engine overheat NISSAN SENTRA 2004 B15 / 5.G Owners Manual
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Page 61 of 248
ENGINE COOLANT TEMPERATURE
GAUGE
The gauge indicates the engine coolant tempera-
ture. The engine coolant temperature is within the
normal range
s1when the gauge needle points
between the C and the H on the gauge.
The engine coolant temperature varies with the
outside air temperature and driving conditions.
CAUTION
If the gauge indicates engine coolant tem-
perature over the normal range, stop the
vehicle as soon as safely possible. If the
engine is overheated, continued opera-
tion of the vehicle may seriously damage
the engine. See “If your vehicle over-
heats” in the “In case of emergency” sec-
tion for immediate action required.
FUEL GAUGE
The gauge indicates theapproximatefuel level
in the tank.
The gauge may move slightly during braking,
turning, acceleration, or going up or down hills.
The gauge needle returns to E (Empty) after the
ignition key is turned to OFF.
The low fuel warning light comes on when the
amount of fuel in the tank is getting low.
Refill the fuel tank before the gauge regis-
ters E (Empty) .
Type A
WIC0483
Type B
WIC0234
Type A
WIC0484
Instruments and controls2-7
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CAUTION
cThe outlet and plug may be hot during
or immediately after use.
cOnly certain power outlets are designed
for use with a cigarette lighter unit. Do
not use any other power outlet for an
accessory lighter. See your NISSAN
dealer for additional information.
cDo not use with accessories that ex-
ceed a 12 volt, 120W (10A) power draw.
Do not use double adapters or more
than one electrical accessory.cUse power outlets with the engine run-
ning to avoid discharging the vehicle
battery.
cAvoid using power outlets when the air
conditioner, headlights or rear window
defroster is on.
cBefore inserting or disconnecting a
plug, be sure the electrical accessory
being used is turned OFF.
cPush the plug in as far as it will go. If
good contact is not made, the plug may
overheat or the internal temperature
fuse may blow.
cWhen not in use, be sure to close the
cap. Do not allow water to contact the
outlet.This power outlet
sAcan be used with an acces-
sory cigarette lighter element. Contact your
NISSAN dealer for information.
This power outlet can also be used for powering
electrical accessories such as cellular tele-
phones.
CAUTION
cThe cigarette lighter should not be used
while driving so full attention may be
given to vehicle operation.
cThe outlet and plug may be hot during
or immediately after use.
Console (if so equipped)
WIC0251WIC0722
CIGARETTE LIGHTER
2-22Instruments and controls
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cDo not use any other power outlet for an
accessory lighter.
cDo not use with accessories that ex-
ceed a 12 volt, 120W (10A) power draw.
Do not use double adapters or more
than one electrical accessory.
cUse power outlets with the engine run-
ning to avoid discharging the vehicle
battery.
cAvoid using power outlets when the air
conditioner, headlights or rear window
defroster is on.
cBefore inserting or disconnecting a
plug, be sure the electrical accessory
being used is turned OFF.
cPush the plug in as far as it will go. If
good contact is not made, the plug may
overheat or the internal temperature
fuse may blow.
cWhen not in use, be sure to close the
cap. Do not allow water to contact the
outlet.
SUNGLASSES HOLDER (if so
equipped)
To open the sunglasses holder, push and release.
WARNING
The sunglasses case should not be used
while driving so full attention may be
given to vehicle operation.
CAUTION
cDo not use for anything other than
sunglasses.
cDo not leave sunglasses in the sun-
glasses holder while parking in direct
sunlight. The heat may damage the
sunglasses.
WIC0253
STORAGE
Instruments and controls2-23
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Dehumidified heating
This mode is used to heat and dehumidify the air.
1. Push the
button to the off position.
2. Turn the air flow control dial to the
position.
3. Turn the fan control dial to the desired posi-
tion.
4. Push the
button. The indicator light
comes on.
5. Turn the temperature control dial to the de-
sired position.
Dehumidified defogging
This mode is used to defog the windows and
dehumidify the air.
1. Turn the air flow control dial to the
position.
2. Turn the fan control dial to the desired posi-
tion.
3. Push on the air conditioner button. The indi-
cator light comes on.
When the
,or positions in between
are selected, the air conditioner automatically
turns on (however, the indicator light will not
illuminate) if the outside temperature is more than45°F (7°C) . The air conditioning system will con-
tinue to operate until the vehicle is shut OFF, even
if the air flow control dial is turned to a position
other than the
position. This dehumidifies
the air which helps defog the windshield.
The
mode automatically turns off, allowing
outside air to be drawn into the passenger com-
partment to further improve the defogging perfor-
mance.
4. Turn the temperature control dial to the de-
sired position.
Operating tips
cKeep the windows and sunroof closed while
the air conditioner is in operation.
cAfter parking in the sun, drive for 2 or 3
minutes with the windows open to vent hot
air from the passenger compartment. Then,
close the windows. This allows the air con-
ditioner to cool the interior more quickly.
cThe air conditioning system should be
operated for approximately 10 minutes
at least once a month. This helps pre-
vent damage to the system due to lack
of lubrication.
cIf the engine coolant temperature
gauge indicates engine coolant tem-
perature over the normal range, turn
the air conditioner off. See “If yourvehicle overheats” in the “In case of
emergency” section of this manual.
AIR FLOW CHARTS
The following charts show the button and dial
positions forMAXIMUM AND QUICKheating,
cooling or defrosting.The air recirculation
button should always be in the OFF posi-
tion for heating and defrosting.
4-6Heater, air conditioner and audio systems
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CAUTION
cDo not use leaded gasoline. Deposits
from leaded gasoline will seriously re-
duce the three-way catalyst’s ability to
help reduce exhaust pollutants.
cKeep your engine tuned up. Malfunc-
tions in the ignition, fuel injection, or
electrical systems can cause overrich
fuel flow into the three-way catalyst,
causing it to overheat. Do not keep driv-
ing if the engine misfires, or if notice-
able loss of performance or other un-
usual operating conditions are
detected. Have the vehicle inspected
promptly by a NISSAN dealer.
cAvoid driving with an extremely low fuel
level. Running out of fuel could cause
the engine to misfire, damaging the
three-way catalyst.
cDo not race the engine while warming it
up.
cDo 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 steering ma-
neuvers, because these driving practices could
cause you to lose control of your vehicle.As with
any vehicle, loss of control could result in a
collision with other vehicles or objects, or
cause the vehicle to roll over, 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 pre-
scription or over-the-counter drugs which may
cause drowsiness) . Always wear your seat belt
as outlined in the “Safety – Seats, seat belts and
supplemental air bags” section of this manual,
and also instruct your passengers to do so.
Seat belts help reduce the risk of injury in collisions
and rollovers.In a rollover crash, an unbelted
or improperly belted person is significantly
more likely to be injured or killed than a
person properly wearing a seat belt.
DRINKING ALCOHOL/DRUGS AND
DRIVING
WARNING
Never drive under the influence of alcohol
or drugs. Alcohol in the bloodstream re-
duces coordination, delays reaction time
and impairs judgement. Driving after
drinking alcohol increases the likelihood
of being involved in an accident injuring
yourself and others. Additionally, if you
are injured in an accident, alcohol can
increase the severity of the injury.
NISSAN is committed to safe driving. However,
you must choose not to drive under the influence
of alcohol. Every year thousands of people are
injured or killed in alcohol-related accidents. Al-
though the local laws vary on what is considered
to be legally intoxicated, the fact is that alcohol
affects all people differently and most people
underestimate the effects of alcohol.
Remember, drinking and driving don’t mix! And
that is true for drugs, too (over-the-counter, pre-
scription, and illegal drugs) . Don’t drive if your
ability to operate your vehicle is impaired by alco-
hol, drugs, or some other physical condition.
Starting and driving5-3
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cHEADED UPHILL OR DOWNHILL, NO
CURB:
sC
Turn the wheels toward the side of the road
so the vehicle will move away from the cen-
ter of the road if it moves.
4. Turn the ignition key to the LOCK position
and remove the key.The power assisted steering uses 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, especially
in sharp turns and 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.The brake system has two separate hydraulic
circuits. If one circuit malfunctions, you will still
have braking at two wheels.
BRAKE PRECAUTIONS
Vacuum assisted brakes
The brake booster aids braking by using engine
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 stopping dis-
tance will be longer.
Using the brakes
Avoid resting your foot on the brake pedal while
driving. This will overheat the brakes, wear out the
brakes and pads faster, and reduce gas mileage.
To help reduce brake wear 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.
POWER STEERING BRAKE SYSTEM
5-18Starting and driving
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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.
WARNING
cDo not continue to drive if your vehicle
overheats. Doing so could cause engine
damage or a vehicle fire.
cTo avoid the danger of being scalded,
never remove the radiator cap while the
engine is still hot. When the radiator
cap is removed, pressurized hot water
will spurt out, possibly causing serious
injury.
cDo not open the hood if steam is com-
ing out.
1. Move the vehicle safely off the road, apply
the parking brake and move the shift lever to
N (Neutral) (manual transmission) or to P
(Park) (automatic transmission) .
Do not stop the engine.
2. Turn off the air conditioner (if so equipped) .
Open all the windows, move the heater or air
conditioner 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. (If steam or cool-
ant is escaping, turn off the engine.) Do not
open the hood further until no steam or
coolant can be seen.
4. Open the engine hood.
WARNING
If steam or water is coming from the en-
gine, stand clear to prevent getting
burned.
5. Visually check drive belts for damage or
looseness. Also check if the cooling fan is
running. The radiator hoses and radiator
should not leak water. If coolant is leaking,
the water pump belt is missing or loose, or
the cooling fan does not run, stop the en-
gine.
WARNING
Be careful not to allow your hands, hair,
jewelry or clothing to come into contact
with, or get caught in, engine belts or the
engine cooling fan. The engine cooling
fan can start at any time when the coolant
temperature is high.6. After the engine cools down, check the cool-
ant level in the engine coolant reservoir tank
with the engine running. Add coolant to the
engine coolant reservoir tank if necessary.
Have your vehicle repaired at a NISSAN
dealer.
IF YOUR VEHICLE OVERHEATS
6-10In case of emergency
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CHANGING ENGINE COOLANT
Major cooling system repairs should be per-
formed by a NISSAN dealer. The service proce-
dures can be found in the NISSAN Service
Manual.
Improper servicing can result in reduced
heater performance and engine overheat-
ing.
WARNING
cTo avoid the danger of being scalded,
never change the coolant when the en-
gine is hot.
cNever remove the radiator cap when the
engine is hot. Serious burns could be
caused by high pressure fluid escaping
from the radiator.
cAvoid direct skin contact with used
coolant. If skin contact is made, wash
thoroughly with soap or hand cleaner
as soon as possible.
cKeep coolant out of the reach of chil-
dren and pets.Engine coolant must be disposed of prop-
erly. Check your local regulations.
1. Open the radiator drain plug by turning it
counterclockwise.
QG18DE engine
WDI0169
QR25DE engine
WDI0170
Maintenance and do-it-yourself8-9
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2. Open the drain plug on the engine block.
3. Open the radiator cap to drain the coolant.
cWaste coolant must be disposed of prop-
erly.
cCheck your local regulations.
4. Flush the cooling system by running fresh
water through the radiator.
5. Close the drain plugs on the radiator and the
engine block securely.6. See the “Technical and consumer informa-
tion” section for cooling system capacity. Fill
the radiator slowly with the proper mixture of
coolant and water. Fill the reservoir tank up
to the MAX level.
7. For QG18DE engine only, open and close
the air release plug(s) to release air. Then fill
the radiator again and install the radiator
cap.8. Start the engine, and warm it up until it
reaches normal operating temperature.
Then race the engine two or three times
under no load. Watch the engine coolant
temperature gauge for signs of overheating.
9. Stop the engine. After it completely cools
down, refill the radiator up to the filler open-
ing. Fill the engine coolant reservoir tank up
to the MAX level.
10. For QG18DE engine only, open and close
the air release plug(s) to release air. Then fill
the radiator again and install the radiator
cap.
11. Check the drain plugs on the radiator and
the engine block for any sign of leakage. For
QG18DE only, also check the air release
plug for any sign of leakage.
QG18DE engine
WDI0171
QG18DE engine
WDI0172
8-10Maintenance and do-it-yourself
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Aftermarket fuel additives
NISSAN does not recommend the use of any
aftermarket fuel additives (for example, fuel injec-
tor 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 solvents or
similar ingredients that can be harmful to the fuel
system and engine.
Octane rating tips
Using unleaded gasoline with an octane
rating lower than stated can cause persis-
tent, heavy “spark knock.” (“Spark knock”
is a metallic rapping noise.) If severe, 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
a NISSAN dealer correct the condition.
Failure to correct the condition is misuse of
the vehicle, for which NISSAN is not re-
sponsible.
Incorrect ignition timing may result in spark
knock, after-run and/or overheating, which may
cause excessive fuel consumption or enginedamage. If any of the above symptoms are en-
countered, have your vehicle checked at a
NISSAN dealer.
However, now and then you may notice
light spark knock for a short time while
accelerating or driving up hills. This is not a
cause for concern, because you get the
greatest fuel benefit when there is light
spark knock for a short time under heavy
engine load.
9-4Technical and consumer information
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