
Special Service Tools .......................................... ..... 5
Commercial Service Tools ................................... ..... 6
OVERHEATING CAUSE ANALYSIS ..................... ..... 7
Troubleshooting Chart ......................................... ..... 7
COOLING SYSTEM ............................................... ..... 9
Cooling Circuit ..................................................... ..... 9
System Chart ...................................................... ... 10
ENGINE COOLANT ............................................... ....11
Inspection ............................................................ .... 11
LEVEL CHECK ................................................ .... 11
LEAK CHECK .................................................. .... 11
Changing Engine Coolant ................................... .... 11
DRAINING ENGINE COOLANT ...................... .... 11
REFILLING ENGINE COOLANT ..................... ... 12
FLUSHING COOLING SYSTEM ...................... ... 13
RADIATOR ............................................................. ... 14
Components ........................................................ ... 14
Removal and Installation ..................................... ... 14
REMOVAL ........................................................ ... 14
INSTALLATION ................................................ ... 15
INSPECTION AFTER INSTALLATION ............ ... 15
Checking Radiator Cap ....................................... ... 15
Checking Radiator ............................................... ... 16
RADIATOR (ALUMINUM TYPE) ........................... ... 17
Components ........................................................ ... 17
Disassembly and Assembly ................................ ... 17
PREPARATION ................................................ ... 17
DISASSEMBLY ................................................ ... 17
ASSEMBLY ...................................................... ... 18
INSPECTION ................................................... ... 20 COOLING FAN .......................................................
... 21
Components ........................................................ ... 21
Removal and Installation ..................................... ... 21
REMOVAL ........................................................ ... 21
INSTALLATION ................................................ ... 21
INSPECTION AFTER INSTALLATION ............. ... 21
Disassembly and Assembly ................................. ... 21
DISASSEMBLY ................................................ ... 21
INSPECTION AFTER DISASSEMBLY ............. ... 21
ASSEMBLY ...................................................... ... 21
WATER PUMP ....................................................... ... 22
Components ........................................................ ... 22
Removal and Installation ..................................... ... 22
REMOVAL ........................................................ ... 22
INSPECTION AFTER REMOVAL .................... ... 24
INSTALLATION ................................................ ... 24
INSPECTION AFTER INSTALLATION ............. ... 25
WATER INLET AND THERMOSTAT ASSEMBLY . ... 26
Components ........................................................ ... 26
Removal and Installation ..................................... ... 26
REMOVAL ........................................................ ... 26
INSPECTION AFTER REMOVAL .................... ... 27
INSTALLATION ................................................ ... 27
INSPECTION AFTER INSTALLATION ............. ... 27
WATER OUTLET AND WATER PIPING ................ ... 28
Components ........................................................ ... 28
Removal and Installation ..................................... ... 28
REMOVAL ........................................................ ... 28
INSTALLATION ................................................ ... 29
INSPECTION AFTER INSTALLATION ............. ... 29
SERVICE DATA AND SPECIFICATIONS (SDS) ... ... 30
Standard and Limit ............................................... ... 30
ENGINE COOLANT CAPACITY (APPROXI-
MATE) ............................................................... ... 30
RADIATOR ....................................................... ... 30
THERMOSTAT ................................................. ... 30

PRECAUTIONS CO-3
[VQ35DE]
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Revision: 2005 July 2005 FX
[VQ35DE]PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
ABS00B4K
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 SRS 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 per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS 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
harness connectors.
Precautions for Liquid GasketABS00B4L
REMOVAL OF LIQUID GASKET SEALING

After removing mounting nuts and bolts, separate the mating
surface using the seal cutter [SST] and remove old liquid gasket
sealing.
CAUTION:
Be careful not to damage the mating surfaces.

Tap the seal cutter to insert it, and then slide it by tapping on the
side as shown in the figure.

In areas where seal cutter is difficult to use, use a plastic ham-
mer to lightly tap the parts, to remove it.
CAUTION:
If for some unavoidable reason tool such as a screwdriver
is used, be careful not to damage the mating surfaces.
LIQUID GASKET APPLICATION PROCEDURE
1. Using a scraper, remove old liquid gasket adhering to the liquid
gasket application surface and the mating surface.

Remove liquid gasket completely from the groove of the liquid
gasket application surface, mounting bolts, and bolt holes.
2. Wipe the liquid gasket application surface and the mating sur- face with white gasoline (lighting and heating use) to remove
adhering moisture, grease and foreign materials.
PBIC0002E
PBIC0003E

DTC P0300 - P0306 MULTIPLE CYLINDER MISFIRE, NO. 1 - 6 CYLINDER MIS- FIRE
EC-291
[VQ35DE]
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Revision: 2005 July 2005 FX
8. CHECK SPARK PLUG
Check the initial spark plug for fouling, etc.
OK or NG
OK >> Replace spark plug(s) with standard type one(s). For spark plug type, refer to MA-20, "
Changing Spark Plugs
(Platinum-Tipped Type)" .
NG >> 1. Repair or clean spark plug.
2. GO TO 9.
9. CHECK FUNCTION OF IGNITION COIL-III
1. Reconnect the initial spark plugs.
2. Crank engine for about 3 seconds, and recheck whether spark is generated between the spark plug and the grounded portion.
OK or NG
OK >> INSPECTION END
NG >> Replace spark plug(s) with standard type one(s). For spark plug type, refer to MA-20, "
Changing
Spark Plugs (Platinum-Tipped Type)" .
10. CHECK COMPRESSION PRESSURE
Check compression pressure. Refer to EM-100, "
CHECKING COMPRESSION PRESSURE" .
OK or NG
OK >> GO TO 11.
NG >> Check pistons, piston rings, valves, valve seats and cylinder head gaskets.
11 . CHECK FUEL PRESSURE
1. Install all removed parts.
2. Release fuel pressure to zero. Refer to EC-99, "
FUEL PRESSURE RELEASE" .
3. Install fuel pressure gauge and check fuel pressure. Refer to EC-99, "
FUEL PRESSURE CHECK" .
OK or NG
OK >> GO TO 13.
NG >> GO TO 12.
SEF156I
Spark should be generated.
Standard: 1,275 kPa (13.0 kg/cm
2 , 185 psi)/300 rpm
Minimum: 981 kPa (10.0 kg/cm
2 , 142 psi)/300 rpm
Difference between each
cylinder: 98 kPa (1.0 kg/cm
2 , 14 psi)/300 rpm
At idle: Approximately 350 kPa (3.57 kg/cm
2 , 51 psi)

EC-1028
[VK45DE]
DTC P0300 - P0308 MULTIPLE CYLINDER MISFIRE, NO. 1 - 8 CYLINDER MIS- FIRE
Revision: 2005 July 2005 FX
8. CHECK SPARK PLUG
Check the initial spark plug for fouling, etc.
OK or NG
OK >> Replace spark plug(s) with standard type one(s). For spark plug type, refer to EM-190
.
NG >> 1. Repair or clean spark plug.
2. GO TO 9.
9. CHECK FUNCTION OF IGNITION COIL-III
1. Reconnect the initial spark plugs.
2. Crank engine for about three seconds, and recheck whether spark is generated between the spark plug and the grounded portion.
OK or NG
OK >> INSPECTION END
NG >> Replace spark plug(s) with standard type one(s). For spark plug type, refer to EM-190
.
10. CHECK COMPRESSION PRESSURE
Check compression pressure. Refer to EM-229, "
CHECKING COMPRESSION PRESSURE" ,.
OK or NG
OK >> GO TO 11.
NG >> Check pistons, piston rings, valves, valve seats and cylinder head gaskets.
11 . CHECK FUEL PRESSURE
1. Install all removed parts.
2. Release fuel pressure to zero. Refer to EC-789, "
FUEL PRESSURE RELEASE" .
3. Install fuel pressure gauge and check fuel pressure. Refer to EC-789, "
FUEL PRESSURE CHECK" .
OK or NG
OK >> GO TO 13.
NG >> GO TO 12.
SEF156I
Spark should be generated.
Standard: 1,320 kPa (13.5 kg/cm
2 , 191 psi)/300 rpm
Minimum: 1,130 kPa (11.5 kg/cm
2 , 164 psi)/300 rpm
Difference between each
cylinder: 98 kPa (1.0 kg/cm
2 , 14 psi)/300 rpm
At idle: Approx. 350 kPa (3.57 kg/cm
2 , 51 psi)

EM-3
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EM A
Revision: 2005 July 2005 FX
ANCE ...............................................................
. 146
MAIN BEARING OIL CLEARANCE ................. . 147
MAIN BEARING CRUSH HEIGHT ................... . 148
CONNECTING ROD BEARING CRUSH
HEIGHT ............................................................ . 148
MAIN BEARING CAP BOLT OUTER DIAMETER . 148
CONNECTING ROD BOLT OUTER DIAMETER . 149
DRIVE PLATE .................................................. . 149
OIL JET ............................................................ . 149
OIL JET RELIEF VALVE .................................. . 149
SERVICE DATA AND SPECIFICATIONS (SDS) ... . 150
Standard and Limit .............................................. . 150
GENERAL SPECIFICATIONS ......................... . 150
DRIVE BELT .................................................... . 151
INTAKE MANIFOLD COLLECTOR, INTAKE
MANIFOLD AND EXHAUST MANIFOLD ........ . 151
SPARK PLUG .................................................. . 151
CAMSHAFT AND CAMSHAFT BEARING ....... . 152
CYLINDER HEAD ............................................ . 154
CYLINDER BLOCK .......................................... . 157
PISTON, PISTON RING AND PISTON PIN ..... . 158
CONNECTING ROD ........................................ . 159
CRANKSHAFT ................................................. . 160
MAIN BEARING ............................................... . 161
CONNECTING ROD BEARING ....................... . 162
VK45DE
PRECAUTIONS ..................................................... . 163
Precautions Necessary for Steering Wheel Rotation
After Battery Disconnect ..................................... . 163
OPERATION PROCEDURE ............................ . 163
Precautions for Drain Engine Coolant and Engine
Oil ........................................................................ . 163
Precautions for Disconnecting Fuel Piping ......... . 163
Precautions for Removal and Disassembly ........ . 163
Precautions for Inspection, Repair and Replace-
ment .................................................................... . 163
Precautions for Assembly and Installation .......... . 163
Parts Requiring Angle Tightening ........................ . 164
Precautions for Liquid Gasket ............................. . 164
REMOVAL OF LIQUID GASKET SEALING ..... . 164
LIQUID GASKET APPLICATION PROCEDURE . 164
PREPARATION ...................................................... . 166
Special Service Tools .......................................... . 166
Commercial Service Tools ................................... . 168
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING ........................................... . 170
NVH Troubleshooting — Engine Noise ............... . 170
Use the Chart Below to Help You Find the Cause
of the Symptom. .................................................. . 171
ENGINE ROOM COVER ....................................... . 172
Components ........................................................ . 172
Removal and Installation ..................................... . 172
REMOVAL ........................................................ . 172
INSTALLATION ................................................ . 172
DRIVE BELTS ........................................................ . 173
Components ........................................................ . 173 Checking Drive Belts ...........................................
.173
Tension Adjustment ............................................. .173
Removal and Installation ..................................... .173
REMOVAL ........................................................ .173
INSTALLATION ................................................ .174
Components ........................................................ .175
Drive Belt Auto Tensioner and Idler Pulley .......... .175
REMOVAL ........................................................ .175
INSTALLATION ................................................ .175
AIR CLEANER AND AIR DUCT ............................ .176
Components ........................................................ .176
Removal and Installation ..................................... .176
REMOVAL ........................................................ .176
INSPECTION AFTER REMOVAL .................... .177
INSTALLATION ................................................ .177
Changing Air Cleaner Filter ................................. .177
REMOVAL ........................................................ .177
INSTALLATION ................................................ .177
INTAKE MANIFOLD .............................................. .178
Components ........................................................ .178
Removal and Installation ..................................... .179
REMOVAL ........................................................ .179
INSPECTION AFTER REMOVAL .................... .180
INSTALLATION ................................................ .180
INSPECTION AFTER INSTALLATION ............. .181
EXHAUST MANIFOLD AND THREE WAY CATA-
LYST ....................................................................... .182
Components ........................................................ .182
Removal and Installation ..................................... .182
REMOVAL ........................................................ .182
INSPECTION AFTER REMOVAL .................... .184
INSTALLATION ................................................ .184
OIL PAN AND OIL STRAINER .............................. .185
Components ........................................................ .185
Removal and Installation ..................................... .185
REMOVAL ........................................................ .185
INSPECTION AFTER REMOVAL .................... .187
INSTALLATION ................................................ .187
INSPECTION AFTER INSTALLATION ............. .188
IGNITION COIL ...................................................... .189
Components ........................................................ .189
Removal and Installation ..................................... .189
REMOVAL ........................................................ .189
INSTALLATION ................................................ .189
SPARK PLUG (PLATINUM-TIPPED TYPE) .......... .190
Components ........................................................ .190
Removal and Installation ..................................... .190
REMOVAL ........................................................ .190
INSPECTION AFTER REMOVAL .................... .190
INSTALLATION ................................................ .191
FUEL INJECTOR AND FUEL TUBE ..................... .192
Components ........................................................ .192
Removal and Installation ..................................... .192
REMOVAL ........................................................ .192
INSTALLATION ................................................ .194
INSPECTION AFTER INSTALLATION ............. .196