engine INFINITI G35 2003 Service Manual

WARNINGO Do not stop or park the vehicle over
flammable materials such as dry
grass, waste paper or rags. They may
ignite and cause a fire.
O Never leave the engine running while
the vehicle is unattended.
O Never leave children unattended in
the vehicle. 1. Firmly apply the parking brake.
2. Automatic transmission models:
Move the selector lever to the P (Park)
position.
Manual transmission models:
Place the shift lever in the R (Reverse)
position. When parking on an uphill grade,
place the shift lever in the 1 (Low gear)
position. WARNING O Safe parking procedures require that
both the parking brake be set and the
transmission placed into P (Park) for
automatic transmission models or in
an appropriate gear for manual trans-
mission models. Failure to do so
could cause the vehicle to move un-
expectedly or roll away and result in
an accident.
O Make sure the automatic transmis-
sion selector lever has been pushed
as far forward as it can go and cannot
be moved without depressing the
button at the end of the lever.
3. To help prevent the vehicle from rolling into
the street when parked on a sloping drive
way, it is a good practice to turn the wheels
as illustrated.
O HEADED DOWNHILL WITH CURB:
j 1
Turn the wheels into the curb and move the
vehicle forward until the curb side wheel
gently touches the curb. MSD0002
PARKING/PARKING ON HILLS
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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
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To help save the brakes and to prevent the
brakes from overheating, reduce speed and
downshift to a lower gear before going down a
slope or long grade. Overheated brakes may
reduce braking performance and could result
in loss of vehicle control.
WARNINGO While driving on a slippery surface,
be careful when braking, accelerating
or downshifting. Abrupt braking or
accelerating could cause the wheels
to skid and result in an accident.
O If the engine is not running or is
turned off while driving, the power
assist for the brakes will not work.
Braking will be harder.
ANTI-LOCK BRAKE SYSTEM (ABS) The anti-lock brake system controls the brakes
at each wheel so the wheels will not lock when
braking abruptly or when braking on slippery
surfaces. The system detects the rotation
speed at each wheel and varies the brake fluid
pressure to prevent each wheel from locking
and sliding. By preventing wheel lockup, the
system helps the driver maintain steering con- trol and helps to minimize swerving and spin-
ning on slippery surfaces.
Using the system Depress the brake pedal and hold it down.
WARNING Do not pump the brake pedal. Doing so
may result in increased stopping dis-
tances.
Normal operation The anti-lock brake system will not operate at
speeds below 3 to 6 MPH (5 to 10 km/h) to
completely stop the vehicle. (The speeds will
vary according to road conditions.) When the
anti-lock system senses that one or more
wheels are close to locking up, the actuator
(under the hood) rapidly applies and releases
hydraulic pressure (like pumping the brakes
very quickly). While the actuator is working,
you may feel a pulsation in the brake pedal
and hear a noise or vibration from the actuator
under the hood. This is normal and indicates
that the anti-lock system is working properly.
However, the pulsation may indicate that road conditions are hazardous and extra care is
required while driving.
Self-test feature The anti-lock brake system consists of elec-
tronic sensors, electric pumps, and hydraulic
solenoids controlled by a computer. The com-
puter has a built-in diagnostic feature that tests
the system each time you start the engine and
move the vehicle at a low speed in forward or
reverse. When the self-test occurs, you may
hear a clunk noise and/or feel a pulsation in
the brake pedal. This is normal and is not an
indication of any malfunction. If the computer
senses any malfunction, it switches the anti-
lock brake system OFF and turns on the ABS
warning light in the dashboard. The brake
system will then behave normally, but without
anti-lock assistance.
If the light comes on during the self check, or
while you are driving, you should take your
vehicle to your INFINITI retailer for repair at
your earliest convenience.
WARNING The anti-lock brake system is a sophis-
ticated device, but it cannot prevent ac-
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slippery surface. The brake LSD system
brakes the spinning wheel which distributes
the driving power to the other drive wheel. If
the vehicle is operated with the vehicle dynam-
ics control system turned off, all VDC and TCS
functions will be turned off. The brake LSD
system and ABS will still operate with the VDC
system off. If the brake LSD system or the ABS
is activated, the slip indicator light will blink and
you may hear a clunk noise and/or feel a
pulsation in the brake pedal. This is normal.
While the VDC system is operating, you may
feel a pulsation in the brake pedal and hear a
noise or vibration from under the hood. This is
normal and indicates that the VDC system is
working properly.
The computer has a built in diagnostic feature
that tests the system each time you start the
engine and move the vehicle forward or in
reverse at a slow speed. When the self-test
occurs, you may hear a clunk noise and/or feel
a pulsation in the brake pedal. This is normal
and is not an indication of a malfunction.
WARNINGO The vehicle dynamics control system
is designed to help improve driving stability but does not prevent acci-
dents due to abrupt steering opera-
tion at high speeds or by careless or
dangerous driving techniques. Re-
duce vehicle speed and be especially
careful when driving and cornering
on slippery surfaces and always drive
carefully.
O If suspension parts such as shock
absorbers, struts, springs and bush-
ings are not standard equipment or
are extremely deteriorated, the ve-
hicle dynamics control off indicator
light may come on.
O When driving on extremely inclined
surfaces such as higher banked cor-
ners, the vehicle dynamics control
system may not operate properly or
the vehicle dynamics control off indi-
cator light may come on. Do not drive
on these types of roads.
O If the tires other than the recom-
mended ones are used, the vehicle
dynamics control system may not op-
erate properly or the vehicle dynam- ics control off indicator light may
come on.
O The vehicle dynamics control system
is not a substitute for winter tires or
tire chains on a snow covered road.
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FREEING A FROZEN DOOR LOCK To prevent a door lock from freezing, apply
de-icer or glycerin to it through the key hole. If
the lock becomes frozen, heat the key before
inserting it into the key hole.
ANTI-FREEZE In the winter when it is anticipated that the
temperature will drop below 32ÉF (0ÉC), check
anti-freeze to assure proper winter protection.
For additional information, see ªEngine Cool-
ing Systemº in the ª8. Do-it-yourselfº section.
BATTERY If the battery is not fully charged during ex-
tremely cold weather conditions, the battery
fluid may freeze and damage the battery. To
maintain maximum efficiency, the battery
should be checked regularly. For additional
information, see ªBatteryº in the ª8. Do-it-
yourselfº section.
DRAINING OF COOLANT WATER If the vehicle is to be left outside without
anti-freeze, drain the cooling system by open-
ing the drain plug located under the radiator.
Refill before operating the vehicle. See ªEn-
gine cooling systemº in the ª8. Do-it-yourselfº
section for changing engine coolant. TIRE EQUIPMENT 1. SUMMER tires are of a tread design to
provide superior performance on dry pave-
ment. However, the performance of these
tires will be substantially reduced in snowy
and icy conditions. If you operate your
vehicle on snowy or icy roads, INFINITI
recommends the use of MUD & SNOW or
ALL SEASON tires on all four wheels.
Please consult your INFINITI retailer for the
tire type, size, speed rating and availability
information.
2. For additional traction on icy roads, studded
tires may be used. However, some prov-
inces and states prohibit their use. Check
local, state and provincial laws before in-
stalling studded tires.
Skid and traction capabilities of studded
snow tires, on wet or dry surfaces, may be
poorer than that of non-studded snow tires.
3. Tire chains may be used if desired. Make
sure they are of proper size for the tires on
your vehicle and are installed according to
the chain manufacturer's suggestions. Use
of tire chains may be prohibited according
to location. Check the local laws before
installing tire chains. When installing tire
chains, make sure they are of proper size
for the tires on your vehicle and are in- stalled according to the chain manufactur-
er's suggestions. Use only SAE Class S
chains. Class ªSº chains are used on ve-
hicles with restricted tire to vehicle clear-
ance. Vehicles that can use Class ªSº
chains are designed to meet the SAE stan-
dard minimum clearances between the tire
and the closest vehicle suspension or body
component required to accommodate the
use of a winter traction device (tire chains
or cables). The minimum clearances are
determined using the factory equipped tire
size. Other types may damage your ve-
hicle. Use chain tensioners when recom-
mended by the tire chain manufacturer to
ensure a tight fit. Loose end links of the tire
chain must be secured or removed to pre-
vent the possibility of whipping action dam-
age to the fenders or underbody. If pos-
sible, avoid fully loading your vehicle when
using tire chains. In addition, drive at a
reduced speed. Otherwise, your vehicle
may be damaged and/or vehicle handling
and performance may be adversely af-
fected.
Never install tire chains on a T-type spare
tire. Do not use tire chains on dry roads.
SPECIAL WINTER EQUIPMENT It is recommended that the following items beCOLD WEATHER DRIVING
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carried in the vehicle during winter:
O a scraper and stiff-bristled brush to remove
ice and snow from the windows and wiper
blades.
O a sturdy, flat board to be placed under the
jack to give it firm support.
O a shovel to dig the vehicle out of snow-
drifts.
O extra window washer fluid to refill the res-
ervoir tank.
DRIVING ON SNOW OR ICE
WARNINGO Wet ice (32ÉF, 0ÉC and freezing rain),
very cold snow or ice can be slick and
very hard to drive on. The vehicle will
have a lot less traction or grip under
these conditions. Try to avoid driving
on wet ice until the road is salted or
sanded.
O Whatever the condition, drive with
caution. Accelerate and slow down
with care. If accelerating or down-
shifting too fast, the drive wheels will lose even more traction.
O Allow more stopping distance under
these conditions. Braking should be
started sooner than on dry pavement.
O Allow greater following distances on
slippery roads.
O Watch for slippery spots (glare ice).
These may appear on an otherwise
clear road in shaded areas. If a patch
of ice is seen ahead, brake before
reaching it. Try not to brake while
actually on the ice, and avoid any
sudden steering maneuvers.
O Do not use cruise control on slippery
roads.
O Snow can trap dangerous exhaust
gases under your vehicle. Keep snow
clear of the exhaust pipe and from
around your vehicle.
ENGINE BLOCK HEATER (if so
equipped) An engine block heater to assist extreme cold
temperature starting is available through your
INFINITI retailer. WARNING Do not use your heater with an un-
grounded electrical system or two-
pronged (cheater) adapters. You can be
injured by an electrical shock if you use
an ungrounded connection.
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Every new INFINITI comes with a 4 year,
unlimited mileage Roadside Assistance plan.
In the event of a roadside emergency,
Roadside Assistance Service is available to
you. Please refer to your Warranty Booklet
(U.S.) or Warranty & Roadside assistance
information booklet (Canada) for details. Both
the Warranty Booklet and Roadside
Assistance Calling Card in your Owner's
Literature Portfolio provide the Toll-Free
Number to call for assistance. Roadside
Assistance is provided 24 hours a day, 365
days a year, for 4 years from the date sold to
give emergency roadside help, in the event of
mechanical or nonmechanical trouble(s) such
as flat tires, out-of-gas, dead battery, lost
keys, mechanical breakdown, accident, etc. CHANGING A FLAT TIRE If you have a flat tire, follow the instructions
below.
Stopping the vehicle 1. Safely move the vehicle off the road away
from traffic.
2. Turn on the hazard warning flashers.
3. Park on a level surface and apply the
parking brake. Shift the manual transmis-
sion into R (Reverse) position (automatic
transmission in P (Park) position).
4. Turn off the engine.
5. Raise the hood to warn other traffic, and to
signal professional road assistance person-
nel that you need assistance.
6. Have all passengers get out of the vehicle
and stand in a safe place, away from traffic
and clear of the vehicle.
WARNING O Make sure that the parking brake is
securely applied and the manual
transmission is shifted into R (Re- verse), or the automatic transmission
into P (Park).
O Never change tires when the vehicle
is on a slope, ice or slippery areas.
This is hazardous.
O Never change tires if oncoming traffic
is close to your vehicle. Wait for pro-
fessional road assistance.ROADSIDE ASSISTANCE
PROGRAM FLAT TIRE
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The jack should be used on level firm
ground.
2. Loosen each wheel nut one or two turns by
turning counterclockwise with the wheel nut
wrench. Do not remove the wheel nuts
until the tire is off the ground.
3. Carefully raise the vehicle until the tire
clears the ground. To lift the vehicle, se-
curely hold the jack lever and rod with both
hands as shown above. Remove the wheel
nuts, and then remove the tire.
WARNING O Never get under the vehicle while it is
supported only by the jack.
O Use only the jack provided with your
vehicle to lift the vehicle. Do not use
the jack provided with your vehicle
on other vehicles.
The jack is designed only for lifting
your vehicle during a tire change. O Use the correct jack up points; never
use any other part of the vehicle for
jack support.
O Never jack up the vehicle more than
necessary.
O Never use blocks on or under the
jack.
O Do not start or run engine while ve-
hicle is on the jack, as it may cause
the vehicle to move. This is especially
true for vehicles with limited slid dif-
ferential carriers.
O Do not allow passengers to stay in
the vehicle while it is on the jack. CE1092
In case of emergency
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Stowing the damaged tire and tools Securely store the spare tire and jacking
equipment in the vehicle.
WARNINGO Always make sure that the spare tire
and jacking equipment are properly
secured after use. Such items can
become dangerous projectiles in an
accident or sudden stop.
O The T-type spare tire and small size spare tire are designed for emer-
gency use. See ªWheels and tiresº in
the ª8. Do-it-yourselfº section.
If needed Roadside Assistance is available.
Please see your Warranty Information Booklet
or Roadside Assistance I.D. Card for the toll-
free number to call (U.S.) or Warranty & Road-
side assistance information booklet (Canada). To start your engine with a booster battery, the
instructions and precautions below must be
followed.
WARNING O If done incorrectly, jump starting can
lead to a battery explosion, resulting
in severe injury or death. It could also
damage your vehicle.
O Explosive hydrogen gas is always
present in the vicinity of the battery.
Keep all sparks and flames away from
the battery.
O Do not allow battery fluid to come
into contact with eyes, skin, cloth or
painted surfaces. Battery fluid is a
corrosive sulphuric acid solution
which can cause severe burns. If the
fluid should come into contact with
anything, immediately flush the con-
tacted area with water.
O Keep battery out of the reach of
children.SCE0384A SCE0425
JUMP STARTING
In case of emergency
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CAUTIONO Always connect positive (+) to posi-
tive (+) and negative (þ) to body
ground (for example, strut mounting
bolt, etc. Ð not to the battery).
O Make sure that cables do not touch
moving parts in the engine compart-
ment and that clamps do not contact
any other metal.
5. Start the engine of the other vehicle and let
it run for a few minutes.
6. Keep the engine speed of the other vehicle
at about 2,000 rpm, and start your engine in
the normal manner.
CAUTIONDo not keep starter motor engaged for
more than 10 seconds. If the engine
does not start right away, turn the key
off and wait 3 to 4 seconds before trying
again. 7. After starting your engine, carefully discon-
nect the negative cable and then the posi-
tive cable.
8. Replace the vent caps (if so equipped). Be
sure to dispose of the cloth used to cover
the vent holes as it may be contaminated
with corrosive acid. Do not attempt to start the engine by pushing.
CAUTION O Automatic transmission models can-
not be push started. Attempting to do
so may cause transmission damage.
O Three way catalyst equipped models
should not be started by pushing
since the three way catalyst may be
damaged.
O Never try to start the vehicle by tow-
ing it; when the engine starts, the
forward surge could cause the ve-
hicle to collide with the tow vehicle.
If needed Roadside Assistance is available.
Please see your Warranty Information Booklet
or Roadside Assistance I.D. Card for the toll-
free number to call (U.S.) or Warranty & Road-
side assistance information booklet (Canada).PUSH STARTING
In case of emergency
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