engine overheat NISSAN MAXIMA 2003 A33 / 5.G Owners Manual

ENGINE COOLANT
TEMPERATURE GAUGEThe gauge indicates the engine coolant tem-
perature.
The engine coolant temperature will vary with
the outside air temperature and driving condi-
tions.
CAUTION
If the gauge indicates engine coolant
temperature over the normal range, stop
the vehicle as soon as safely possible. If
the engine is overheated, continued op-
eration of the vehicle may seriously
damage the engine. See ªIf your vehicle
overheatsº in the ª6. In case of emer-
gencyº section for immediate action re-
quired.
FUEL GAUGEThe gauge indicates the approximate fuel level
in the tank.
The gauge may move slightly during braking,
turning, acceleration, or going up or down hill.
The gauge needle is designed to move to the
E (Empty) position when the ignition key is
turned to the OFF position.
Refill the fuel tank before the gauge regis-
ters Empty.
SIC0173
SIC1738
Instruments and controls
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The front seats are warmed by built-in heaters.
The switches located on the center console
can be operated independently of each other.
1. Start the engine.
2. Select heat range.
IFor low heat, press the
(Low) side
of the switch.
IFor high heat, press the
(High)
side of the switch.
IFor no heat, the switch has a center OFF
position between low and high.
The indicator light in the switch will illumi-nate when low or high is selected.
The heater is controlled by a thermostat,
automatically turning the heater on and off.
The indicator light will remain on as long as
the switch is on.
3. When the vehicle's interior is warmed, or
before you leave the vehicle, be sure to turn
the switch to the off position (center).
CAUTION
IThe battery could run down if the seat
heater is operated while the engine is
not running.
IDo not use the seat heater for ex-
tended periods or when no one is
using the seat.
IDo not put anything on the seat which
insulates heat, such as a blanket,
cushion, seat cover, etc. Otherwise,
the seat may become overheated.
IDo not place anything hard or heavy
on the seat or pierce it with a pin or
similar object. This may result in
damage to the heater.IAny liquid spilled on the heated seat
should be removed immediately with
a dry cloth.
IWhen cleaning the seat, never use
gasoline, thinner, or any similar ma-
terials.
IIf any abnormalities are found or the
heated seat does not operate, turn
the switch off and have the system
checked by your NISSAN dealer.
SIC1742
HEATED SEATS (if so equipped)
Instruments and controls
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draw. Do not use double adapters or
more than one electrical accessory.
IUse this power outlet with the engine
running. (If the engine is stopped,
this could result in a discharged bat-
tery.)
IAvoid using when the air conditioner,
headlights or rear window defogger
is on.
IBefore inserting or disconnecting a
plug, be sure to turn off the power
switch of electrical accessory being
used or the ACC power of the vehicle.
IPush the plug in as far as it will go. If
good contact is not made, the plug
may overheat or the internal tempera-
ture fuse may blow.
IWhen not in use, be sure to close the
cap. Do not allow water to contact the
socket.The cigarette lighter element is an accessory.
A genuine NISSAN cigarette lighter unit can be
purchased from your local NISSAN dealer.
The cigarette lighter operates when the igni-
tion switch is in the ACC or ON position.
Push the lighter in all the way. When the lighter
is heated, it will spring out.
Return the lighter to its original position after
use.
WARNING
The cigarette lighter should not be used
while driving so full attention may be
given to vehicle operation.
CAUTION
The cigarette lighter socket is a power
source for the cigarette lighter element
only. The use of the cigarette lighter
socket as a power source for any other
accessory is not recommended.
SIC1233A
CIGARETTE LIGHTER AND
ASHTRAY (accessory)
Instruments and controls
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d. You have had an accident involv-
ing damage to the exhaust system,
underbody, or rear of the vehicle.
THREE WAY CATALYSTThe three way catalyst is an emission control
device installed in the exhaust system. Ex-
haust gases in the converter are burned at
high temperatures to help reduce pollutants.
WARNING
IThe exhaust gas and the exhaust sys-
tem are very hot. Keep people, ani-
mals or flammable materials away
from the exhaust system compo-
nents.
IDo not stop or park the vehicle over
flammable materials such as dry
grass, waste paper or rags. They may
ignite and cause a fire.
CAUTION
IDo not use leaded gasoline. Deposits
from leaded gasoline seriously re-
duce the three way catalyst's ability
to help reduce exhaust pollutants.
IKeep your engine tuned up. Malfunc-
tions in the ignition, fuel injection, or
electrical systems can cause over-
rich fuel flow into the three way cata-
lyst, causing it to overheat. Do not
keep driving if the engine misfires, or
if noticeable loss of performance or
other unusual operating conditions
are detected. Have the vehicle in-
spected promptly by an authorized
NISSAN dealer.
IAvoid driving with an extremely low
fuel level. Running out of fuel could
cause the engine to misfire, damag-
ing the three way catalyst.
IDo not race the engine while warming
it up.
IDo not push or tow your vehicle to
start the engine.
AVOIDING COLLISION AND
ROLLOVER
WARNING
Failure to operate this vehicle in a safe
and prudent manner may result in loss
of control or an accident.
Be alert and drive defensively at all times.
Obey all traffic regulations. Avoid excessive
speed, high speed cornering, or sudden steer-
ing maneuvers, because these driving prac-
tices could cause you to lose control of your
vehicle.As with any vehicle, a loss of con-
trol could result in a collision with other
vehicles or objects, or cause the vehicle to
rollover, particularly if the loss of control
causes the vehicle to slide sideways.Be
attentive at all times, and avoid driving when
tired. Never drive when under the influence of
alcohol or drugs (including prescription or
over-the-counter drugs which may cause
drowsiness). Always wear your seat belt. See
ªSeat Beltsº in the ª1. Seats, restraints and
supplemental air bag systemsº section. Also
instruct your passengers to do so.
Starting and driving
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BRAKING PRECAUTIONSThe 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.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.
WARNING
IWhile 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.
IIf 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, thesystem helps the driver maintain steering con-
trol and helps to minimize swerving and spin-
ning on slippery surfaces.
Using the systemDepress the brake pedal and hold it down.
WARNING
Do not pump the brake pedal. Doing so
may result in increased stopping dis-
tances.Normal operationThe 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
BRAKE SYSTEM5-18
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on, this could cause the three way
catalyst to overheat and be damaged.
To avoid this, the TCS will automati-
cally turn off. Shifting the gear selec-
tor to D will reactivate the TCS.
WARNING
This system is designed to prevent the
wheels from spinning. However, it does
not prevent vehicle slipping or spinning
due to abrupt steering operation at high
speeds or by careless or dangerous
driving techniques. Be especially care-
ful when driving on slippery surfaces
and always drive safely.
FREEING A FROZEN DOOR LOCKTo 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-FREEZEIn 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. Maintenance and do-it-
yourselfº section.BATTERYIf 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. Mainte-
nance and do-it-yourselfº section.DRAINING OF COOLANT WATERIf the vehicle is to be left outside without
anti-freeze, drain the cooling system by open-
ing the drain valves located under the radiator
and on the engine block. Refill before operat-
ing the vehicle. See ªEngine cooling systemº in
the ª8. Maintenance and do-it-yourselfº sectionfor changing engine coolant.
TIRE EQUIPMENT1. 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, NISSAN
recommends the use of MUD & SNOW or
ALL SEASON tires on all four wheels.
Please consult your NISSAN dealer 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
COLD WEATHER DRIVING
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WARNING
IDo not continue to drive if your ve-
hicle overheats. Doing so could
cause a vehicle fire.
ITo avoid the danger of being scalded,
never remove the radiator cap while
the engine is still hot. When the radia-
tor cap is removed, pressurized hot
water will spurt out, possibly causing
serious injury.
IDo not open the hood if steam is
coming out.
If your vehicle is overheating (indicated by an
extremely high temperature gauge reading), or
if you feel a lack of engine power, detect
abnormal noise, etc., take the following steps:
1. Move the vehicle safely off the road, apply
the parking brake and move the shift lever
to the N (Neutral) position (automatic trans-
mission to the P (Park) position).
Do not stop the engine.
2. Turn off the air conditioner switch. Open all
the windows, move the heater or air condi-tioner temperature control to maximum hot
and fan control to high speed.
3. Get out of the vehicle. Look and listen for
steam or coolant escaping from the radiator
before opening the hood. Wait until no
steam or coolant can be seen before pro-
ceeding.
4. Open the engine hood.
WARNING
If steam or water is coming from the
engine, stand clear to prevent getting
burned.
5. Visually check if the cooling fan is running.
The radiator hoses and radiator should not
leak water.
If coolant is leaking or the cooling fan does
not run, stop the engine.
WARNING
IBe careful not to allow your hands,
hair, jewelry or clothing to come intocontact with, or to get caught in the
cooling fan, or drive belt.
IThe engine cooling fan can start at
any time when the coolant tempera-
ture is high.
6. After the engine cools down, check the
coolant level in the reservoir tank with the
engine running. Add coolant to the reservoir
tank if necessary. Have your vehicle re-
paired at the nearest NISSAN dealer.
IF YOUR VEHICLE OVERHEATS
In case of emergency
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The engine cooling system is filled at the
factory with a high-quality, year-round, anti-
freeze coolant solution. The anti-freeze solu-
tion contains rust and corrosion inhibitors,
therefore additional cooling system additives
are not necessary.
CAUTION
When adding or replacing coolant, be
sure to use only a genuine NISSAN anti-
freeze coolant or equivalent with the
proper mixture ratio of 50% anti-freeze
and 50% demineralized water/distilled
water. The use of other types of coolant
solutions may damage your engine
cooling system.Outside temperature
down to
Anti-
freezeDeminer-
alized
water/
distilled
water ÉC ÉF
þ35 þ30 50% 50%
WARNING
INever remove the radiator cap when
the engine is hot. Serious burns
could be caused by high pressure
fluid escaping from the radiator. Wait
until the engine and radiator cool
down.
ISee ªIf your vehicle overheatsº in the
ª6. In case of emergencyº section.
IThe radiator is equipped with a pres-
sure cap. To prevent engine damage,
use only a genuine NISSAN radiator
cap.
CHECKING ENGINE COOLANT
LEVELCheck the coolant level in the reservoir tank
when the engine is cold. If the coolant level is
below MIN, add coolant up to the MAX level. If
the reservoir tank is empty, check the coolant
level in the radiatorwhen the engine is cold.
If there is insufficient coolant in the radiator, fill
the radiator with coolant up to the filler opening
and also add it to the reservoir tank up to the
MAX level.
If the engine cooling system frequently
requires coolant, have it checked by your
NISSAN dealer.
SDI0960
ENGINE COOLING SYSTEM8-8
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CHANGING ENGINE COOLANTIMajor cooling system repairs should be
performed by your NISSAN dealer. The
service procedures can be found in the
appropriate NISSAN Service Manual.IImproper servicing can result in reduced
heater performance and engine overheat-
ing.
WARNING
ITo avoid being scalded, never change
the coolant when the engine is hot.
INever remove the radiator cap when
the engine is hot. Serious burns
could be caused by high pressure
fluid escaping from the radiator.
IAvoid direct skin contact with used
coolant. If skin contact is made, wash
thoroughly with soap or hand cleaner
as soon as possible.
IKeep coolant out of reach of children
and pets.
1. Perform the following procedure to open
the heater water cock.
ITurn the ignition key from OFF to ON.
IMove the heater or air conditioner tem-
perature control dial to the maximum hot
position then turn the ignition key to
OFF.
2. Open radiator drain valve at the bottom ofradiator, and remove radiator filler cap.
IBe careful not to allow coolant to con-
tact drive belts.
IWaste coolant must be disposed of
properly. Check your local regulations.
3. Close the radiator drain valve securely after
the coolant is drained.
4. Fill the radiator slowly with the proper mix-
ture of anti-freeze solution and demineral-
ized water/distilled water. Fill the reservoir
tank up to the MAX level. Then install the
radiator filler cap.
5. Start the engine and warm it up until it
reaches normal operating temperature.
Then race the engine 2 or 3 times under no
load.
Watch the engine coolant temperature
gauge for signs of overheating.
6. Stop the engine. After it completely cools
down, refill the radiator up to the filler
opening. Fill the reservoir tank up to the
MAX level. Check the drain valve for any
sign of leakage.
7. Recheck the coolant level after the vehicle
has been driven for a day.
SDI0114
Maintenance and do-it-yourself
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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 NISSAN 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
a NISSAN dealer 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.9-4
Technical and consumer information
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