2002 NISSAN FRONTIER service

Spark plug tightening torque:
14 to 22 ft-lb (20 to 29 Nzm)
4. Reconnect the spark plug cables to their
original positions.
REPLACING SPARK PLUGS (with
supercharger)
Please see your authorized NISSAN dealer
for assistance.
The filter element should not be cleaned
and reused as it is given a special treat-
ment. We recommend it be replaced ac-
cording 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 flame
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.
ADI1079WDI0097
AIR CLEANER
Maintenance and do-it-yourself8-23
ZX

Distance A:
Manual
TransmissionAutomatic
Transmission
Rear
Wheel ABS4 1/8 in.
(105mm)4 1/2 in.
(115mm)
Four Wheel
ABS4 in.
(100mm)4 1/4 in.
(110mm)
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 disc-type brakes self-adjust every
time the brake pedal is applied. The rear
drum-type brakes on two-wheel drive trucks
self-adjust every time the parking brake is
applied. The rear drum-type brakes on four-
wheel drive trucks 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 adjustment of the rear drum
brakes. Apply the parking brake several
times.
WARNING
If the brake pedal height does not re-
turn to normal, see an authorized
NISSAN dealer and have it checked.
Brake pad wear indicators
The disc brake pads on your vehicle have
audible wear indicators. When a brake pad
requires replacement, it will make 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. Should
you 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 with the
following steps:
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
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.
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-
Maintenance and do-it-yourself
8-27
ZX

Tire wear and damage
WARNING
cTires should be periodically in-
spected for wear, cracking, bulging
or objects caught in the tread. If
excessive wear, cracks, bulging or
deep cuts are found, the tire(s)
should be replaced.
cThe original tires have a built-in
tread wear indicator. When the wear
indicators are visible, the tire(s)
should be replaced.cImproper service of the spare tire
may result in serious personal in-
jury. If it is necessary to repair the
spare tire, contact an authorized
NISSAN dealer.
cFor additional information regarding
tires, refer to ``Important Tire Safety
Information'' in the Warranty Infor-
mation Booklet (US) or ``Tire Safety
Information'' in the Warranty and
Roadside Assistance Information
booklet (Canada).
Replacing tires and wheels
When replacing a tire, use the same size,
tread design, speed rating and load carrying
capacity as originally equipped. Recom-
mended types and sizes are shown in
``Wheel/tire size'' in the ``Technical and con-
sumer information'' section of this manual.
WARNING
c
The use of tires other than those
recommended or the mixed use of
tires of different brands, construction
(bias, bias-belted or radial), or tread
patterns can adversely affect the ride,braking, handling, ground clearance,
body-to-tire clearance, tire chain
clearance, speedometer calibration,
headlight aim and bumper height.
Some of these effects may lead to
accidents and could result in serious
personal injury.
cIf the wheels are changed for any
reason, always replace with wheels
which have the same offset dimen-
sion. Wheels of a different offset
could cause premature tire wear, de-
grade vehicle handling characteris-
tics and/or interference with the
brake discs/drums. Such interfer-
ence can lead to decreased braking
efficiency and/or early brake
pad/shoe wear. Refer to(Wheel/tire
size(in the(Technical and consumer
information(section of this manual
for wheel off-set dimensions.
cDo not install a deformed wheel or
tire even if it has been repaired. Such
wheels or tires could have unknown
structural damage and could fail
without warning.
MDI0004
Maintenance and do-it-yourself8-41
ZX

cThe use of retread tires is not recom-
mended.
cFor additional information regarding
tires, refer to ``Important Tire Safety
Information'' in the Warranty Infor-
mation Booklet (US) or ``Tire Safety
Information'' in the Warranty and
Roadside Assistance Information
booklet (Canada).
Four-wheel drive models
CAUTION
Always use tires of the same size,
brand, construction (bias, bias-belted
or radial), and tread pattern on all four
wheels. Failure to do so may result in a
circumference difference between tires
on the front and rear axles which will
cause excessive tire wear and may
damage the transmission, transfer
case and differential gears.
If excessive tire wear is found, it is recom-
mended that all four tires be replaced with
tires of the same size, brand, construction
and tread pattern. The tire pressure andwheel alignment should also be checked
and corrected as necessary. Contact an
authorized NISSAN dealer.
Wheel balance
Unbalanced wheels may affect vehicle han-
dling and tire life. Even with regular use,
wheels can get out of balance. Therefore,
they should be balanced as required.
Wheel balance service should be performed
with the wheels off the vehicle. Spin balanc-
ing the front wheels on the vehicle could
lead to transmission damage.
cFor additional information regarding tires,
refer to ``Important Tire Safety Informa-
tion'' in the Warranty Information Booklet
(US) or ``Tire Safety Information'' in the
Warranty and Roadside Assistance Infor-
mation booklet (Canada).
Care of wheels
cWash the wheels when washing the ve-
hicle to maintain their appearance.
cClean the inner side of the wheels when
the wheel is changed or the underside of
the vehicle is washed.cDo not use abrasive cleaners when
washing the wheels.
cInspect wheel rims regularly for dents or
corrosion. This may cause loss of pres-
sure or damage the tire bead.
cNISSAN recommends waxing the road
wheels to protect against road salt in
areas where it is used during winter.
Spare tire (TEMPORARY USE
ONLY)
Your vehicle may be equipped with a TEM-
PORARY USE ONLY spare tire.
To avoid property damage or personal injury
when using the TEMPORARY USE ONLY
spare tire, observe the following cautions:
WARNING
cThe spare tire should be used for
emergency use only. It should be
replaced with the standard tire at the
first opportunity to avoid possible
tire or differential damage.
cDrive carefully while the TEMPO-
RARY USE ONLY spare tire is in-
stalled. Avoid sharp turns and
abrupt braking while driving.
8-42Maintenance and do-it-yourself
ZX

9 Technical and consumer information
Capacities and recommended fuel/lubricants ........9-2
Fuel recommendation ........................................9-4
Engine oil and oil filter recommendation ...........9-6
Recommended SAE viscosity number ..............9-7
Air conditioner system refrigerant and
lubricant recommendations ...............................9-8
Specifications .........................................................9-9
Engine ...............................................................9-9
Wheels and tires..............................................9-10
Dimensions and weights .................................9-11
When traveling or registering your vehicle in
another country ....................................................9-12
Vehicle identification ............................................9-12
Vehicle identification number (VIN)
plate .................................................................9-12
Vehicle identification number
(chassis number) .............................................9-12
Engine serial number ......................................9-13
F.M.V.S.S. certification label ...........................9-13
Emission control information label ..................9-14
Tire placard......................................................9-14
Air conditioner specification label ....................9-14Installing front license plate..................................9-15
Vehicle loading information ..................................9-15
Terms...............................................................9-15
Determining vehicle payload capacity .............9-16
Securing the load ............................................9-16
Loading tips .....................................................9-17
Truck-camper loading information........................9-17
Payload weight capacity ..................................9-19
Measurement of weights .................................9-21
Towing a trailer.....................................................9-21
Maximum load limits ........................................9-21
Towing load/specification chart .......................9-23
Towing safety ..................................................9-24
Uniform tire quality grading ..................................9-26
Emission control system warranty .......................9-27
Reporting safety defects (US only) ......................9-28
Readiness for inspection/maintenance (I/M)
test (US only) .......................................................9-28
Owner's manual/service manual order
information ............................................................9-30
In the event of a collision ................................9-31
ZX

FUEL RECOMMENDATION
(except Supercharger)
Your vehicle is designed to operate on
unleaded gasoline with an octane rating
of at least 87 AKI (Anti-Knock Index)
(Research octane number 91).
(Supercharger)
Use unleaded premium gasoline with an
octane rating of at least 91 AKI (Anti-Knock
Index) number (Research octane number
96).
If unleaded premium gasoline is not
available, unleaded regular gasoline with
an octane rating of at least 87 AKI (Re-
search octane number 91) can be used,
but only under the following precau-
tions:
cHave the fuel tank filled only partially with
unleaded regular gasoline, and fill up
with unleaded premium as soon as pos-
sible.
cAvoid full throttle driving and abrupt ac-
celeration.
CAUTION
cUsing a fuel other than that specified
could adversely affect the emission
control system, and may also affect
the warranty coverage.
cUnder no circumstances should a
leaded gasoline be used, since this
will damage the three-way catalyst.
Reformulated Gasoline
Some fuel suppliers are now producing re-
formulated gasolines. These gasolines are
specially designed to reduce vehicle emis-
sions. NISSAN supports efforts towards
cleaner air and suggests that you use refor-
mulated gasoline when available.
Gasoline containing oxygenates
Some fuel suppliers sell gasoline containing
oxygenates such as ethanol, MTBE and
methanol with or without advertising their
presence. Nissan does not recommend the
use of fuels of which the oxygenate content
and the fuel compatibility for your NISSAN
cannot be readily determined. If in doubt,
ask your service station manager.If you use oxygenate-blend gasoline, please
take the following precautions as the usage
of such fuels may cause vehicle perfor-
mance problems and/or fuel system dam-
age.
cThe fuel should be unleaded and
have an octane rating no lower than
that recommended for unleaded
gasoline.
cIf an oxygenate-blend, excepting a
methanol blend, is used, it should
contain no more than 10% oxygenate.
(MTBE may, however, be added up to
15%.)
c
If a methanol blend is used, it should
contain no more than 5% methanol
(methyl alcohol, wood alcohol). It
should also contain a suitable
amount of appropriate cosolvents
and corrosion inhibitors. If not prop-
erly formulated with appropriate co-
solvents and corrosion inhibitors,
such methanol blends may cause fuel
system damage and/or vehicle perfor-
mance problems. At this time, suffi-
cient data is not available to ensure
that all methanol blends are suitable
for use in NISSAN vehicles.
9-4Technical and consumer information
ZX

c80W-90 for the differential and 75W-90
for the transfer case are preferable for
ambient temperatures below 104ÉF
(40ÉC).
AIR CONDITIONER SYSTEM
REFRIGERANT AND LUBRICANT
RECOMMENDATIONS
The air conditioner system in this NIS-
SAN vehicle must be charged with the
refrigerant HFC-134a (R-134a) and the
lubricant, NISSAN A/C system lubricant
PAG Type R or the exact equivalents.
CAUTION
The use of any other refrigerant or
lubricant will cause severe damage to
the air conditioning system and will
require the replacement of all air con-
ditioner system components.
The refrigerant HFC-134a (R-134a) in your
NISSAN vehicle does not harm the earth's
ozone layer. Although this refrigerant does
not affect the earth's atmosphere, certain
government regulations require the recov-
ery and recycling of any refrigerant during
automotive air conditioner system service.
An authorized NISSAN dealer has the
trained technicians and equipment needed
to recover and recycle your air conditioner
system refrigerant.Contact an authorized NISSAN dealer when
servicing your air conditioner system.
ATI0510
9-8Technical and consumer information
ZX

ENGINE
Model KA24DE VG33E/VG33ER
Type Gasoline, 4-cycle Gasoline, 4-cycle
Cylinder arrangement 4-cylinder in-line 6-cylinder, V-slanted at 60
É
Bore ý Stroke in (mm) 3.504 ý 3.780 (89.0 ý 96.0) 3.602 x 3.268 (91.5 x 83.0)
Displacement cu in (cm3) 145.78 (2,389) 199.84 (3,275)
Firing order 1-3-4-2 1-2-3-4-5-6
Idle speed rpm
See the ``Emission Control Label'' on the underside of the hood. Ignition timing degree (BTDC)
at idle speed degree/rpm
CO percentage at idle speed [No air] %
Spark plugPFR5G-11 (Standard) *1
PFR6G-11 (Cold) *1(except Supercharger)
PFR5G-11 (Standard) *1
PFR6G-11 (Cold) *1
PFR4G-11 (Hot) *1(Supercharger)
PFR6G-11 (Standard) *1
PFR7G-11 (Cold) *1
PFR5G-11 (Hot) *1
Spark plug gap Nominal: in (mm) 0.043 (1.1) 0.043 (1.1)
Camshaft operation Timing chain Timing belt *2
Generator belt size
Width ý Length in (mm) 0.413 x 35.63 (10.5 x 905) 0.701 x 31.69 (17.8 x 805)
*1: Always check with the Parts Department at an authorized NISSAN dealer for the latest parts information.
*2: Periodic maintenance is necessary. See9Periodic maintenance schedules9in the9NISSAN Service and Maintenance Guide.9
The spark ignition system of this vehicle meets all requirements of the Canadian Interference Ð Causing Equipment
Regulations.
SPECIFICATIONS
Technical and consumer information9-9
ZX