2002 NISSAN ALTIMA lock

During the normal day-to-day operation of
the vehicle, general maintenance should be
performed regularly as prescribed in this
section. If you detect any unusual sounds,
vibrations or smells, be sure to check for the
cause or have an authorized NISSAN
dealer do it promptly. In addition, you should
notify an authorized NISSAN dealer if you
think that repairs are required.
When performing any checks or mainte-
nance work, closely observe the precau-
tions in this section.
EXPLANATION OF GENERAL
MAINTENANCE ITEMS
Additional information on the following
items with ``*'' is found later in this sec-
tion.
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, including the spare, and ad-
just to the specified pressure if necessary.Check carefully for damage, cuts or exces-
sive wear.
Wheel nuts*When checking the tires, make
sure no wheel nuts are missing, and check for
any loose wheel nuts. Tighten if necessary.
Tire rotation*Tires should be rotated every
7,500 miles (12,000 km).
Wheel alignment and balanceIf the ve-
hicle should pull to either side while driving
on a straight and level road, or if you detect
uneven or abnormal tire wear, there may be
a need for wheel alignment.
If the steering wheel or seat vibrates at
normal highway speeds, wheel balancing
may be needed.
WindshieldClean the windshield on a
regular basis. Check the windshield at least
every six months for cracks or other dam-
age. Have a damaged windshield repaired
by a qualified repair facility.
Windshield wiper blades*Check for
cracks or wear if they do not wipe properly.
Doors and hoodCheck that the doors and
the hood operate properly. Also ensure that
all latches lock securely. Lubricate hinges,
latches, latch pins, rollers and links as nec-essary. Make sure that the secondary latch
keeps the hood from opening when the
primary latch is released.
When driving in areas using road salt or
other corrosive materials, check lubrication
frequently.
Lights*Clean the headlights on a regular
basis. Make sure that the headlights, stop
lights, tail lights, turn signal lights, and other
lights are all operating properly and installed
securely. Also check headlight aim.
Inside the vehicle
The maintenance items listed here should
be checked on a regular basis, such as
when performing periodic maintenance,
cleaning the vehicle, etc.
Warning lights and chimesMake sure all
warning lights and chimes are operating
properly.
Windshield wiper and washer*Check that
the wipers and washer operate properly and
that the wipers do not streak.
Windshield defrosterCheck that the air
comes out of the defroster outlets properly
and in sufficient quantity when operating the
heater or air conditioner.
GENERAL MAINTENANCE
Maintenance and do-it-yourself8-3
ZX

Steering wheelCheck for changes in the
steering conditions, such as excessive free-
play, hard steering or strange noises.
SeatsCheck seat position controls such as
seat adjusters, seatback recliner, etc. to
ensure they operate smoothly and all
latches lock securely in every position.
Check that the head restraints move up and
down smoothly and the locks (if so
equipped) hold securely in all latched posi-
tions.
Seat beltsCheck that all parts of the seat
belt system (e.g., buckles, anchors, adjust-
ers and retractors) operate properly and
smoothly, and are installed securely. Check
the belt webbing for cuts, fraying, wear or
damage.
Accelerator pedalCheck the pedal for
smooth operation and make sure the pedal
does not catch or require uneven effort.
Keep the floor mat away from the pedal.
Clutch pedal*Make sure the pedal oper-
ates smoothly and check that it has the
proper free travel.
BrakesCheck that the brakes do not pull
the vehicle to one side when applied.Brake pedal and booster*Check the pedal
for smooth operation and make sure it has
the proper distance under it when de-
pressed fully. Check the brake booster func-
tion. Be certain to keep the floor mat away
from the pedal.
Parking brake*Check that the lever has
the proper travel and confirm that your
vehicle is held securely on a fairly steep hill
with only the parking brake applied.
Automatic transmission P (Park) posi-
tion mechanismCheck that the lock re-
lease button on the selector lever operates
properly and smoothly. On a fairly steep hill
check that your vehicle is held securely with
the selector lever in the P position without
applying any brakes.
Under the hood and vehicle
The maintenance items listed here should
be checked periodically (e.g., each time you
check the engine oil or refuel).
Windshield washer fluid*Check that there
is adequate fluid in the reservoir.
Engine oil level*Check the level after
parking the vehicle on a level surface with
the engine off. Wait more than 10 minutesfor the oil to drain back into the oil pan.
Brake and clutch fluid levels*Make sure
that the brake and clutch fluid level is be-
tween the MIN and MAX lines on the reser-
voir.
Power steering fluid level* and lines
Check the level when the fluid is cold, with
the engine off. Check the lines for proper
attachment, leaks, cracks, etc.
Automatic transmission fluid level*
Check the level after putting the selector
lever in P with the engine idling at operating
temperature.
Engine coolant level*Check the coolant
level when the engine is cold.
Radiator and hosesCheck the front of the
radiator and clean off any dirt, insects,
leaves, etc., that may have accumulated.
Make sure the hoses have no cracks, de-
formation, rot or loose connections.
Engine drive belts*Make sure the drive
belts are not frayed, worn, cracked or oily.
Battery*Check the fluid level in each cell. It
should be between the MAX and MIN lines.
Vehicles operated in high temperatures or
under severe conditions require frequent
8-4Maintenance and do-it-yourself
ZX

checks of the battery fluid level.
Exhaust systemMake sure there are no
loose supports, cracks or holes. If the sound
of the exhaust seems unusual or there is a
smell of exhaust fumes, immediately have
the exhaust system inspected by an autho-
rized NISSAN dealer. See the carbon mon-
oxide warning in the ``Starting and driving''
section of this manual.
UnderbodyThe underbody is frequently
exposed to corrosive substances such as
those used on icy roads or to control dust. It
is very important to remove these sub-
stances from the underbody, otherwise rust
may form on the floor pan, frame, fuel lines
and exhaust system. At the end of winter,
the underbody should be thoroughly flushed
with plain water, in those areas where mud
and dirt may have accumulated. See the
``Appearance and care'' section of this
manual.
Fluid leaksCheck under the vehicle for
fuel, oil, water or other fluid leaks after the
vehicle has been parked for a while. Water
dripping from the air conditioner after use is
normal. If you should notice any leaks or if
gasoline fumes are evident, check for the
cause and have it corrected immediately.When performing any inspection or mainte-
nance work on your vehicle, always take
care to prevent serious accidental injury to
yourself or damage to the vehicle. The
following are general precautions which
should be closely observed.
WARNING
cPark the vehicle on a level surface,
apply the parking brake securely and
block the wheels to prevent the ve-
hicle from moving. For manual trans-
mission models, move the shift lever
to (N) Neutral. For an automatic
transmission models, move the shift
selector lever to P (Park).
cBe sure the ignition key is in the OFF
or LOCK position when performing
any parts replacement or repairs.
cYour vehicle is equipped with an
automatic engine cooling fan. It may
come on at any time without warn-
ing, even if the ignition key is in the
OFF position and the engine is not
running. To avoid injury, always dis-
connect the negative battery cable
before working near the fan.c
If you must work with the engine run-
ning, keep your hands, clothing, hair
and tools away from moving fans,
belts and any other moving parts.
cIt is advisable to secure or remove
any loose clothing and remove any
jewelry, such as rings, watches, etc.
before working on your vehicle.
cAlways wear eye protection when-
ever you work on your vehicle.
cIf you must run the engine in an
enclosed space such as a garage, be
sure there is proper ventilation for
exhaust gases to escape.
cNever get under the vehicle while it
is supported only by a jack. If it is
necessary to work under the vehicle,
support it with safety stands.
c
Keep smoking materials, flame and
sparks away from the fuel tank and
battery.
cOn gasoline engine models with the
multiport fuel injection (MFI) system,
the fuel filter or fuel lines should be
serviced by an authorized NISSAN
MAINTENANCE
PRECAUTIONS
Maintenance and do-it-yourself8-5
ZX

1. Power steering fluid reservoir
2. Spark plug caps
3. Brake fluid reservoir
4. Clutch fluid reservoir (M/T models)
5. Air cleaner
6. Battery
7. Fuse/fusible link box
8. Transmission dipstick (A/T models)
9. Engine oil dipstick
10. Radiator cap
11. Fuse block
12. Windshield washer fluid reservoir
13. Coolant reservoir
14. Engine oil filler cap
NOTE: Engine cover removed for clarity
LDI0073
ENGINE COMPARTMENT
CHECK LOCATIONS QR
ENGINE
Maintenance and do-it-yourself8-7
ZX

1. Power steering fluid reservoir
2. Engine oil filler cap
3. Brake fluid reservoir
4. Clutch fluid reservoir (M/T models)
5. Air cleaner
6. Battery
7. Fuse/fusible link box
8. Transmission dipstick (A/T models)
9. Engine oil dipstick
10. Radiator cap
11. Fuse block
12. Windshield washer fluid reservoir
13. Coolant reservoir
NOTE: Engine cover removed for clarity
LDI0074
ENGINE COMPARTMENT
CHECK LOCATIONS VQ
ENGINE
8-8Maintenance and do-it-yourself
ZX

placed. Contact an authorized NISSAN
dealer.
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 is loose,
have it replaced or adjusted by an autho-
rized NISSAN dealer.
2.
Have the belts checked regularly for condi-
tion and tension in accordance with the main-
tenance schedule found in the ``NISSAN Ser-
vice and Maintenance Guide.''
LDI0082LDI0083
DRIVE BELTS
Maintenance and do-it-yourself8-19
ZX

FRONT
PARK/TURN/SIDEMARKER
LIGHT
Bulb replacement requires the removal of
the headlight assembly. If replacement is
required, see your NISSAN dealer.
FOG LIGHTS
Replacing the fog light bulb
1. Disconnect the negative (-) battery cable.
2. Remove the two splash shield screws
(see illustration).
3. Position the splash shield aside to allow
access to the fog light bulb.
4. Disconnect the fog light electrical con-
nector.
5. Rotate the fog light bulb counterclock-
wise and pull it out of the fog light assem-
bly.
6. Follow the instructions in reverse order to
install a new bulb.
LDI0114LDI0115
Maintenance and do-it-yourself8-31
ZX

ENGINE
Model QR25DE VQ35DE
Type Gasoline, 4-cycle, DOHC Gasoline, 4-cycle, DOHC
Cylinder arrangement 4-cylinder, in-line 6-cylinder, V-block Slanted at 60É
Bore x Stroke in (mm) 3.5 x 3.9 (89.0 x 100.0) 3.760 x 3.205 (95.5 x 81.4)
Displacement cu in (cm
3) 152.56 (2,500) 151.82 (2.488) 213.45 (3,498)
Firing order 1-3-4-2 1-2-3-4-5-6
Idle speed
M/T
See the ``Emission Control label''
on the underside of the hood A/T (in ``N'' position)
Ignition timing
(degree B.T.D.C. at idle speed)
CO % at idle
Spark plugStandard PLFR5A-11 PLFR5A-11
Hot PLFR4A-11 PLFR4A-11
Cold PLFR6A-11 PLFR6A-11
Spark plug gap (Nominal) in (mm) 0.043 (1.1) 0.043 (1.1)
Camshaft operation Timing chain Timing chain
The spark ignition system of this vehicle meets all requirements of the Canadian Interference - Causing Equipment Regulations.
SPECIFICATIONS
9-8Technical and consumer information
ZX