2003 NISSAN PATHFINDER engine

not only cleans the air, it stops flame
if the engine backfires. If it is not
there, and the engine backfires, you
could be burned. Do not drive with
the air cleaner removed and be care-
ful working on the engine with the air
cleaner removed.

Never pour fuel into the throttle body
or attempt to start the engine with
the air cleaner removed. Doing so
could result in serious injury.
CLEANINGIf your windshield is not clear after using the
windshield washer of if a wiper blade chatters
when running, wax or other material may be on
the blade or windshield.
Clean the outside of the windshield with a
washer solution or a mild detergent. Your wind-
shield is clean if beads do not form when rinsing
with clear water.
Clean the blade by wiping it with a cloth soaked
in a washer solution or a mild detergent. Then
rinse the blade with clear water. If your wind-
shield is still not clear after cleaning the bladesand using the wiper, replace the blades.
REPLACINGReplace the wiper blades if they are worn.
1. Pull the wiper arm.
2. Push the lock pin, then remove the wiper
blade.
3. Insert the new wiper blade to the wiper arm
until a click sounds.
SDI0393B
DI0155MA
WINDSHIELD WIPER BLADES
8-24
Maintenance and do-it-yourself


03.1.28/R50-D/V5


CHECKING BRAKE PEDALWith the engine running, check distance A
between the upper surface of the pedal and the
dash lower panel.
Distance A
M/T models
2-1/2 in (65 mm) or more
A/T models
2-3/4 in (70 mm) or more
If it is out of the range shown above, see your
NISSAN dealer.
Self-adjusting brakesYour vehicle is equipped with self-adjusting
brakes.
The front and rear brakes self-adjust every time
the brake pedal is applied.
WARNING
See your NISSAN dealer and have it
checked if the brake pedal height does
not return to normal.Brake pad wear indicatorsThe disc brake pads on your vehicle have au-
dible wear indicators. When a brake pad re-
quires 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, occa-
sional brake squeak, squeal or other noise may
be heard. Occasional brake noise during light to
moderate stops is normal and does not affect
the function or performance of the brake system.
The rear drum brakes (if so equipped) do nothave audible wear indicators. Should you ever
hear an unusually loud noise from the rear drum
brakes, have them inspected as soon as pos-
sible by your NISSAN dealer.
Proper brake inspection intervals should
be followed.For additional information, see the
separate “Service and Maintenance Guide”.
BRAKE BOOSTERCheck the brake booster function with the fol-
lowing 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 the 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 de-
pressing the brake pedal, then turn it off.
Depress the brake pedal several times. The
pedal travel distance will decrease gradually
with each depression as the vacuum is re-
leased from the booster.
DI0453
8-26
Maintenance and do-it-yourself


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If the brakes do not operate properly, have the
brake checked by your NISSAN dealer.
ENGINE COMPARTMENT
CAUTION
Never use a fuse of higher amperage
rating than that specified on the fuse
box cover. This could damage the elec-
trical system or cause a fire.
If any electrical equipment does not operate,
check for an open fuse.
1. Be sure the ignition key and the headlight
switch are OFF.2. Open the engine hood.
3. Remove the fuse box cover.
4. Remove the fuse with the fuse puller.
5. If the fuse is open, replace it with a new fuse.
6. If a new fuse opens again, have the electrical
system checked and repaired by your
NISSAN dealer.
Fusible linksIf any 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.
SDI0395
FUSES
Maintenance and do-it-yourself
8-27


03.1.28/R50-D/V5


HEADLIGHTSThe headlight is a semi-sealed beam type which
uses a replaceable headlight (halogen) bulb. A
bulb can be replaced inside the engine compart-
ment without removing the headlight assembly.
CAUTION

High pressure halogen gas is sealed
inside the halogen bulb. The bulb
may break if the glass envelope is
scratched or the bulb is dropped.

When handling the bulb, do not touch
the glass envelope.Removing the headlight bulb1. Disconnect the battery negative cable.
2. Disconnect the electrical connector from the
rear end of the bulb.
3. Pull off the rubber cap.
4. Push and turn the retaining pin to loosen it.
5. Remove the headlight bulb. Do not shake or
rotate the bulb when removing it.6. Install the new bulb in the reverse order of
removal.
Aiming is not necessary after replacing the
bulb. When aiming adjustment is neces-
sary, contact your NISSAN dealer.
CAUTION

Do not touch the bulb.

Use the same number and wattage as
originally installed:
Wattage 60/55
Bulb No. HB2

Do not leave the bulb out of the
headlight reflector for a long period
of time as dust, moisture, and smoke
may enter the headlight body and
affect the performance of the head-
light.
SDI1126
Maintenance and do-it-yourself
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03.1.28/R50-D/V5


9 Technical and consumer informationCapacities and recommended fuel/lubricants ................ 9-2
Fuel recommendation ...................................................... 9-4
Engine oil and oil filter recommendation.................... 9-6
Recommended SAE oil viscosity number.................. 9-7
Air conditioning system refrigerant and lubricant
recommendations ............................................................. 9-8
Specifications.......................................................................... 9-9
Engine ................................................................................. 9-9
Wheels and tires ................................................................. 9-11
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 ..................................................................... 9-14Air conditioner specification label ............................. 9-14
Vehicle loading information ............................................... 9-15
Terms ................................................................................ 9-15
Determining vehicle payload capacity ...................... 9-15
Securing the load .......................................................... 9-16
Loading tips .................................................................... 9-16
Payload weight capacity .............................................. 9-17
Measurement of weights ............................................. 9-17
Towing a trailer .................................................................... 9-17
Maximum load limits ...................................................... 9-17
Towing load/specification chart ................................. 9-19
Towing safety.................................................................. 9-19
Uniform tire quality grading ......................................... 9-21
Emission control system warranty ................................... 9-22
Reporting safety defects (US only) ................................ 9-22
Readiness for inspection/maintenance (I/M) test
(US only) ................................................................................ 9-23
Owner’s Manual/Service Manual order information ... 9-25
In the event of a collision ............................................ 9-25


03.1.28/R50-D/V5


The following values are approximate capacities. The actual refill capacities may be a little different from them. When refilling, follow
the procedure instructed in the “8. Maintenance and do-it-yourself” section to determine the proper refill capacity.
Capacity (Approximate)
Recommended specifications
US
measureImp
measureLiter
Fuel 20-7/8 gal 17-3/8 gal 79Unleaded gasoline with an octane rating of
at least 91 AKI (RON 96) (VQ35DE) or
87AKI (RON 91) (VG33E)*1
Engine oil*4
Drain and refill
with oil filter
change5-1/4 qt 4-3/8 qt 5.0
API Certification Mark*2 *3

API grade SG/SH, Energy Conserving I &
II or API grade SJ, SL, Energy Conserv-
ing*2 *3

ILSAC grade GF-I, GF-II & GF-III*2 *3 without oil filter
change5-1/8 qt 4-1/4 qt 4.8
Cooling system (with
heater and reservoir
tank)9-3/4 qt 8-1/8 qt 9.2Genuine Nissan Anti-Freeze Coolant or
equivalent
*1: See later in this section for fuel recommendation.
*2: See later in this section for recommended SAE viscosity number.
*3: See later in this section for engine oil and oil filter recommendation.
*4: See “Changing engine oil” in the “8. Maintenance and do-it-yourself” section for further details.CAPACITIES AND
RECOMMENDED
FUEL/LUBRICANTS9-2
Technical and consumer information


03.1.28/R50-D/V5


FUEL RECOMMENDATIONVG33E engine:
Use unleaded regular gasoline with an oc-
tane rating of at least 87 AKI (Anti-Knock
Index) number (Research octane number
91).
VQ35DE engine:
Use unleaded regular gasoline with an oc-
tane rating of at least 87 AKI (Anti-Knock
Index) number (Research octane number
91).
For improved vehicle performance,
NISSAN recommends the use of unleaded
premium gasoline with an octane rating of
at least 91 AKI number (Research octane
number 96).
CAUTION
Using a fuel other than that specified
could adversely affect the emission con-
trol devices and systems, and could also
affect the warranty coverage.
Under no circumstances should a
leaded gasoline be used since this willdamage the three way catalyst.
Reformulated gasolineSome fuel suppliers are now producing reformu-
lated gasolines. These gasolines are specially
designed to reduce vehicle emissions. NISSAN
supports efforts towards cleaner air and suggest
that you use reformulated gasoline when avail-
able.Gasoline containing oxygenatesSome fuel suppliers sell gasoline containing
oxygenates such as ethanol, MTBE and metha-
nol with or without advertising their presence.
Nissan does not recommend the use of fuels of
which the oxygenate content and the fuel com-
patibility for your Nissan cannot be readily deter-
mined.
If you use oxygenate-blend gasoline, please take
the following precautions as the usage of such
fuels may cause vehicle performance problems
and/or fuel system damage.

The fuel should be unleaded and have
an octane rating no lower than that
recommended for unleaded gasoline.

If an oxygenate-blend, excepting a
methanol blend, is used, it should con-tain no more than 10% oxygenate.
(MTBE may, however, be added up to
15%.)

If a methanol blend is used, it should
contain no more than 5% methanol (me-
thyl alcohol, wood alcohol). It should
also contain a suitable amount of ap-
propriate cosolvents and corrosion in-
hibitors. If not properly formulated with
appropriate cosolvents and corrosion
inhibitors, such methanol blends may
cause fuel system damage and/or ve-
hicle performance problems. At this
time, sufficient data is not available to
ensure that all methanol blends are
suitable for use in Nissan vehicles.
If any undesirable driveability problems such as
engine stalling and hard hot starting are experi-
enced after using oxygenate-blend fuels, imme-
diately change to a non-oxygenate fuel or a fuel
with a low blend of MTBE.
Take care not to spill gasoline during refu-
eling. Gasoline containing oxygenates can
cause paint damage.
Aftermarket fuel additivesNISSAN does not recommend the use of any
fuel additives (i.e.: fuel injector cleaner, octane
booster, intake valve deposit removers, etc.)
9-4
Technical and consumer information


03.1.28/R50-D/V5


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 sys-
tem and engine.Octane rating tipsIn most parts of North America, you should use
unleaded gasoline with an octane rating of at
least 91 AKI (Anti-Knock Index) number
(VQ35DE engine) or 87 AKI (Anti-knock Index)
number (VG33E engine). However, you may use
unleaded gasoline with an octane rating as low
as 85 AKI (Anti-Knock Index) number in these
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 Nebraska, and
that 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 se-
vere, 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 your dealer correct the condi-tion. Failure to correct the condition is
misuse of the vehicle, for which NISSAN is
not responsible.
Incorrect ignition timing will result in knocking,
after-run or overheating. This in turn may cause
excessive fuel consumption or damage to the
engine. If any of the above symptoms are en-
countered, have your vehicle checked at a
NISSAN dealer or other competent service fa-
cility.
However, now and then you may notice
light spark knock for a short time while
accelerating or driving up hills. This is no
cause for concern, because you get the
greatest fuel benefit when there is light
spark knock for a short time.
Technical and consumer information
9-5


03.1.28/R50-D/V5