2007 INFINITI FX35 fuel tank removal

FL-4
FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY
Revision: 2006 July 2007 FX35/FX45
FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLYPFP:17042
ComponentsNBS004II
Removal and InstallationNBS006SU
REMOVAL
WARNING:
Read “General Precautions” when working on the fuel system. Refer to FL-3, "
General Precautions" .
1. Check fuel level on fuel gauge. If fuel gauge indicates more than the level as shown in the figure (full or almost full), drain fuel
from fuel tank until fuel gauge indicates level as shown in the fig-
ure or below.
NOTE:
Because fuel will be spilled when removing main and sub fuel
level sensor units for the top of the fuel is above the main and
sub fuel level sensor units installation surface.

As a guide, fuel level becomes the position as shown in the
figure or below when approximately 20 (5-1/4 US gal, 4-3/8
Imp gal) of fuel are drained from fuel tank.

In a case that fuel pump does not operate, perform the follow-
ing procedure.
a. Insert hose of less than 25 mm (0.98 in) in diameter into fuel filler tube through fuel filler opening to draw fuel from fuel filler tube.
b. Disconnect fuel filler hose from fuel filler tube. Refer to FL-10, "
FUEL TANK" .
c. Insert fuel tube into fuel tank through fuel filler hose to draw fuel from fuel tank.
2. Release the fuel pressure from the fuel lines. Refer to EC-85, "
FUEL PRESSURE RELEASE" (VQ35DE)
or EC-747, "
FUEL PRESSURE RELEASE" (VK45DE).
1. Retainer 2. Main fuel level sensor unit, fuel filter -
and fuel pump assembly 3. O-ring
4. Sub fuel level sensor unit
PBIC1585E
PBIC1575E

FL-10
FUEL TANK
Revision: 2006 July 2007 FX35/FX45
FUEL TANKPFP:17202
ComponentsNBS004IK
Removal and InstallationNBS005S4
REMOVAL
WARNING:
Be sure to read “General Precautions” when working on the fuel system. Refer to FL-3, "
General Pre-
cautions" .

Drain fuel from fuel tank if necessary. Refer to FL-4, "REMOVAL" .

Perform work on level place.
1. Perform steps 2 to 7 of “REMOVAL” in “ FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY” on main and sub fuel level sensor units. Refer to FL-4, "
REMOVAL" .
2. Remove tunnel stay. Refer to RSU-5, "
REAR SUSPENSION ASSEMBLY" .
3. Remove exhaust front tube, center muffler and main muffler. Refer to EX-3, "
EXHAUST SYSTEM" .
4. Remove insulator.
5. Remove propeller shaft. Refer to PR-7, "
REAR PROPELLER SHAFT" .
6. Remove parking rear brake cables. Refer to PB-4, "
PARKING BRAKE CONTROL" .
7. Compress coil spring and remove coil spring.
8. Remove rear suspension assembly.
9. Remove fuel tank protector.
1. Grommet 2. Fuel filler cap 3. Clip
4. Fuel filler tube protector 5. Fuel tank mounting band 6. Fuel tank protector
7. Insulator 8. Fuel tank 9. Vent tube
10. Vent hose 11. EVAP hose 12. Vent hose
13. Fuel filler hose 14. Fuel filler tube
PBIC1580E

FUEL TANK FL-11
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Revision: 2006 July 2007 FX35/FX45
10. Disconnect fuel filler hose, vent hose and EVAP hoses at fuel
tank side.
11. Support the lower part of fuel tank with transmission jack. CAUTION:
Support the position that fuel tank mounting bands do not
engage.
12. Remove fuel tank mounting bands.
13. Supporting with hands, descend transmission jack carefully, and remove fuel tank. CAUTION:

Make sure that all connection points have been disconnected.

Confirm there is no interference with vehicle.
14. Remove fuel filler tube protector and fuel filler tube, if necessary.
INSTALLATION
Note the following, and install in the reverse order of removal.

Surely clamp fuel hoses and insert hose to the length below.

Be sure hose clamp is not placed on swelled area of fuel tube.

Tighten fuel hose clamp so that the distance between its lugs becomes to the following.

To connect quick connector, refer to FL-7, "Quick Connector" .
INSPECTION AFTER INSTALLATION
Use the following procedure to check for fuel leaks.
1. Turn ignition switch “ON” (with engine stopped), and check connections for leakage by applying fuel pres- sure to fuel piping.
2. Start engine and rev it up and make sure there are no fuel leaks at the fuel system tube and hose connec- tions.
PBIC1581E
PBIC0878E
Fuel filler hose : 35 mm (1.38 in)
The other hoses : 25 mm (0.98 in)
Fuel tank side : 8 - 12 mm (0.31 - 0.47 in)
Fuel filler tube side : 5.7 - 9.7 mm (0.224 - 0.382 in)

PRECAUTIONS GI-7
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Revision: 2006 July 2007 FX35/FX45
Precautions for Fuel (Unleaded Premium Gasoline Required)NAS00063
Use unleaded premium gasoline with an octane rating of at least 91 AKI (Anti-Knock Index) number (Research
octane number 96).
If unleaded premium gasoline is not available, unleaded regular gasoline with an octane rating of at least 87
AKI number (Research octane number 91) can be used, but only under the following precautions:

have the fuel tank filled only partially with unleaded regular gasoline, and fill up with unleaded premium
gasoline as soon as possible.

avoid full throttle driving and abrupt acceleration.
However, for maximum vehicle performance, the use of unleaded premium gasoline is recommended.
CAUTION:
Do not use leaded gasoline. Using leaded gasoline will damage the three way catalyst. Do not use E-85
fuel (85% fuel ethanol, 15% unleaded gasoline) unless the vehicle is specifically designed for E-85 fuel
(i.e. Flexible Fuel Vehicle - FFV models). Using a fuel other than that specified could adversely affect
the emission control devices and systems, and could also affect the warranty coverage validity.
Precautions for Multiport Fuel Injection System or Engine Control SystemNAS00064

Before connecting or disconnecting any harness connector for
the multiport fuel injection system or ECM:
Turn ignition switch to “OFF” position.
Disconnect negative battery terminal.
Otherwise, there may be damage to ECM.

Before disconnecting pressurized fuel line from fuel pump to
injectors, be sure to release fuel pressure.

Be careful not to jar components such as ECM and mass air
flow sensor.
Precautions for HosesNAS00065
HOSE REMOVAL AND INSTALLATION

To prevent damage to rubber hose, do not pry off rubber hose
with tapered tool or screwdriver.

To reinstall the rubber hose securely, make sure that hose inser-
tion length and orientation is correct. (If tube is equipped with
hose stopper, insert rubber hose into tube until it butts up
against hose stopper.)
SGI787
SMA019D
SMA020D

IDX-4
ALPHABETICAL INDEX
Electrical units location ...................................... PG-67
Electronic ignition (EI) system ............. EC-32, EC-694
Engine control circuit diagram ......................... EC-107
Engine control component parts location ......... EC-100
Engine control module (ECM) .......... EC-480, EC-1148
Engine control system diagram ........... EC-29, EC-691
Engine coolant temperature sensor (ECTS) ... EC-209,
EC-221
, EC-880, EC-893
Engine coolant(VK45DE) .................................. CO-38
Engine coolant(VQ35DE) ................................. CO-11
Engine fail-safe system ...................................... EC-95
Engine oil filter replacement ............................. MA-26
Engine oil filter replacement(VQ35DE) ............. MA-19
Engine oil precautions .......................................... GI-8
Engine oil replacement(VQ35DE) ..................... MA-18
Engine oil(VK45DE) ........................................... LU-25
Engine oil(VQ35DE) ............................................ LU-7
Engine removal(VK45DE) ............................... EM-243
Engine removal(VQ35DE) .............................. EM-113
Engine room cover(VK45DE) ......................... EM-173
ETC1 - Wiring diagram .................... EC-564, EC-1245
ETC2 - Wiring diagram .................... EC-559, EC-1240
ETC3 - Wiring diagram .................... EC-570, EC-1252
EVAP canister ...................................... EC-41, EC-703
EVAP canister purge volume control solenoid valve ....
EC-396
, EC-404, EC-1065, EC-1073
EVAP canister vent control valve ...... EC-411, EC-418,
EC-1080
, EC-1087
EVAP control system (small leak) diagnosis .. EC-387,
EC-449
, EC-1056, EC-1118
EVAP control system pressure sensor ........... EC-424,
EC-427
, EC-433, EC-1093, EC-1096, EC-1102
EVAP control system purge flow monitoring diagnosis
EC-382
, EC-1051
EVAP vapor lines inspection ................. MA-21, MA-28
Evaporative emission (EVAP) system . EC-38, EC-700
Evaporator ..................................................... ATC-154
Exhaust manifold(VK45DE) ............................ EM-183
Exhaust manifold(VQ35DE) .............................. EM-26
Exhaust system ................................................... EX-3
Exhaust system inspection ..................... EX-3, MA-29
Expansion valve ............................................. ATC-155
F
F/PUMP - Wiring diagram ................ EC-637
, EC-1319
Final drive pre-inspection .................. FFD-20, RFD-19
Final drive removal and installation .. FFD-13, FFD-15,
RFD-16
Floor trim ............................................................. EI-41
Flow charts ......................................................... GI-28
Fluid temperature sensor (A/T) ........................ AT-134
Fluorescent leak detector .............................. ATC-156
Freeze frame data ............................... EC-59, EC-721
Front axle ................................ FAX-4, FAX-10, RAX-5
Front brake solenoid valve ................. AT-150, AT-152
Front bumper ...................................................... EI-14
Front door ............................. BL-148, BL-152, GW-58
Front passenger air bag .................................. SRS-46
Front seat belt ...................................................... SB-4
Front seat belt pre-tensioner ..... SB-2, SRS-3, SRS-52
Front suspension .............................................. FSU-6
FTS - Wiring diagram ....................................... AT-135
FTTS - Wiring diagram .... EC-329, EC-334, EC-1000,
EC-1005
Fuel cut control (at no load high engine speed) EC-33,
EC-695
Fuel filter replacement ......................................... FL-4
Fuel gauge ............................................................ DI-5
Fuel injection system (Bank 1) ......... EC-304, EC-316,
EC-976
, EC-987
Fuel injection system (Bank 2) ......... EC-304, EC-316,
EC-976
, EC-987
Fuel injector ..................................................... EC-629
Fuel injector and fuel tube(VK45DE) .............. EM-194
Fuel injector and fuel tube(VQ35DE) ................ EM-45
Fuel level sensor EC-459, EC-461, EC-463, EC-1127,
EC-1129
, EC-1131
Fuel line inspection .................................. FL-3, MA-25
Fuel line inspection(VQ35DE) .......................... MA-17
Fuel precautions .......................................... GI-6, GI-7
Fuel pressure check ........................... EC-85, EC-747
Fuel pressure release ......................... EC-85, EC-747
Fuel pump ....................................... EC-636, EC-1318
Fuel pump and gauge .......................................... FL-4
Fuel system ......................................................... FL-3
Fuel tank ............................................................ FL-10
Fuel tank temperature sensor .......... EC-327, EC-333,
EC-998
, EC-1004
Fuel tank vacuum relief valve ............. EC-41, EC-703
FUELB1 - Wiring diagram .. EC-306, EC-318, EC-978,
EC-989
FUELB2 - Wiring diagram .. EC-308, EC-320, EC-980,
EC-991
Fuse .................................................................. PG-16
Fuse and fusible link box .................................. PG-81
Fusible link ........................................................ PG-16
G
Gauges ................................................................. DI-5
Generic scan tool (GST) .................................. EC-129
Glass ...................................... GW-11, GW-58, GW-62
Grille - See Exterior ............................................ EI-22
Ground distribution ........................................... PG-29
H
Harness connector ............................................ PG-71
Harness layout .................................................. PG-43
Headlining - See Roof trim .................................. EI-43
Heated oxygen sensor 2 (bank 1) .... EC-269, EC-280,
EC-293
, EC-941, EC-952, EC-965
Heated oxygen sensor 2 (bank 2) .... EC-269, EC-280,
EC-293
, EC-941, EC-952, EC-965
Heated oxygen sensor 2 heater (bank 1) ....... EC-172,
EC-844
Heated oxygen sensor 2 heater (bank 2) ....... EC-172,

ENGINE MAINTENANCE (VQ35DE ENGINE) MA-21
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Revision: 2006 July 2007 FX35/FX45
CAUTION:

Do not drop or shock spark plug.

Do not use a wire brush for cleaning.

If plug tip is covered with carbon, spark plug cleaner may
be used.

Checking and adjusting plug gap is not required between
change intervals.
INSTALLATION
Install in the reverse order of removal.
Checking EVAP Vapor LinesNLS0006B
1. Visually inspect EVAP vapor lines for improper attachment and for cracks, damage, loose connections,
chafing and deterioration.
2. Inspect fuel tank filler cap vacuum relief valve for clogging, sticking, etc. Refer to EC-38, "
EVAPORATIVE EMISSION SYSTEM" .
Cleaner air pressure:
Less than 588 kPa (6 kg/cm
2 , 85 psi)
Cleaning time: Less than 20 seconds
SMA773C
SMA806CA
: 24.5 N·m (2.5 kg-m, 18 ft-lb)

MA-28
ENGINE MAINTENANCE (VK45DE ENGINE)
Revision: 2006 July 2007 FX35/FX45

Do not use wire brush for cleaning.

If plug tip is covered with carbon, spark plug cleaner may
be used.

Checking and adjusting plug gap is not required between
change intervals.
INSTALLATION
Install in the reverse order of removal.
Checking EVAP Vapor LinesNLS0006K
1. Visually inspect EVAP vapor lines for improper attachment and for cracks, damage, loose connections, chafing and deterioration.
2. Inspect fuel tank filler cap vacuum relief valve for clogging, sticking, etc.
Refer to EC-700, "
EVAPORATIVE EMISSION SYSTEM" .
Cleaner air pressure:
Less than 588 kPa (6 kg/cm
2 , 85 psi)
Cleaning time: Less than 20 seconds
SMA773C
SMA806CA
Spark plug:
: 24.6 N·m (2.5 kg-m, 18 ft-lb)