2003 NISSAN SENTRA service schedule

Your new NISSAN has been designed to have
minimum maintenance requirements with longer
service intervals to save you both time and
money. However, some day-to-day and regular
maintenance is essential to maintain your NIS-
SAN’s good mechanical condition, as well as its
emission and engine performance.
It is the owner’s responsibility to make sure that
the scheduled maintenance, as well as general
maintenance, is performed.
As the vehicle owner, you are the only one who
can ensure that your vehicle receives proper
maintenance. You are a vital link in the mainte-
nance chain.
Scheduled maintenance
For your convenience, both required and optional
scheduled maintenance items are described and
listed in your “NISSAN Service and Maintenance
Guide.” You must refer to that guide to ensure
that necessary maintenance is performed on your
NISSAN at regular intervals.
General maintenance
General maintenance includes those items which
should be checked during normal day-to-day op-
eration of the vehicle. They are essential if your
vehicle is to continue to operate properly. It is
your responsibility to perform these maintenance
procedures regularly as prescribed.Performing general maintenance checks requires
minimal mechanical skill and only a few general
automotive tools.
These checks or inspections can be done by you,
a qualified technician, or, if you prefer, a NISSAN
dealer.
Where to go for service
If maintenance service is required or your vehicle
appears to malfunction, have the systems
checked and corrected by a NISSAN dealer.
NISSAN technicians are well-trained specialists
who are kept up-to-date with the latest service
information through technical bulletins, service
tips, and in-dealership training programs. They
are completely qualified to work on NISSAN ve-
hiclesbeforethey work on your vehicle, rather
than after they have worked on it.
You can be confident that a NISSAN dealer’s
service department performs the best job to meet
the maintenance requirements on your vehicle —
in a reliable and economic way.During the normal day-to-day operation of the
vehicle, general maintenance should be per-
formed regularly as prescribed in this section. If
you detect any unusual sounds, vibrations or
smells, be sure to check for the cause or have a
NISSAN dealer do it promptly. In addition, you
should notify a NISSAN dealer if you think that
repairs are required.
When performing any checks or maintenance
work, closely observe the “Maintenance precau-
tions” later in this section.
EXPLANATION OF GENERAL
MAINTENANCE ITEMS
Additional information on the following
items with “*” is found later in this section.
Outside the vehicle
The maintenance items listed here should be
performed from time to time, unless otherwise
specified.
Tires*Check the pressure with a gauge at least
once a month and always prior to long distance
trips. If necessary, adjust the pressure in all tires,
including the spare, to the pressure specified.
Check carefully for damage, cuts or excessive
wear.
MAINTENANCE REQUIREMENTS GENERAL MAINTENANCE
8-2Maintenance and do-it-yourself
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1. Visually inspect each belt for signs of un-
usual wear, cuts, fraying or looseness. If the
belt is in poor condition or is loose, have it
replaced or adjusted by a NISSAN dealer.
2. Have the belts checked regularly for condi-
tion and tension in accordance with the
maintenance schedule found in the
“NISSAN Service and Maintenance Guide”.
1. Power steering fluid pump
2. Water pump
3. Generator
4. A/C compressor
5. Crankshaft pulley
6. Auto tensionerREPLACING SPARK PLUGS
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 re-
move the spark plugs. An incorrect socket
can damage the spark plugs.
QR25DE engine
WDI0192WDI0193
SPARK PLUGS
Maintenance and do-it-yourself8-23
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Platinum-tipped spark plugs
It is not necessary to replace platinum-tipped
spark plugs as frequently as conventional type
spark plugs because they last much longer. Fol-
low the maintenance schedule, but do not reuse
the spark plugs by cleaning or regapping.
cAlways replace spark plugs with recom-
mended or equivalent ones.
1. Remove the engine cover.
2. Disconnect the ignition coil connectors. Re-
move the ignition coil bolts.
3. 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 loca-
tions.
4. 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.
5. 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 - 22 ft-lb (20 - 29 N·m)
6. Holding the boot, reconnect each high ten-
sion cable to its proper spark plug by push-
ing it on until you feel a snap.
7. Iinstall the ignition coil bolts.
Ignition coil bolt tightening torque:
33 - 44 in-lb (3.8 - 5.0 N·m)
Connect the ignition coil connector.
8. Install the engine cover.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 filter housing
and the cover with a damp cloth.
WDI0005ADI0631
AIR CLEANER
8-24Maintenance and do-it-yourself
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to the vehicle bumper or axle. Be sure to leave
enough slack in the chains to permit turning
corners.
Trailer lights
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.
Trailer brakes
If your trailer is equipped with a braking system,
make sure it conforms to federal and/or local
regulations and that it is properly installed.
WARNING
Never connect a trailer brake system di-
rectly to the vehicle brake system.
Pre-towing tips
cBe certain your vehicle maintains a level posi-
tion when a loaded and/or unloaded trailer is
hitched. Do not drive the vehicle if it has an
abnormal nose-up or nose-down condition;
check for improper tongue load, overload,
worn suspension or other possible causes of
either condition.
cAlways secure items in the trailer to prevent
load shift while driving.cBe certain your rear view mirrors conform to all
federal, state or local regulations. If not, install
any mirrors required for towing before driving
the vehicle.
Trailer towing tips
In 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 perfor-
mance will be somewhat different than under
normal driving conditions.
cAlways secure items in the trailer to prevent
load shift while driving.
cAvoid abrupt starts, acceleration or stops.
cAvoid sharp turns or lane changes.
cAlways drive your vehicle at a moderate speed.
cAlways 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 your vehicle is equipped with an auto-
matic transmission, first block the wheels and
apply the parking brake, and then move the
transmission shift selector lever into the P
(Park) position. If you move the shift selector
lever to the P (Park) position before blocking
the wheels and applying the parking brake,
transmission damage could occur.cWhen going down a hill, shift into a lower gear
and use the engine braking effect. When go-
ing up a long grade, downshift the transmis-
sion to a lower gear and reduce speed to
reduce chances of engine overloading and/or
overheating. However, for long steep grades,
do not stay in 1st or 2nd gear when driving
above 35 MPH (56 km/h) .
cIf the engine coolant rises to an extremely high
temperature when the air conditioner system
is on, turn off the air conditioner. Coolant heat
can be additionally vented by opening the win-
dows, switching the fan control to high and
setting the temperature control to the HOT
position.
cTrailer towing requires more fuel than normal
circumstances.
cAvoid towing a trailer for your vehicle’s first
500 miles (805 km) .
cHave your vehicle serviced more often than at
intervals specified in the recommended Main-
tenance Schedule in the “NISSAN Service
and Maintenance Guide”.
cWhen making a turn, your trailer wheels will be
closer to the inside of the turn than your vehicle
wheels. To compensate for this, make a larger
than normal turning radius during the turn.
9-16Technical and consumer information
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10 Index
A
Air bag (See supplemental restraint
system)......................1-6
Air bag warning light...........1-17, 2-9
Air cleaner housing filter............8-24
Air conditioner
Air conditioner operation...........4-5
Air conditioner service............4-9
Air conditioner specification label.....9-11
Air conditioner system refrigerant and
lubrication recommendations........9-6
Heater and air conditioner controls.....4-2
Servicing air conditioner...........4-9
Air flow charts..................4-6
Alarm system
(See vehicle security system).........2-11
Anchor point locations.............1-35
Antenna.....................4-19
Anti-lock brake system (ABS).........5-18
Anti-lock brake warning light..........2-7
Audible reminders................2-10
Audio system..................4-10
Compact Disc (CD) changer.......4-17
Compact disc (CD) player.........4-15
FM-AM radio with compact disc (CD)
player....................4-12
Radio....................4-10
Automatic
Automatic power window switch.....2-25
Automatic transmission fluid (ATF). . . .8-15Driving with automatic transmission.....5-7
Transmission selector lever lock release . .5-9
B
Battery......................8-20
Charge warning light.............2-8
Battery replacement
(See remote keyless entry system).......3-8
Before starting the engine............5-6
Belts (See drive belts).............8-22
Brake
Anti-lock brake system (ABS).......5-18
Brake booster................8-30
Brake fluid..................8-18
Brake light (See stop light).........8-36
Brake pedal.................8-29
Brake system................5-18
Brake warning light..............2-7
Brake wear indicators........2-10, 8-30
Parking brake check............8-29
Parking brake operation..........5-13
Self-adjusting brakes............8-30
Break-in schedule................5-15
Bulb check/instrument panel..........2-7
Bulb replacement................8-36
C
Capacities and recommended fuel/lubricants. .9-2Car phone or CB radio.............4-19
Cargo (See vehicle loading information) . . .9-12
CD changer (See audio system)........4-17
CD player (See audio system).........4-15
Check engine indicator light
(See malfunction indicator light).........2-9
Child restraint with top tether strap......1-34
Child restraints.......1-20, 1-21, 1-25, 1-33
Precautions on child restraints.......1-25
Child safety rear door lock............3-5
Chimes, audible reminders...........2-10
Cleaning exterior and interior..........7-2
Clock......................4-13
Clutch
Clutch fluid.................8-19
Coin box.....................2-22
Cold weather driving..............5-20
Compact disc (CD) player...........4-15
Console box...................2-23
Controls
Heater and air conditioner controls.....4-2
Coolant
Capacities and recommended
fuel/lubricants.................9-2
Changing engine coolant..........8-10
Checking engine coolant level........8-9
Engine coolant temperature gauge.....2-5
Corrosion protection...............7-5
Cruise control..................5-13
Cup holders...................2-21
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Owners Manual(owners)ÐUSA English(nna)
12/20/02Ðcathy
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