2002 NISSAN SENTRA Engine

To fill the window washer fluid reservoir, lift
the cap off the reservoir tank and pour the
window washer fluid into the tank opening.
Add a washer solvent to the water for better
cleaning. In the winter season, add a wind-
shield washer antifreeze. Follow the manu-
facturer's instructions for the mixture ratio.
USA Only
Fill the window washer fluid reservoir peri-
odically. Perform the refilling operation
more often under driving conditions that
require an increased amount of window
washer fluid.
Canada Only
Add fluid when the low washer fluid warning
light comes on. Add a washer solvent to the
water for better cleaning. In the winter sea-
son, add a windshield washer antifreeze.
Follow the manufacturer's instructions for
the mixture ratio.
CAUTION
Do not substitute engine anti-freeze
coolant for windshield washer solution.
This may result in damage to the paint.cKeep the battery surface clean and dry.
Any corrosion should be washed off with
a solution of baking soda and water.
cMake certain the terminal connections
are clean and securely tightened.
cIf the vehicle is not to be used for 30 days
or longer, disconnect the negative (þ) bat-
tery terminal cable to prevent discharge.
WARNING
cDo not expose the battery to flames
or electrical sparks. Hydrogen gas
generated by the battery is explo-
sive. Do not allow battery fluid to
contact your skin, eyes, fabrics, or
painted surfaces. After touching a
battery or battery cap, do not touch
or rub your eyes. Thoroughly wash
your hands. If the acid contacts your
eyes, skin or clothing, immediately
flush with water for at least 15 min-
utes and seek medical attention.
cDo not operate the vehicle if the fluid
in the battery is low. Low battery
fluid can cause a higher load on the
battery which can generate heat, re-
duce battery life, and in some cases
lead to an explosion.
WDI0040
WINDOW WASHER FLUID BATTERY
Maintenance and do-it-yourself8-19
ZX

JUMP STARTING
If jump starting is necessary, see the ``In
case of emergency'' section of this owner's
manual. If the engine does not start by jump
starting, the battery may have to be re-
placed. Contact an authorized NISSAN
dealer.
Maintenance and do-it-yourself
8-21
ZX

WARNING
Be sure the ignition key is in the OFF or
LOCK position. The engine could rotate
unexpectedly.
1. Visually inspect each belt for signs of
unusual wear, cuts, fraying or looseness.
If the belt is in poor condition or loose,
have it replaced or adjusted by an autho-
rized NISSAN dealer.
2. Have the belts checked regularly for con-
dition and tension in accordance with the
maintenance schedule found in the``NISSAN Service and Maintenance
Guide''.
WDI0111
DRIVE BELTS
8-22Maintenance and do-it-yourself
ZX

WARNING
Be sure the engine and ignition switch
are off and that the parking brake is
engaged securely.
CAUTION
Be sure to use the correct socket to
remove the spark plugs. An incorrect
socket can damage the spark plugs.
REPLACING SPARK PLUGS
Platinum-tipped spark plugs
It is not necessary to replace platinum-
tipped spark plugs as frequently as conven-
tional type spark plugs because they last
much longer. Follow the maintenance
schedule, but do not reuse the spark plugs
by cleaning or regapping.
cAlways replace spark plugs with rec-
ommended or equivalent ones.1. On the 1.8L engine, disconnect the igni-
tion coil connectors. Remove the ignition
coil bolts.
2. Disconnect the spark plug cables from
the spark plugs.
When disconnecting, always hold the
boots, not the cables. Mark all cables to
identify their original locations.
3. Remove the spark plugs with a spark
plug socket.
The plug socket has a rubber seal that
holds the spark plug so it does not fall
when it is pulled out. Make sure each
spark plug is snugly fitted into the spark
plug socket.
4. Fit the new plugs, one at a time, into the
spark plug socket and install them.Use
only the specified spark plugs.Turn
each plug several full turns by hand, then
tighten with the spark plug socket to the
correct torque. Do not overtighten.
Spark plug tightening torque:
14 to 22 ft-lb (20 to 29 Nzm)
DI1229MADI1100
SPARK PLUG
Maintenance and do-it-yourself8-23
ZX

5. Holding the boot, reconnect each high
tension cable to its proper spark plug by
pushing it on until you feel a snap.
6. On the 1.8L engine, install the ignition
coil bolt.
Ignition coil bolt tightening torque:
33 to 44 in-lb (3.8 - 5.0 Nzm)
Connect the ignition coil connector.
The air cleaner filter should not be cleaned
and reused. Replace it according to the
maintenance intervals shown in the
``NISSAN Service and Maintenance Guide''.
When replacing the filter, wipe the inside of
the air cleaner housing and the cover with a
damp cloth.
WARNING
cOperating the engine with the air
cleaner removed can cause you or
others to be burned. The air cleaner
not only cleans the air, it stops theflame if the engine backfires. If it
isn't there, and the engine backfires,
you could be burned. Do not drive
with the air cleaner removed and be
careful when working on the engine
with the air cleaner removed.
cNever pour fuel into the throttle body
or attempt to start the engine with
the air cleaner removed. Doing so
could result in serious injury.
CABIN AIR FILTER (if so
equipped)
The cabin air filter restricts the entry of
airborne dust and pollen particles and re-
duces some objectionable outside odors.
The filter is located behind the glove box.
Refer to the ``NISSAN Service and Mainte-
nance Guide'' for change intervals.
To replace the filter, perform the following
procedure:
ADI0631
AIR CLEANER
8-24Maintenance and do-it-yourself
ZX

CHECKING BRAKE PEDAL
With the engine running, check the distance
between the upper surface of the pedal and
the metal floor. If it is out of the range shown
above, see an authorized NISSAN dealer.
Self-adjusting brakes
Your vehicle is equipped with self-adjusting
brakes.
The front (and rear, if equipped) disc-type
brakes self-adjust every time the brake
pedal is applied. The rear drum-type brakes
also self-adjust every time the brake pedal
is applied.If the brake pedal goes down farther than
normal, it may be due to a lack of adjust-
ment of the rear drum brakes. To adjust,
apply the parking brake several times.
WARNING
See an authorized NISSAN dealer for a
brake system check if the brake pedal
height does not return to normal.
Brake pad wear indicators
The disc brake pads on your vehicle have
an audible wear indicator. When a brake
pad requires replacement, it makes a high
pitched scraping or screeching sound when
the vehicle is in motion whether or not the
brake pedal is depressed. Have the brakes
checked as soon as possible if the wear
indicator sound is heard.
Under some driving or climate conditions,
occasional brake squeak, squeal or other
noise may be heard. Occasional brake
noise during light to moderate stops is nor-
mal and does not affect the function or
performance of the brake system.
The rear drum brakes (if so equipped) do
not have audible wear indicators. Shouldyou ever hear an unusually loud noise from
the rear drum brakes, have them inspected
as soon as possible by an authorized
NISSAN dealer.
Proper brake inspection intervals should
be followed.For more information regard-
ing brake inspections, see the appropriate
maintenance schedule information in the
``NISSAN Service and Maintenance Guide''.
BRAKE BOOSTER
Check the brake booster function as fol-
lows:
1. With the engine off, press and release
the brake pedal several times. When
brake pedal movement (distance of
travel) remains the same from one pedal
application to the next, continue on to the
next step.
2. While depressing the brake pedal, start
the engine. The pedal height should drop
a little.
3. With the brake pedal depressed, stop the
engine. Keeping the pedal depressed for
about 30 seconds, the pedal height
should not change.
DI1020M
8-30Maintenance and do-it-yourself
ZX

4. Run the engine for one minute without
depressing the brake pedal, then turn it
off. Depress the brake pedal several
times. The pedal travel distance will de-
crease gradually with each depression
as the vacuum is released from the
booster.
If the brakes do not operate properly, see an
authorized NISSAN dealer.
CHECKING CLUTCH PEDAL
Press the pedal by hand and be sure the
free travel is within the limits shown above.
If free travel is out of the range shown
above, see an authorized NISSAN dealer.
CAUTION
Never use a fuse of higher amperage
rating than specified on the fuse box
cover. This could damage the electrical
system or cause a fire.
ENGINE COMPARTMENT
If any electrical equipment does not come
on, check for an open fuse.
1. Be sure the ignition switch and the head-
light switch are OFF.
2. Open the engine hood.
WDI0045LDI0034
CLUTCH PEDAL FUSES
Maintenance and do-it-yourself8-31
ZX

HEADLIGHTS
The headlight is a semi-sealed beam type
which uses a replaceable headlight (halo-
gen) bulb. A bulb can be replaced from
inside the engine compartment without re-
moving the headlight assembly.
CAUTION
cHigh pressure halogen gas is sealed
inside the halogen bulb. The bulb
may break if the glass envelope is
scratched or the bulb is dropped.
cWhen handling the bulb, do not
touch the glass envelope.
cDO NOT TOUCH THE BULB
cUse the same number and wattage
as originally installed:
Wattage 65/55
Bulb no. 9007 (HB5)
cDo not leave the bulb out of the
headlight reflector for a long period
of time as dust, moisture, and smoke
may enter the headlight body and
affect the performance of the head-
light.
Removing the headlight bulb
1. Open the hood.
2. Disconnect the negative (-) battery cable.
3. Disconnect the electrical connector from
the rear end of the bulb.
4. Rotate the bulb retainer counterclock-
wise and remove.
5. Pull out the headlight bulb and socket as
an assembly. Do not shake or rotate the
bulb when removing it. Do not touch the
glass envelope.
Replacing the headlight bulb
1. Insert the bulb and socket assembly into
the headlight.
DO NOT TOUCH THE BULB.
2. Install and tighten the bulb retainer.
3. Push the electrical connector into the
bulb plastic base until it snaps and stops.
4. Connect the negative (-) battery cable.
5. Close the hood.
Aiming is not necessary after replacing
the bulb.
LDI0026
LIGHTS
8-36Maintenance and do-it-yourself
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