2002 NISSAN FRONTIER engine service

JUMP STARTING
If jump starting is necessary, see ``Jump
starting'' in the ``In case of emergency''
section. If the engine does not start by jump
starting, the battery may have to be re-
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 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.''
ADI1073
DRIVE BELTS
8-20Maintenance and do-it-yourself
ZX

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

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

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

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 con-
dition.
cAlways secure items in the trailer to
prevent load shift while driving.
cBe certain your outside mirrors conform
to all federal, state or local regulations. If
not, install any mirrors required for tow-
ing before driving the vehicle.
Trailer towing tips
In order to gain skill and an understanding
of the vehicle's behavior, you should prac-
tice turning, stopping and backing up in an
area which is free from traffic. Steering,
stability and braking performance will be
somewhat different than under normal driv-
ing conditions.
cAlways secure items in the trailer to
prevent load shift while driving.
c
Avoid 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 automatic transmission,
first block the wheels and apply the
parking brake, and then move the trans-
mission shift selector lever into the P
(Park) position. If you move the shift
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 ascending a long grade, down-
shift the transmission 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 ex-
tremely high temperature when the air
conditioning system is on, turn off the air
conditioner. Coolant heat can be addi-tionally vented by opening the windows,
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 recom-
mended Maintenance Schedule.
cWhen making a turn, your trailer wheels
will be closer to the inside of the turn
than your vehicle wheels. To compen-
sate for this, make a larger than normal
turning radius during the turn.
cCrosswinds and rough roads adversely
affect vehicle/trailer handling, possibly
causing vehicle sway. When being
passed by larger vehicles, be prepared
for possible changes in crosswinds that
could affect vehicle handling. If swaying
does occur, firmly grip the steering
wheel, steer straight ahead, and imme-
diately (but gradually) reduce vehicle
speed. This combination helps to stabi-
lize the vehicle. Never increase speed.
Technical and consumer information
9-25
ZX

cBe careful when passing other vehicles.
Passing while towing a trailer requires
considerably more distance than normal
passing. Remember the length of the
trailer must also pass the other vehicle
before you can safely change lanes.
cTo maintain engine braking efficiency
and electrical charging performance, do
not use fifth gear (manual transmission)
or overdrive (automatic transmission).
cAvoid holding the brake pedal down too
long or too frequently. This could cause
the brakes to overheat, resulting in re-
duced braking efficiency.
When towing a trailer, change oil in the
transmission more frequently. For addi-
tional information see the ``Maintenance
and do-it-yourself'' section earlier in this
manual.DOT (Department of Transportation) Qual-
ity Grades: All passenger car tires must
conform to Federal Safety Requirements in
addition to these grades.
Quality grades can be found where appli-
cable on the tire sidewall between tread
shoulder and maximum section width. For
example:
Treadwear 200 Traction AA Temperature A
Treadwear
Treadwear grade is a comparative rating
based on tire wear rate when tested under
controlled conditions on specified govern-
ment test courses. For example, a tire
graded 150 would wear one and a half
(1-1/2) times as well on the government
course as a tire graded 100. However,
relative tire performance depends on actual
driving conditions, and may vary signifi-
cantly due to variations in driving habits,
service practices and differences in road
characteristics and climate.
Traction AA, A, B and C
The traction grades from highest to lowest
are AA, A, B, and C. Those grades repre-
sent the tire's ability to stop on wet pave-
ment as measured under controlled condi-tions on specified government test surfaces
of asphalt and concrete. A tire marked C
may have poor traction performance.
WARNING
The traction grade assigned to your ve-
hicle tires is based on straight-ahead
braking traction tests, and does not in-
clude acceleration, cornering, hydro-
planing, or peak traction characteristics.
Temperature A, B and C
Temperature grades are A (the highest), B,
and C. They represent a tire's resistance to
heat build-up, and its ability to dissipate
heat when tested under controlled condi-
tions on a specified indoor laboratory test
wheel. Sustained high temperature can
cause tire material to degenerate, reducing
tire life. Excessive temperatures can lead to
sudden tire failure. Grade C corresponds to
a performance level which all passenger car
tires must meet under the Federal Motor
Vehicle Safety Standard No. 109. Grades A
and B represent higher levels of perfor-
mance on laboratory test wheels than the
minimum required by law.
UNIFORM TIRE QUALITY
GRADING
9-26Technical and consumer information
ZX

Overheat
If your vehicle overheats ...................... 6-10
Owner's manual order form ....................... 9-30
P
Parking
Parking brake check ............................. 8-26
Parking brake operation ....................... 5-16
Parking/parking on hills ........................ 5-24
Passenger supplemental air bag ON/OFF
switch and light
Passenger supplemental air bag
ON/OFF switch and light ...................... 1-13
Power
Power door locks .................................... 3-3
Power steering fluid .............................. 8-17
Power steering system ......................... 5-25
Power windows..................................... 2-27
Precautions
Maintenance precautions ....................... 8-5
On-pavement and off-road driving
precautions ............................................. 5-3
Precautions on seat belt usage............ 1-18
Precautions when starting and driving ... 5-2
Push starting ................................................ 6-9
R
Radio
Car phone or CB radio ......................... 4-32FM-AM radio with cassette player and
compact disc (CD) player ..................... 4-13
FM-AM radio with compact disc (CD)
changer ................................................. 4-18
Steering wheel audio control switch ..... 4-31
Readiness for inspection maintenance
(I/M) test..................................................... 9-28
Rear sliding window................................... 2-29
Rear window defogger switch ................... 2-19
Registering your vehicle in another
country ....................................................... 9-12
Remote keyless entry system .................... 3-4
Reporting safety defects (USA) ................. 9-28
Roof rack (see luggage rack) ...................... 3-9
S
Safety
Reporting safety defects (USA) ............ 9-28
Seat
Jump seat ............................................... 1-5
Seat belt
Precautions on seat belt usage............ 1-18
Seat belt extenders .............................. 1-26
Seat belt maintenance.......................... 1-26
Seat belts.............................................. 1-18
Three-point type with retractor ............. 1-21
Two-point type without retractor ........... 1-24
Seat belt warning light ............................... 2-13
Seats
Adjustment .............................................. 1-2
Separate seats ....................................... 1-2Service manual order form ........................ 9-30
Shifting
Automatic transmission ........................ 5-10
Manual transmission............................. 5-15
Spark plug replacement............................. 8-21
Speedometer ............................................... 2-3
Spotlights (See map light) ......................... 2-33
SRS warning label ..................................... 1-16
Starting
Before starting the engine ...................... 5-8
Jump starting .......................................... 6-8
Precautions when starting and driving ... 5-2
Push starting........................................... 6-9
Starting the engine ................................. 5-8
Steering
Power steering fluid .............................. 8-17
Power steering system ......................... 5-25
Tilting steering wheel............................ 3-12
Steering wheel audio control switch .......... 4-31
Step rail...................................................... 3-11
Stop light .................................................... 8-35
Sun shade.................................................. 2-31
Sunroof ...................................................... 2-30
Supplemental restraint system
(Supplemental air bag system).................... 1-6
Switch
Automatic power window switch .......... 2-29
Hazard warning flasher switch ............. 2-22
Headlight and turn signal switch .......... 2-20
Overdrive switch.......................... 5-13, 5-14
Passenger supplemental air bag
ON/OFF switch and light ...................... 1-13
10-4
ZX