2002 NISSAN ALTIMA ignition

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

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.
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
(QR25DE)
1. Disconnect the negative battery cable.
2. Remove the coil pack bolt.
3. Remove the coil pack/spark plug boot
from the spark plug.
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 to 22 ft-lb
(20 to 29 Nzm)
6. Install the coil pack/spark plug boot on
the spark plug by pushing it on until you
feel a snap.
7. Install the coil pack bolt.
Coil pack tightening torque:
48-65 in-lb
(5.4 - 7.3 Nzm)
8. Connect the negative battery cable.
REPLACING SPARK PLUGS
(VQ35DE)
If replacement is required, see your NIS-
SAN dealer for servicing.
WDI0005
SPARK PLUGS
8-20Maintenance and do-it-yourself
ZX

ENGINE COMPARTMENT
CAUTION
Never use a fuse of a higher amperage
rating than specified on the fuse box
cover. This could damage the electrical
system or cause a fire.
If the 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.3. Remove the fuse box cover.
4. Remove the fuse with the fuse puller
located in the passenger compartment
fuse box.
5. If the fuse is open, replace it with a new
fuse.
6. If a new fuse also opens, have the elec-
trical system checked and repaired by an
authorized NISSAN dealer.
Fusible links
If the electrical equipment does not operate
and fuses are in good condition, check the
fusible links. If any of these fusible links are
melted, replace only with genuine NISSAN
parts.WDI0149
FUSES
Maintenance and do-it-yourself8-27
ZX

PASSENGER COMPARTMENT
CAUTION
Never use a fuse of a higher amperage
rating than specified on the fuse box
cover. This could damage the electrical
system or cause a fire.
If any electrical equipment does not oper-
ate, check for an open fuse.
1. Be sure the ignition switch and the head-
light switch are OFF.
2. Open the fuse box cover.3. Remove the fuse with the fuse puller.
4. If the fuse is open, replace it with a new
fuse.
5. If a new fuse also opens, have the elec-
trical system checked and repaired by an
authorized NISSAN dealer.
WDI0053
8-28Maintenance and do-it-yourself
ZX

If any driveability problems such as engine
stalling and difficult hot-starting are experi-
enced after using oxygenate-blend fuels,
immediately change to a non-oxygenate
fuel or a fuel with a low blend of MTBE.
Take care not to spill gasoline during
refueling. Gasoline containing oxygen-
ates can cause paint damage.
Aftermarket fuel additives
NISSAN does not recommend the use of
any fuel additives (i.e.: fuel injector cleaner,
octane booster, intake valve deposit remov-
ers, etc.) which are sold commercially.
Many of these additives intended for gum,
varnish or deposit removal may contain
active solvents or similar ingredients that
can be harmful to the fuel system and
engine.
Octane rating tips
In most parts of North America, you should
use unleaded gasoline with an octane rating
of at least 87 AKI (Anti-Knock Index) num-
ber. However, you may use unleaded gaso-
line with an octane rating as low as 85 AKI
(Anti-Knock Index) number in high altitude
areas [over 4,000 ft (1,219 m)] such as:
Colorado, Montana, New Mexico, Utah,Wyoming, northeastern Nevada, southern
Idaho, western South Dakota, western Ne-
braska, and the part of Texas which is
directly south of New Mexico.
Using unleaded gasoline with an octane
rating lower than stated above can cause
persistent, heavy ``spark knock.''
(``Spark knock'' is a metallic rapping
noise.) If severe, this can lead to engine
damage. If you detect a persistent heavy
spark knock even when using gasoline
of the stated octane rating, or if you hear
steady spark knock while holding a
steady speed on level roads, have an
authorized dealer correct the condition.
Failure to correct the condition is misuse
of the vehicle, for which NISSAN is not
responsible.
Incorrect ignition timing may result in spark
knock, after-run or overheating, which may
cause excessive fuel consumption or en-
gine damage. If any of the above symptoms
are encountered, have your vehicle
checked at an authorized NISSAN dealer or
other competent service facility.
However, now and then you may notice
light spark knock for a short time while
accelerating or driving up hills. This isno cause for concern, because you get
the greatest fuel benefit when there is
light spark knock for a short time under
heavy engine load.
9-4Technical and consumer information
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

Headlight and turn signal switch ............... 2-18
Heated seats.............................................. 2-24
Heater
Heater and air conditioner controls ........ 4-3
Heater operation ..................................... 4-4
Homelink Transceiver
Integrated HomeLinkTUniversal
Transceiver (If so equipped) ................ 2-35
Hood release ............................................... 3-9
Horn ........................................................... 2-23
I
Ignition switch .............................................. 5-4
Immobilizer system ..................... 2-14, 3-2, 5-6
Important vehicle information label............ 9-11
Increasing fuel economy............................ 5-16
Indicator lights and audible reminders
(See warning/indicator lights and audible
reminders) .................................................... 2-8
Inside mirror ............................................... 3-15
Instrument brightness control .................... 2-20
Integrated HomeLinkTUniversal Transceiver
(If so equipped).......................................... 2-35
Interior light ................................................ 2-34
Interior trunk lid release ............................. 3-11
J
Jump starting ...................................... 6-6, 8-18K
Key ............................................................... 3-2
Keyless entry system (See remote keyless
entry system) ............................................... 3-5
L
Labels
Air conditioner specification label ......... 9-12
Emission control information label........ 9-12
Engine serial number ........................... 9-11
F.M.V.S.S. certification label ................ 9-11
Vehicle identification number (VIN)
plate ...................................................... 9-10
Warning labels (for SRS) ..................... 1-19
License plate
Installing the license plate .................... 9-13
Light
Air bag warning light ............ 1-14, 1-19, 2-9
Bulb check/instrument panel .................. 2-8
Bulb replacement.................................. 8-32
Charge warning light .............................. 2-9
Front fog light switch ............................ 2-21
Headlight and turn signal switch .......... 2-18
Interior light ........................................... 2-34
Low washer fluid warning light ............. 2-10
Spotlights (See map light) .................... 2-34
Trunk light ............................................. 2-35
Warning/indicator lights and audible
reminders ................................................ 2-8Lock
Child safety rear door lock ..................... 3-4
Door locks............................................... 3-2
Fuel filler lid lock opener lever ............. 3-12
Glove box lock ...................................... 2-28
Power door locks .................................... 3-3
Trunk lid lock opener lever ................... 3-10
M
Maintenance
General maintenance ............................. 8-3
Maintenance precautions ................ 8-2, 8-5
Outside the vehicle ................................. 8-3
Seat belt maintenance.......................... 1-28
Under the hood and vehicle ................... 8-4
Malfunction indicator lamp (MIL) ............... 2-11
Map lights .................................................. 2-34
Meters and gauges .............................. 2-2, 2-3
Mirror
Inside mirror.......................................... 3-15
Outside mirror control ........................... 3-16
Vanity mirror ......................................... 3-14
Multi-remote control system (See remote
keyless entry system) .................................. 3-5
Multi-remote controller battery
replacement ............................................... 8-29
N
Nissan vehicle immobilizer system
(NVIS) ......................................... 2-13, 3-2, 5-6
10-3
ZX

Tilting steering wheel............................ 3-13
Storage ...................................................... 2-26
Sunglasses case........................................ 2-26
Sunroof ...................................................... 2-33
Supplemental restraint system
Information and warning labels ............ 1-19
Supplemental restraint system
(Supplemental air bag system).................... 1-8
Switch
Autolamp switch ................................... 2-20
Automatic power window switch .......... 2-32
Front fog light switch ............................ 2-21
Hazard warning flasher switch ............. 2-23
Headlight and turn signal switch .......... 2-18
Ignition switch ......................................... 5-4
Rear window defogger switch .............. 2-17
Windshield wiper and washer switch ... 2-17
T
Tachometer .................................................. 2-6
Three-way catalyst....................................... 5-2
Tilting steering wheel ................................. 3-13
Tire
Flat tire.................................................... 6-2
Spare tire....................................... 6-5, 8-42
Tire chains ............................................ 8-39
Tire placard........................................... 9-12
Tire pressure ............................... 8-38, 9-16
Tire rotation .......................................... 8-40
Uniform tire quality grading .................. 9-18
Wheels and tires................................... 8-38Wheel/tire size ........................................ 9-9
Towing
Tow truck towing .................................... 6-9
Towing load/specification chart ............ 9-16
Trailer towing ........................................ 9-15
Transmission
Automatic transmission fluid (ATF) ...... 8-14
Driving with automatic transmission ....... 5-4
Driving with manual transmission ........... 5-5
Travel (See registering your vehicle in
another country)......................................... 9-10
Trip odometer .............................................. 2-3
Trunk access through the rear seat ............ 1-6
Trunk lid lock opener lever ........................ 3-10
Trunk light .................................................. 2-35
Turn signal switch (See headlight and turn
signal switch) .................................... 2-18, 2-21
U
Uniform tire quality grading ....................... 9-18
V
Vanity mirror .............................................. 3-14
Vehicle dimensions and weights ................. 9-9
Vehicle identification .................................. 9-10
Vehicle identification number (VIN)
(chassis number) ....................................... 9-10
Vehicle identification number (VIN)
plate ........................................................... 9-10Vehicle loading information ....................... 9-13
Vehicle recovery ........................................ 6-11
Vehicle security system ............................. 2-14
Ventilators .................................................... 4-2
W
Warning
Air bag warning light ............ 1-14, 1-19, 2-9
Hazard warning flasher switch ............. 2-23
Vehicle security system ........................ 2-14
Warning labels (for SRS) ..................... 1-19
Warning/indicator lights and audible
reminders ................................................ 2-8
Weights (See dimensions and weights) ...... 9-9
Wheels and tires ........................................ 8-38
Wheel/tire size ............................................. 9-9
When traveling or registering your vehicle
in another country ...................................... 9-10
Window washer fluid.................................. 8-17
Windows
Locking passengers' windows .............. 2-32
Power windows..................................... 2-31
Windshield wiper and washer switch ........ 2-17
Wiper
Windshield wiper and washer switch ... 2-17
Wiper blades......................................... 8-24
10-5
ZX