pg power INFINITI FX35 2004 Service Manual

PRECAUTIONS
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Revision: 2004 November 2004 FX35/FX45
[VQ35DE]PRECAUTIONSPFP:00001
Precautions Necessary for Steering Wheel Rotation After Battery DisconnectABS00B3I
NOTE:

This Procedure is applied only to models with Intelligent Key system and NVIS/IVIS (NISSAN/INFINITI
VEHICLE IMMOBILIZER SYSTEM - NATS).

Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″LOCK″ position.

Always use CONSULT-II 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 NVIS/IVIS, an electrically controlled steering lock
mechanism 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.
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-II.
Precautions for Drain Engine CoolantABS005ZK
Drain engine coolant when engine is cooled.
Precautions for Disconnecting Fuel PipingABS005ZL

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.
Precautions for Removal and DisassemblyABS005ZM

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 re-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.
Precautions for Inspection, Repair and ReplacementABS005ZN
Before repairing or replacing, thoroughly inspect parts. Inspect new replacement parts in the same way, and
replace if necessary.
Precautions for Assembly and InstallationABS005ZO

Use torque wrench to tighten bolts or nuts to specification.

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PREPARATION
Revision: 2004 November 2004 FX35/FX45
Commercial Service ToolsABS004TU
KV10114400
(J-38365)
Heated oxygen sensor wrenchLoosening or tightening heated oxygen
sensor
a: 22 mm (0.87 in)
KV10117700
(J-44716)
Ring gear stopperRemoving and installing crankshaft pulley
10006 31U00
(—)
Engine rear slingerRemoving and installing oil pan (upper) for on
vehicle service
—
(J-45488)
Quick connector releaseRemoving fuel tube quick connectors in
engine room (Right member side) Tool number
(Kent-Moore No.)
Tool nameDescription
NT636
NT822
SBIA0530E
PBIC0198E
(Kent-Moore No.)
Tool nameDescription
Power toolLoosening bolts and nuts
Manual lift table caddy Removing and installing engine
PBIC0190E
ZZA1210D

DRIVE BELTS
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Revision: 2004 November 2004 FX35/FX45
DRIVE BELTSPFP:02117
Checking Drive BeltsABS004TX
WARNING:
Be sure to perform when engine is stopped.
1. Inspect belts for cracks, fraying, wear and oil. If necessary,
replace.
2. Inspect drive belt deflection or tension at a point on belt midway
between pulleys.

Inspection should be done only when engine is cold, or over
30 minutes after engine is stopped.

Measure belt tension with belt tension gauge (Commercial
Service Tool: BT3373-F or equivalent) at points marked
shown in the figure.

When measuring deflection, apply 98 N (10 kg, 22 lb) at the
marked point.

Adjust if belt deflection exceeds the limit or if belt tension is not within specifications.
CAUTION:

When checking belt deflection or tension immediately after installation, first adjust it to the
specified value. Then, after turning crankshaft two turns or more, re-adjust to the specified
value to avoid variation in deflection between pulleys.

Tighten idler pulley lock nut by hand and measure deflection or tension without looseness.
Belt Deflection and Tension
*: If belt tension gauge cannot be installed at check points shown, check drive belt tension at different location on belt.
Tension AdjustmentABS004TY
CAUTION:

When belt is replaced with a new one, adjust it to value for “New belt” to accommodate for insuffi-
cient adaptability with pulley grooves.

When deflection or tension of belt being used exceeds “Limit”, adjust it to value for “After adjust-
ment of used belt”.

When checking belt deflection or tension immediately after installation, first adjust it to the speci-
fied value. Then, after turning crankshaft two turns or more, re-adjust to the specified value to
avoid variation in deflection between pulleys.

When installing belt, make sure that it is correctly engaged with pulley grooves.

Keep engine oil, working fluid and engine coolant away from belt and pulley grooves.

Do not twist or bend belt excessively.
KBIA1731J
ItemsDeflection adjustment Unit: mm (in) Tension adjustment* Unit: N (kg, lb)
Used belt
New beltUsed belt
New belt
Limit After adjustment Limit After adjustment
Alternator and
power steering
oil pump belt7 (0.28)4 - 5
(0.16 - 0.20)3.5 - 4.5
(0.138 - 0.177)294 (30, 66)730 - 818
(74.5 - 83.5,
164 - 184)838 - 926
(85.5 - 94.5,
188 - 208)
Air conditioner
compressor belt12 (0.47)9 - 10
(0.35 - 0.39)8 - 9
(0.31 - 0.35)196 (20, 44)348 - 436
(35.5 - 44.5,
78 - 98)470 - 559
( 4 8 - 5 7 ,
106 - 126)
Applied pushing
force98 N (10 kg, 22 lb) —
PortionBelt tightening method for adjustment
Alternator and power steering oil pump belt Adjusting bolt on idler pulley
Air conditioner compressor belt Adjusting bolt on idler pulley

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DRIVE BELTS
Revision: 2004 November 2004 FX35/FX45
ALTERNATOR AND POWER STEERING OIL PUMP BELT
1. Remove front engine undercover with power tool.
2. Loosen idler pulley lock nut (A) and adjust tension by turning
adjusting bolt (B).

For specified belt tension, refer to EM-15, "Checking Drive
Belts" .
3. Tighten nut (A).
AIR CONDITIONER COMPRESSOR BELT
1. Remove front engine undercover with power tool.
2. Loosen idler pulley lock nut (C) and adjust tension by turning adjusting bolt (D).

For specified belt tension, refer to EM-15, "Checking Drive Belts" .
3. Tighten nut (C).
Removal and InstallationABS004TZ
REMOVAL
1. Remove front engine undercover with power tool.
2. Remove alternator and power steering oil pump belt. Refer to EM-16, "
ALTERNATOR AND POWER
STEERING OIL PUMP BELT" .
3. Remove air conditioner compressor belt. Refer to EM-16, "
AIR CONDITIONER COMPRESSOR BELT" .
CAUTION:
Grease is applied to idler pulley adjusting bolt. Be careful to keep grease away from belt.
INSTALLATION
1. Install belts to pulley in reverse order of removal.
CAUTION:

Make sure belt is correctly engaged with pulley groove.

Check for engine oil and engine coolant are not adhered to belt and each pulley grooves.
2. Adjust belt tension. Refer to EM-15, "
Tension Adjustment" .
3. Tighten each adjusting bolt and nut to the specified torque.
4. Make sure that tension of each belt is within the standard. : 34.8 N·m (3.5 kg-m, 26 ft-lb)
SBIA0532E
: 34.8 N·m (3.5 kg-m, 26 ft-lb)

AIR CLEANER AND AIR DUCT
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Revision: 2004 November 2004 FX35/FX45
AIR CLEANER AND AIR DUCTPFP:16500
Removal and InstallationABS004U0
REMOVAL
1. Remove engine cover with power tool. Refer to EM-19, "INTAKE MANIFOLD COLLECTOR" .

This work is unnecessary when parts located forward of mass air flow sensor are removed/installed.
2. Remove air duct (inlet).
3. Disconnect mass air flow sensor harness connector.
4. Disconnect PCV hose.
5. Remove air cleaner case/mass air flow sensor assembly and air duct/resonator assembly disconnecting
their joints.

Add marks as necessary for easier installation.
6. Remove mass air flow sensor from air cleaner case.
CAUTION:
Handle mass air flow sensor with care.

Do not shock it.

Do not disassemble it.

Do not touch its sensor.
7. Remove resonator in fender, lifting left fender protector.
INSTALLATION
Note to the following, and install in the reverse order of removal.
1. Air hose 2. PCV hose 3. Air duct
4. Air hose 5. Power duct 6. Clip
7. Air duct (inlet) 8. Resonator 9. Grommet
10. Air cleaner case 11. Air cleaner filter 12. Air cleaner case
13. O-ring 14. Mass air flow sensor
SBIA0462E

EM-18
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AIR CLEANER AND AIR DUCT
Revision: 2004 November 2004 FX35/FX45

Align marks. Attach each joint. Screw clamps firmly.

To position air cleaner case, refer to EM-18, "Changing Air Cleaner Filter" .
Changing Air Cleaner FilterABS004U1
INSPECTION
Check status (fouling, damage, etc.) of air cleaner filter at power duct
hole.
REMOVAL
Removal in the order below.
1. Remove air duct (inlet) from air cleaner case.
2. Disconnect harness connector from mass air flow sensor.
3. Loosen clamp bolts of air hose.
4. Remove mounting bolts for air cleaner case. Remove air cleaner
case/mass air flow sensor/air hose assembly.
5. Unclip and open air cleaner case, and remove air cleaner filter.
INSTALLATION
Note to the following, and install in the reverse order of removal.

If grommet at bottom of air cleaner case comes off together with
air cleaner case, fix it to vehicle before installation.

Look at internal bottom face through power duct hole, and posi-
tion air cleaner case with resonator upper end circle and air
cleaner case round hole aligned. Then push air cleaner case
straight down.

At this time, check by hand if protrusion at bottom of air cleaner
case has been inserted into grommet on vehicle side.

Clip power duct with bulge on reverse side of lower end
engaged with air cleaner case.
SBIA0463E
SBIA0464E
KBIA0954E

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INTAKE MANIFOLD COLLECTOR
Revision: 2004 November 2004 FX35/FX45
1. Remove engine cover with power tool.
2. Disconnect water hoses from intake manifold collector (upper), attach blind plug to prevent engine coolant
leakage.
CAUTION:

Perform this step when engine is cold.

Do not spill engine coolant on drive belts.
3. Remove air cleaner case and air duct. Refer to EM-17, "
AIR CLEANER AND AIR DUCT" .
4. Remove electric throttle control actuator as the following:
a. Disconnect harness connector.
b. Loosen bolts in reverse order as shown in the figure.
CAUTION:

Handle carefully to avoid any shock to electric throttle
control actuator.

Do not disassemble.
5. Remove fuel sub-tube mounting bolt to disconnect from rear of intake manifold collector (lower). Refer to
EM-45, "
FUEL INJECTOR AND FUEL TUBE" .
6. Disconnect vacuum hose and water hose from intake manifold collector (upper).
7. Remove EVAP canister purge volume control solenoid valve bracket mounting bolt from intake manifold
collector (upper).
SBIA0486E
KBIA0957E

INTAKE MANIFOLD COLLECTOR
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Revision: 2004 November 2004 FX35/FX45
8. Loosen bolts in reverse order as shown in the figure to remove
intake manifold collector (upper) with power tool.
9. Remove PCV hose [between intake manifold collector and rocker cover (right bank)].
10. Loosen bolts in reverse order as shown in the figure, and
remove intake manifold collector cover, gasket, intake manifold
collector (lower) and gasket with power tool.
CAUTION:
Cover engine openings to avoid entry of foreign materials.
INSPECTION AFTER REMOVAL
Surface Distortion

Check the surface distortion of both the intake manifold collector
(upper and lower) mating surfaces with straightedge and feeler
gauge.

If it exceeds the limit, replace intake manifold collector (upper
and/or lower).
PBIC0773E
PBIC0774E
Limit : 0.1 mm (0.004 in)
PBIC0775E

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INTAKE MANIFOLD
Revision: 2004 November 2004 FX35/FX45
INTAKE MANIFOLDPFP:14003
Removal and InstallationABS004U3
REMOVAL
1. Release fuel pressure. Refer to EC-51, "FUEL PRESSURE RELEASE" .
2. Remove intake manifold collector (upper and lower). Refer to EM-19, "
INTAKE MANIFOLD COLLECTOR"
.
3. Remove fuel tube and fuel injector assembly. Refer to EM-45, "
FUEL INJECTOR AND FUEL TUBE" .
4. Loosen bolts and nuts in reverse order of illustration to remove
intake manifold with power tool.
5. Remove intake manifold gaskets.
CAUTION:
Cover engine openings to avoid entry of foreign materials.
INSPECTION AFTER REMOVAL
Surface Distortion

Check the surface distortion of the intake manifold mating sur-
face with straightedge and feeler gauge.

If it exceeds the limit, replace intake manifold.
1. Harness bracket 2. Intake manifold 3. Gasket
SBIA0487E
PBIC0778E
Limit : 0.1 mm (0.04 in)
PBIC0870E

EM-26
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EXHAUST MANIFOLD AND THREE WAY CATALYST
Revision: 2004 November 2004 FX35/FX45
EXHAUST MANIFOLD AND THREE WAY CATALYSTPFP:14004
Removal and InstallationABS004U4
REMOVAL
WARNING:
Perform the work when the exhaust and cooling system have completely cooled down.
1. Remove engine cover with power tool. Refer to EM-19, "
INTAKE MANIFOLD COLLECTOR" .
2. Remove air cleaner case and air duct. Refer to EM-17, "
AIR CLEANER AND AIR DUCT" .
3. Remove front and rear engine undercover and front cross bar with power tool.
4. Disconnect heated oxygen sensors 2 (bank 1 and bank 2) harness connectors.
5. Using heated oxygen sensor wrench (SST), remove heated oxy-
gen sensors 2 (bank 1 and bank 2).
CAUTION:

Be careful not to damage heated oxygen sensor.

Discard any heated oxygen sensor which has been
dropped from a height of more than 0.5 m (19.7 in) onto a
hard surface such as a concrete floor; replace with a new
sensor.
1. Heated oxygen sensor 2 (bank 1) 2. Three way catalyst (right bank) 3. Gasket
4. heated oxygen sensor 1 (bank 1) 5. Exhaust manifold cover (right bank) 6. Exhaust manifold (right bank)
7. Exhaust manifold (left bank) 8. Exhaust manifold cover (left bank) 9. Three way catalyst (left bank)
10. heated oxygen sensor 1 (bank 2) 11. Heated oxygen sensor 2 (bank 2)
SBIA0583E
KBIA1740E