1999 NISSAN FRONTIER cooling

WARNING
IThe air conditioner cooling function
operates only when the engine is
running.
IDo not leave children, unreliable
adults, or pets alone in your vehicle.
On hot sunny days, temperatures in
a closed vehicle could quickly be-
come high enough to cause severe
or possibly fatal injuries to people or
animals.
IDo not use the recirculation mode
for long periods as it may cause theinterior air to become stale and the
windows to fog up.
IPositioning of the heating or air con-
ditioning controls should not be
done while driving, so that full atten-
tion may be given to the driving
operation.
CONTROLS
Fan control lever
This lever turns the fan on and off, and
controls fan speed.
Air control dial
This dial allows you to select the air flow
outlets.
Ð Air flows from center and side
ventilators.
Ð Air flows from center and side
ventilators and foot outlets.
Ð Air flows mainly from foot outlets.
Ð Air flows from defrost outlets and
foot outlets.
ÐAir flows mainly from defrost outlets.
Temperature control dial
This dial allows you to adjust the tempera-
ture of the outlet air.
Air intake lever (if so equipped)
This lever is provided only for vehicles with
an air conditioner.
Ð Outside air is drawn into the pas-
senger compartment and distributed
through the selected outlet.
Use this position for normal heater or air
conditioner operation.
AHA1035
HEATER AND AIR
CONDITIONER
Heater, air conditioner and audio systems4-3
ZX

Ð Interior air is recirculated inside the
vehicle.
Move the air intake lever to the
position:
Iwhen driving on a dusty road.
Ito prevent traffic fumes from entering the
passenger compartment.
Ifor maximum cooling when using the air
conditioner.
Air conditioner switch
(if so equipped)
This switch is present only in vehicles
equipped with an air conditioner.
Start the engine, push the air conditioner
switch and move the fan control lever to the
desired speed. The indicator light comes on
when the air conditioner is operating.
HEATER OPERATION
Heating
This mode directs heated air from the foot
outlets. A small amount of air is also di-
rected from the defrost outlets.
1. Move the air intake lever to the
position for normal heating.
2. Turn the air control dial to theposition.
3. Move the fan control lever to the desired
speed.
4. Turn the temperature control dial clock-
wise until it stops or to the desired posi-
tion.
Ventilation
This mode directs outside air from the side
and center ventilators.
1. Move the air intake lever to the
position.
2. Turn the air control dial to the
position.
3. Move the fan control lever to the desired
speed.
4. Turn the temperature control dial to the
desired position.
Defrosting/defogging
This mode directs heated air from the
defrosting/defogging outlets.
1. Move the air intake lever to the
position.2. Turn the air control dial to the
position.
3. Move the fan control lever to the desired
speed.
4. Turn the temperature control dial clock-
wise until it stops or to the desired posi-
tion.
If it is difficult to defog the windshield,
push the air conditioner switch (if so
equipped) on. This dehumidifies the air,
which helps defog the windshield.
To quickly remove ice or fog from the
windows, move the fan control lever to 4
and the temperature control dial to the
full clockwise position.
Bi-level heating/cooling
This mode directs air from the side and
center ventilators and from the foot outlets.
1. Move the air intake lever to the
position.
2. Turn the air control dial to the
position.
3. Move the fan control lever to the desired
speed.
4-4Heater, air conditioner and audio systems
ZX

4. Turn the temperature control dial to the
desired position.
Heating and defrosting/defogging
This mode directs heated air from the foot
outlets and defrosts/defogs the windshield.
1. Move the air intake lever to the
position.
2. Turn the air control dial to the
position.
3. Move the fan control lever to the desired
speed.
4. Turn the temperature control dial clock-
wise until it stops or to the desired posi-
tion.
If it is difficult to defog the windshield,
push the air conditioner switch (if so
equipped) on. This dehumidifies the air,
which helps defog the windshield.
Operating tips
Clear snow and ice from the wiper blades
and air inlet in front of the windshield. This
improves heater and defroster operation.
AIR CONDITIONER OPERATION
(if so equipped)
Start the engine, move the fan control lever
to the desired (one to four) position, and
push in the air conditioner switch to activate
the air conditioner. When the air conditioner
is on, cooling and dehumidifying functions
are added to the heater operation.
The air conditioner cooling function op-
erates only when the engine is running.
Cooling
This mode directs cool, dehumudified air
from the side and center ventilators.
1. Move the air intake lever to the
position.
2. Turn the air control dial to the
position.
3. Move the fan control lever to the desired
position.
4. Push in the air conditioner switch. The
indicator light comes on.
5. Turn the temperature control dial to the
desired position.
IFor quick cooling when the outside tem-
perature is high, move the air intake leverto the
position. Be sure to return
the air intake lever to theposition
for normal cooling.
Dehumidified heating
This mode directs heated, dehumidfied air
from the defrosting/defogging outlets.
1. Move the air intake lever to the
position.
2. Turn the air control dial to the
position.
3. Move the fan control lever to the desired
position.
4. Push in the air conditioner switch. The
indicator light comes on.
5. Turn the temperature control dial clock-
wise until it stops or to the desired posi-
tion.
Dehumidified defrosting/defogging
This mode directs heated, dehumidified air
from the defrosting/ defogging outlets.
1. Turn the air intake lever to the
po-
sition.
Heater, air conditioner and audio systems
4-5
ZX

AIR FLOW CHARTS
The following charts show the switch and
lever positions forMAXIMUM and QUICK
heating, cooling or defrosting.
The air intake lever should always be in
the
position for heating and de-
frosting.
AHA1067
Heater, air conditioner and audio systems4-7
ZX

Using the system, 2WD Vehicles
(2 wheel rear ABS)
Depress the brake pedal and hold it down.
With the rear anti-lock brake system, the
front wheels can still lock. If this happens,
release the brake pedal slightly and then
reapply pressure.
WARNING
The anti-lock brake system is a sophis-
ticated device. But it cannot prevent
accidents resulting from careless or
dangerous driving techniques. It can
help maintain vehicle control under
some conditions, but remember that
the stopping distance on slippery sur-
faces will be longer than on normal
surfaces even with ABS. Stopping dis-
tances may also be longer on rough,
gravel, or snow covered roads, or if you
are using tire chains. Always maintain a
safe distance from the vehicle in front
of you. Ultimately, the responsibility for
safety of self and others rests in the
hands of the driver.Tire type and condition may also affect
braking effectiveness.
IWhen replacing tires, install the
specified size of tires on all four
wheels.
IWhen installing a spare tire, make
sure it is the proper size and type as
specified on the tire placard. See
``Tire placard'' in the ``Technical and
consumer information'' section.
Freeing a frozen door lock
To prevent a door lock from freezing, apply
de-icer or glycerin through the key hole. If
the lock becomes frozen, heat the key be-
fore inserting it in the key hole.
Anti-freeze
In the winter when it is anticipated that the
temperature will drop below 32ÉF (0ÉC),
check anti-freeze (ethylene glycol base) to
assure proper winter protection. For details,
see ``Engine cooling system'' in the ``Do-it-
yourself'' section of this manual.
Battery
If the battery is not fully charged during
extremely cold weather conditions, the bat-
tery fluid may freeze and damage the bat-
tery. To maintain maximum efficiency, the
battery should be checked regularly. For
details, see ``Battery'' in the ``Do-it-yourself''
section of this manual.
Draining of coolant water
If the vehicle is to be left outside without
anti-freeze, drain the cooling system by
opening the drain valves located under the
radiator and on the engine block. Refill
COLD WEATHER DRIVING
5-30Starting and driving
ZX

If your vehicle is overheating (indicated by
an extremely high temperature gauge read-
ing), or if you feel a lack of engine power, or
detect abnormal noise, etc., take the follow-
ing steps:
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 radiator cap is removed,
pressurized hot water will spurt out,
possibly causing serious injury.
IDo not open the hood if steam is
coming out.
1. Move the vehicle safely off the road,
apply the parking brake and move the
gearshift lever to N (Neutral), or the au-
tomatic transmission into P (Park).
Do not stop the engine.
2.
Turn off the air conditioner (if so
equipped). Open all of the windows,
move the heater or air conditioner tem-perature control to maximum hot and fan
control to high speed.
3. If engine overheating is caused by climb-
ing a long hill on a hot day, run the engine
at a fast idle (approximately 1,500 r/min)
until the temperature gauge indicator re-
turns to normal.
4. Get out of the vehicle. Look and listen for
steam or coolant escaping from the ra-
diator before opening the hood. Wait until
no steam or coolant can be seen before
proceeding.
5. Open the hood.
WARNING
If steam or water is coming from the
engine, stand clear to prevent getting
burned.
6. 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 leak-
ing, or the water pump belt is missing or
loose, or the cooling fan does not run,
stop the engine.
WARNING
IBe careful not to allow your hands,
hair, jewelry or clothing to come into
contact with, or to get caught in, the
running fan or belts.
7. After the engine cools down, check the
coolant level in the reservoir tank with the
engine running. Add coolant to the reser-
voir tank if necessary. Have your vehicle
repaired at an authorized NISSAN
dealer.
IF YOUR VEHICLE
OVERHEATS
6-10In case of emergency
ZX

CAUTION
If you have to tow your vehicle with four
wheels on the ground or with front or
rear wheels raised, observe the follow-
ing restricted towing speeds and dis-
tances:
ISpeed: Below 60 MPH (97 km/h)
IDistance: Less than 500 miles (805
km)
If the speed or distance must necessarily be
greater, remove the front and rear propeller
shafts beforehand to prevent damage to the
transmission.
CAUTION
INever tow your vehicle from the rear
(i.e., backward) with four wheels on
the ground as this may cause seri-
ous and expensive damage to the
transmission.
IBe sure to place the transfer case
shift lever into the 2H position and
the transmission shift lever into the
N (Neutral) position.
VEHICLE RECOVERY (freeing a
stuck vehicle)
ITow chains or cables must be attached
only to the main structural members of
the vehicle.
IPulling devices should be routed so they
do not touch any part of the suspension,
steering, brake or cooling systems.
IAlways pull the cable straight out from
the front or rear of the vehicle. Never pull
the vehicle at an angle.
IPulling devices such as ropes or canvas
straps are not recommended for use in
vehicle towing or recovery.
IStand clear of a stuck vehicle.
WARNING
Do not spin your tires at high speed.
This could cause them to explode and
result in serious injury. Parts of your
vehicle could also overheat and be
damaged.
In case of emergency
6-13
ZX

8 Do-it-yourself
Maintenance precautions .......................................8-2
Engine compartment check locations ....................8-3
Engine cooling system ...........................................8-5
Checking engine coolant level ...............................8-5
Changing engine coolant .......................................8-6
Engine oil ...............................................................8-9
Checking engine oil level .......................................8-9
Changing engine oil .............................................8-10
Changing engine oil filter .....................................8-12
Automatic transmission fluid (atf) .........................8-13
Temperature conditions for checking atf..............8-13
Power steering fluid..............................................8-14
Brake and clutch fluid ...........................................8-15
Window washer fluid ............................................8-15
Battery ..................................................................8-16
Jump starting ........................................................8-17
Drive belts ............................................................8-18Spark plug replacement .......................................8-19
Air cleaner housing filter ......................................8-21
Wiper blades ........................................................8-23
Parking brake check.............................................8-24
Brake pedal ..........................................................8-24
Brake booster .......................................................8-25
Clutch pedal .........................................................8-26
Fuses ....................................................................8-27
Light bulbs ............................................................8-28
Headlights ............................................................8-28
Bulb replacement .................................................8-29
Front fog light bulb replacement (if so
equipped) .............................................................8-31
Wheels and tires...................................................8-32
Four-wheel drive models ......................................8-35
Clutch housing .....................................................8-37
ZX