overheating NISSAN 350Z 2006 Z33 Owners Manual
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HEADED UPHILL WITH CURB:
Turn the wheels away from the curband
move the vehicle back until the curb side
wheel gently touches the curb.
HEADED UPHILL OR DOWNHILL, NO
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 uses a hydraulic
pump, driven by the engine, to assist steering.
If the engine stops or drive belt breaks, you will
still have control of the vehicle. However, much
greater steering effort is needed, especially in
sharp turns or at low speeds.
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 PRECAUTIONSThe brake system has two separate hydraulic
circuits. If one circuit malfunctions, you will still
have braking at two wheels.Vacuum assisted brakesThe 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 the stopping
distance will be longer.Using the brakesAvoid resting your foot on the brake pedal while
driving. This overheats the brakes, increases
wear on the brakes and pads, and reduces gas
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.
POWER STEERING BRAKE SYSTEM
Starting and driving
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7. After starting your engine, carefully discon-
nect the negative cable and then the positive
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.
Automatic transmission models can-
not be push started. Attempting to do
so may cause transmission damage.
Three way catalyst equipped models
should not be started by pushing
since the three way catalyst may be
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.
Do not continue to drive if your ve-
hicle overheats. Doing so could
cause engine damage or a vehicle
To avoid the danger of being scalded,
never remove the radiator cap while
the engine is still hot. When the ra-
diator cap is removed, pressurized
hot water will spurt out, possibly
causing serious injury.
Do not open the hood if steam is
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 transmission
to the P (Park) position).
Do not stop the engine.
2. Turn off the air conditioner. Open all the
PUSH STARTING IF YOUR VEHICLE OVERHEATS
In case of emergency
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windows, and move the temperature control
to maximum hot and the fan control to high
3. If engine overheating is caused by climbing a
long hill on a hot day, run the engine at a fast
idle (approximately 1,500 rpm) until the tem-
perature gauge indication returns to normal.
4. Get out of the vehicle. Look and listen for
steam or coolant escaping from the radiator
before opening the hood. (If steam or coolant
is escaping, turn off the engine.) Do not open
the hood further until no steam or coolant can
5. Open the engine hood.
If steam or water is coming from the
engine, stand clear to prevent getting
6. Visually check if the cooling fan is running.
The radiator hoses and radiator should not
If coolant is leaking or the cooling fan does
not run, stop the engine.
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 tempera-
ture is high.
7. After the engine cools down, check the cool-
ant level in the reservoir tank with the engine
running. Add coolant to the reservoir tank if
necessary. Have your vehicle repaired at a
NISSAN dealer.When towing your vehicle, all State (Provincial in
Canada) and local regulations for towing must
be followed. Incorrect towing equipment could
damage your vehicle. Towing instructions are
available from a NISSAN dealer. Local service
operators are generally familiar with the appli-
cable laws and procedures for towing. To assure
proper towing and to prevent accidental damage
to your vehicle, NISSAN recommends having a
service operator tow your vehicle. It is advisable
to have the service operator carefully read the
Never ride in a vehicle that is being
Never get under your vehicle after it
has been lifted by a tow truck.
When towing, make sure that the
transmission, axles, steering system
and powertrain are in working condi-TOWING YOUR VEHICLE
In case of emergency
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CHANGING ENGINE COOLANTMajor cooling system repairs should be per-
formed by a NISSAN dealer. The service
procedures can be found in the appropriate
NISSAN Service Manual.Improper servicing can result in reduced
heater performance and engine overheating.
To avoid being scalded, never change
the coolant when the engine is hot.
Never remove the radiator cap when
the engine is hot. Serious burns
could be caused by high pressure
fluid escaping from the radiator.
Avoid direct skin contact with used
coolant. If skin contact is made, wash
thoroughly with soap or hand cleaner
as soon as possible.
Keep coolant out of reach of children
1. Open radiator drain plug at the bottom of
radiator, and remove radiator filler cap.
Be careful not to allow coolant to con-
tact drive belts.
Waste coolant must be disposed of
properly. Check your local regulations.
2. Close the radiator drain plug securely after
the coolant is drained.3. Fill the radiator slowly with the proper mixture
of anti-freeze solution and demineralized
water/distilled water. Fill the reservoir tank up
to the MAX level. Then install the radiator filler
4. 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.
5. Stop the engine. After it completely cools
down, refill the radiator up to the filler open-
ing. Fill the reservoir tank up to the MAX level.
Check the drain plug for any sign of leakage.
6. Recheck the coolant level after the vehicle
has been driven for a day.
Maintenance and do-it-yourself
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hibitors. If not properly formulated with
appropriate cosolvents and corrosion
inhibitors, such methanol blends may
cause fuel system damage and/or ve-
hicle performance problems. At this
time, sufficient data is not available to
ensure that all methanol blends are
suitable for use in NISSAN vehicles.
If any undesirable driveability problems such as
engine stalling and hard hot starting are experi-
enced after using oxygenate-blend fuels, imme-
diately 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.
E-85 fuelE-85 fuel is a mixture of approximately 85% fuel
ethanol and 15% unleaded gasoline. E-85 can
only be used in a Flexible Fuel Vehicle (FFV). Do
not use E-85 fuel in your vehicle. U.S. govern-
ment regulations require fuel ethanol dispensing
pumps to be identified by a small, square, or-
ange and black label with the common abbre-
viation or the appropriate percentage for that
Aftermarket fuel additivesNISSAN does not recommend the use of any
aftermarket fuel additives (for example, fuel in-
jector cleaner, octane booster, intake valve de-
posit removers, etc.) which are sold commer-
cially. Many of these additives intended for gum,
varnish or deposit removal may contain active
solvents or similar ingredients that can be harm-
ful to the fuel system and engine.Octane rating tipsUsing unleaded gasoline with an octane
rating lower than recommended 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 above stated
octane rating, or if you hear steady spark
knock while holding a steady speed on
level roads, have your dealer correct the
condition. 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 en-
countered, have your vehicle checked at aNISSAN dealer or other competent service fa-
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
Technical and consumer information
Page 280 of 297
the proper equipment and to have it
Trailer lights should comply with federal and/or
local regulations. When wiring the vehicle for
towing, connect the stop and tail light pickup
into the vehicle electrical circuit at a point be-
tween the sensor and stop light or light switch.Trailer brakesIf your trailer is equipped with a braking system,
make sure it conforms to federal and/or local
regulations and that it is properly installed.
Never connect a trailer brake system
directly to the vehicle brake system.Pre-towing tipsBe certain a vehicle maintains a level position
when a loaded and/or unloaded trailer is
hitched. Do not drive the vehicle if it has an
unusual nose-up or nose-down condition;
check for improper tongue load, overload,
worn suspension or other possible causes of
these conditions.Always secure items in the trailer to prevent
load shifts while driving.
Load the trailer so approximately 60% of the
trailer load is in the front half and 40% is in
the back half.
Check your hitch, trailer tire pressure, vehicle
tire pressure, trailer light operation, and trailer
wheel lug nuts every time you attach a trailer
to the vehicle.
Be certain your rear view mirrors conform to
all federal, state and/or local regulations. If
not, install any mirrors required for towing
before driving the vehicle.
Trailer towing tipsIn order to gain skill and an understanding of the
vehicle’s behavior, you should practice turning,
stopping and backing up in an area which is free
from traffic. Steering stability, and braking per-
formance will be somewhat different than under
normal driving conditions.
Always secure items in the trailer to prevent
load shift while driving.
Avoid abrupt starts, acceleration or stops.
Avoid sharp turns or lane changes.
Always drive a vehicle at a moderate speed.
Some states or provinces have specificspeed limits for vehicles that are towing
trailers. Obey the local speed limits.
When backing up, hold the bottom of the
steering wheel with one hand. Move your
hand in the direction in which you want the
trailer to go. Make small corrections and back
up slowly. If possible, have someone guide
you when you are backing up.
Always block the wheels on both vehicle and
trailer when parking. Parking on a slope is not
recommended; however, if you must do so,
and if a vehicle is equipped with automatic
transmission, first apply the parking brake
and block the wheels, and then move the
transmission selector lever into the P (Park)
position. If you move the selector lever to the
P (Park) position before blocking the wheels
and applying the parking brake, the transmis-
sion may get damaged.
When going down a hill, shift into a lower
gear and use the engine braking effect.
When going up a long grade, downshift the
transmission to a lower gear and reduce
speed to reduce chances of engine overload-
ing and/or overheating.
If the engine coolant rises to an extremely
high temperature when the air conditioning
system is on, turn off the air conditioner.
Coolant heat can be additionally vented by
Technical and consumer information