ignition INFINITI G35 2003 Workshop Manual

sand or mud, or for maximum engine braking
on steep downhill grades.
O Remember not to drive at high speeds for
extended periods of time in lower than M
4
range. This reduces the fuel economy.
O When shifting up, move the selector lever to
the + (up) side. (Shifts to higher range.)
O When shifting down, move the selector
lever to the þ (down) side. (Shifts to lower
range.)
O Moving the selector lever to the same side
twice will shift the ranges in succession.
However, if this motion is rapidly done, the
second shifting may not be completed prop-
erly.
O In the manual shift mode, the transmis-
sion automatically shifts down to 1st
gear before the vehicle comes to a stop.
When accelerating again, it is necessary
to shift up to the desired range.
O When canceling the manual shift mode,
return the selector lever to the D position.
The transmission returns to the normal
driving mode.
O In the manual shift mode, the transmis-
sion may not shift to the selected gear.
This helps maintain driving performance and reduces the chance of vehicle dam-
age or loss of control.
Accelerator downshift
Ð In D position Ð For passing or hill climbing, fully depress the
accelerator pedal to the floor. This shifts the
transmission down into the lower gear, de-
pending on the vehicle speed.
Fail-safe When the fail-safe operation occurs, the next
time the key is turned to the ON position, the
light will blink for approximately 8 sec-
onds after coming on for 2 seconds. While the
vehicle can be driven under these circum-
stances please note that the gears in the
automatic transmission will be locked in 4th
gear.
If the vehicle is driven under extreme con-
ditions, such as excessive wheel spinning
and subsequent hard braking, the fail-safe
system may be activated. This will occur
even if all electrical circuits are functioning
properly. In this case, turn the ignition key
OFF and wait for 3 seconds. Then turn the
key back to the ON position. The vehicle
should return to its normal operating con-
dition. If it does not return to its normal
operating condition, have your INFINITI re- tailer check the transmission and repair if
necessary.
Starting and driving
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O HEADED UPHILL WITH CURB:
j 2
Turn the wheels away from the curb and
move the vehicle back until the curb side
wheel gently touches the curb.
O HEADED UPHILL OR DOWNHILL, NO
CURB:
j 3
Turn the wheels toward the side of the road
so the vehicle will move away from the
center of the road if it moves.
4. Turn the ignition key to the LOCK position
and remove the key. The power assisted steering is designed to
use a hydraulic pump, driven by the engine, to
assist steering.
If the engine stops or the drive belt breaks, you
will still have control of the vehicle. However,
much greater steering effort is needed, espe-
cially in sharp turns or at low speeds.
WARNING If the engine is not running or is turned
off while driving, the power assist for the
steering will not work. Steering will be
much harder to operate. BRAKING PRECAUTIONS The brake system has two separate hydraulic
circuits. If one circuit malfunctions, you will still
have braking at two wheels.
Vacuum assisted brake
The brake booster aids braking by using en-
gine vacuum. If the engine stops, you can stop
the vehicle by depressing the brake pedal.
However, greater foot pressure on the brake
pedal will be required to stop the vehicle and
the stopping distance will be longer.
Wet brakes
When the vehicle is washed or driven through
water, the brakes may get wet. As a result,
your braking distance will be longer and the
vehicle may pull to one side during braking.
To dry brakes, drive the vehicle at a safe
speed while lightly pressing the brake pedal to
heat-up the brakes. Do this until the brakes
return to normal. Avoid driving the vehicle at
high speeds until the brakes function correctly.
Using the brakes
Avoid resting your foot on the brake pedal
while driving. This overheats the brakes, in-
creases wear on the brake linings and pads,
and reduces gas mileage.POWER STEERING BRAKE SYSTEM
Starting and driving
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CAUTIONO Never tow automatic transmission
models with the rear wheels on the ground or four wheels on the ground
(forward or backward) as this may
cause serious and expensive damage
to the transmission.
If it is necessary to tow the vehicle
with the front wheels raised, always
use towing dollies under the rear
wheels.
O When towing rear wheel drive models
with the front wheels on the ground
or on towing dollies:
Turn the ignition key to the OFF posi-
tion, and secure the steering wheel in
a straight ahead position with a rope
or similar device. Never secure the
steering wheel by turning the ignition
key to the LOCK position. This may
damage the steering lock mecha-
nism.
O If you have to tow manual transmis-
sion models with the rear wheels on
the ground or four wheels on the
ground (if you do not use towing
dollies): O Always release the parking brake.
O Move the transmission shift lever
to the N (Neutral) position.
O Observe the following restricted tow-
ing speeds and distances for manual
transmission models only:
O Speed: Below 60 MPH (95 km/h)
O Distance: Less than 500 miles (800
km)
If the speed or distance must necessarily be
greater, remove the propeller shaft before tow-
ing to prevent damage to the transmission.SCE0387
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When performing any inspection or mainte-
nance work on your vehicle, always take care
to prevent serious accidental injury to yourself
or damage to the vehicle. The following are
general precautions which should be closely
observed.
WARNINGO Park the vehicle on a level surface,
apply the parking brake securely and
block the wheels to prevent the ve-
hicle from moving. For a manual
transmission, move the shift lever to
N (Neutral) position. For an automatic
transmission, move the selector lever
to P (Park) position.
O Be sure the ignition key is OFF or
LOCK when performing any parts re-
placement or repairs.
O If you must work with the engine
running, keep your hands, clothing,
hair and tools away from moving
fans, belts and any other moving
parts.
O It is advised to secure or remove any loose clothing and any jewelry, such
as rings, watches, etc. before work-
ing on your vehicle.
O Always wear eye protection when-
ever you work on your vehicle.
O If you must run the engine in an
enclosed space such as a garage, be
sure there is proper ventilation for
exhaust gases to escape.
O Never get under the vehicle while it is
supported only by a jack. If it is nec-
essary to work under the vehicle,
support it with safety stands.
O Keep smoking materials, flame and
sparks away from fuel and the bat-
tery.
O On gasoline engine models with the
Multiport Fuel Injection (MFI) System,
the fuel filter or fuel lines should be
serviced by an INFINITI retailer be-
cause the fuel lines are under high
pressure even when the engine is off. CAUTION O Do not work under the hood while the
engine is hot. Turn off the engine and
wait until it cools down.
O Never connect or disconnect either
the battery or any transistorized com-
ponent connector while the ignition
key is on.
O Never leave any engine or automatic
transmission related component har-
ness connector disconnected while
the ignition key is on.
O Avoid direct contact with used engine
oil and coolant. Improperly disposed
engine oil, engine coolant and/or
other vehicle fluids can hurt the envi-
ronment. Always conform to local
regulations for disposal of vehicle
fluid.
This ª8. Do-it-yourselfº section gives instruc-
tions regarding only those items which are
relatively easy for an owner to perform.
A genuine INFINITI Service Manual is alsoMAINTENANCE PRECAUTIONS
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Check the fluid level in each cell. It should be
between the MAX and MIN lines.
If it is necessary to add fluid, add only distilled
water to bring the level to the indicator in each
filler opening. Do not overfill.
Vehicles operated in high temperatures or
under severe conditions require frequent
checks of the battery fluid level.
1. Remove the cell plugs.
2. Add distilled water up to the MAX level.
3. Tighten cell plugs. JUMP STARTING If jump starting is necessary, see ªJump start-
ingº in the ª6. In case of emergencyº section. If
the engine does not start by jump starting, the
battery may have to be replaced. Contact your
INFINITI retailer. 1. Power steering fluid pump
2. Fan
3. Alternator
4. Crankshaft pulley
5. Air conditioner compressor
. : Tension checking points
WARNING Be sure the ignition key is in the OFF or
LOCK position. The engine could rotateDI0137M SDI1480 SDI1389
DRIVE BELTS
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unexpectedly.
1. Visually inspect each belt for signs of un-
usual wear, cuts, fraying, oil adhesion or
looseness. If the belt is in poor condition or
loose, have it replaced or adjusted by your
INFINITI retailer.
2. Have the belts checked regularly for condi-
tion and tension in accordance with the
maintenance schedule in this manual.
WARNING Be sure the engine and ignition switch
are off and that the parking brake is
engaged securely.
CAUTION Be sure to use the correct socket to
remove the spark plugs. An incorrect
socket can damage the spark plugs.
REPLACING SPARK PLUGS If replacement is required, see your INFINITI
retailer for servicing.
Platinum-tipped spark plugs It is not necessary to replace the platinum-
tipped spark plugs as frequently as the con-
ventional type spark plugs since they will last
much longer. Follow the maintenance sched-
ule but, do not reuse them by cleaning or
regapping.
Always replace with recommended
platinum-tipped spark plugs. SDI0145
SPARK PLUGS
Do-it-yourself
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CAUTIONNever use a fuse of higher amperage
rating than that specified on the fuse
box cover. This could damage the elec-
trical system or cause a fire.
ENGINE COMPARTMENT If any electrical equipment does not operate,
check for an open fuse.
1. Be sure the ignition key and headlight
switch are OFF.
2. Open the engine hood and remove the
cover on the battery and the fuse/fusible
link holder.
3. Remove the fuse/fusible link holder cover.
4. Remove the fuse with the fuse puller.
5. If the fuse is open, replace it with a new
fuse. 6. If a new fuse also opens, have the electrical
system checked and repaired by your
INFINITI retailer.
Fusible links If any electrical equipment does not operate
and fuses are in good condition, check the
fusible links. If any of these fusible links are
melted, replace only with genuine NISSAN
parts. SDI1392
FUSES
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PASSENGER COMPARTMENT If any electrical equipment does not operate,
check for an open fuse.
1. Be sure the ignition key and the headlight
switch are OFF.
2. Open the fuse box lid.
3. Remove the fuse with the fuse puller.
4. If the fuse is open, replace it with a new
fuse.
5. If a new fuse also opens, have the electrical
system checked and repaired by your
INFINITI retailer. Replace the battery as follows:
1. Open the lid using a suitable tool.
2. Replace the battery with a new one.
Recommended battery: CR2025 or equiva-
lent SDI1393
SPA1374KEYFOB BATTERY
REPLACEMENT
Do-it-yourself
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after using oxygenate-blend fuels, immediately
change to a non-oxygenate fuel or a fuel with
a low blend of MTBE.
Take care not to spill gasoline during refu-
eling. Gasoline containing oxygenates can
cause paint damage.
Aftermarket fuel additives INFINITI does not recommend the use of any
fuel additives (i.e. fuel injector cleaner, octane
booster, intake valve deposit removers, etc.)
which are sold commercially. Many of these
additives intended for gum, varnish or deposit
removal may contain active solvent or similar
ingredients that can be harmful to the fuel
system and engine.
Octane rating tips In most parts of North America, you should use
unleaded gasoline with an octane rating of at
least 87 or 91 AKI (Anti-Knock Index) number.
However, you may use unleaded gasoline with
an octane rating as low as 85 AKI number in
these high altitude areas [over 4,000 ft (1,219
m)] such as: Colorado, Montana, New Mexico,
Utah, Wyoming, northeastern Nevada, south-
ern Idaho, western South Dakota, western
Nebraska, and that part of Texas which is
directly south of New Mexico. Using unleaded gasoline with an octane
rating lower than stated above can cause
persistent, heavy spark knock. (Spark
knock is a metallic rapping noise.) If se-
vere, this can lead to engine damage. If you
detect a persistent heavy spark knock even
when using gasoline of the stated octane
rating, or if you hear steady spark knock
while holding a steady speed on level
roads, have your dealer correct the condi-
tion. Failure to correct the condition is
misuse of the vehicle, for which INFINITI is
not responsible.
Incorrect ignition timing will result in knocking,
after-run or overheating. This in turn may
cause excessive fuel consumption or damage
to the engine. If any of the above symptoms
are encountered, have your vehicle checked at
an INFINITI retailer or other competent service
facility.
However, now and then you may notice
light spark knock for a short time while
accelerating or driving up hills. This is no
cause for concern, because you get the
greatest fuel benefit when there is light
spark knock for a short time under heavy
engine load.
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ENGINE Model VQ35DE
Type Gasoline, 4-cycle
Cylinder arrangement 6-cylinder, V-slanted at 60É
Bore x Stroke in (mm) 3.760 x 3.205 (95.5 x 81.4)
Displacement cu in (cm 3
) 213.45 (3,498)
Firing order 1-2-3-4-5-6*
Idle speed rpm
See the emission control label on
the underside of the hood.Ignition timing (B.T.D.C.) degree/rpm
CO percentage at idle speed [No air] %
Spark plug Standard PLFR5A-11
Service option PLFR4A-11, PLFR6A-11
Spark plug gap (Normal) in (mm) 0.043 (1.1)
Camshaft operation Timing chain The spark ignition system of this vehicle
meets all requirements of the Canadian
Interference-Causing Equipment Regula-
tions. TI0001-A
SPECIFICATIONS
Technical and consumer information
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