engine NISSAN XTERRA 2002 WD22 / 1.G Repair Manual

1. Fuse/fusible link holder
2. Power steering fluid reservoir
3. Automatic transmission fluid dipstick (A/T
model)
4. Supercharger
5. Brake fluid reservoir
6. Air cleaner
7. Windshield washer fluid reservoir
8. Engine oil dipstick
9. Radiator cap
10. Engine oil filler cap
11. Coolant reservoir
12. Battery
WDI0089
Maintenance and do-it-yourself8-9
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The engine cooling system is filled at the
factory with a high-quality, year-round,
genuine NISSAN anti-freeze coolant solu-
tion. The anti-freeze solution contains rust
and corrosion inhibitors, therefore additional
engine cooling system additives are not
necessary.
CAUTION
When adding or replacing coolant, be
sure to use only an ethylene glycol
anti-freeze with the proper mixture ratio
of 50% Genuine Nissan Anti-freeze
coolant or equivalent and 50% de-
mineralized or distilled water. The use
of other types of coolant solutions may
damage the engine cooling system.
Outside tempera-
ture down toGenuine
Nissan
Anti-
freeze
coolant or
equivalentDeminer-
alized or
Distilled
water
ÉC ÉF
þ35 þ30 50% 50%
WARNING
ONever remove the radiator cap when
the engine is hot. Wait until the en-
gine and radiator cool down. Serious
burns could be caused by high pres-
sure fluid escaping from the radiator.
See precautions in ``If your vehicle
overheats'' found in the ``In case of
emergency'' section of this manual.
OThe radiator is equipped with a pres-
sure type radiator cap. To prevent
engine damage, use only a genuine
NISSAN radiator cap.
CHECKING ENGINE COOLANT
LEVEL
Check the coolant level in the reservoir tank
when the engine is cold. If the coolant level
is below the MIN level, add coolant to the
MAX level. If the reservoir tank is empty,
check the coolant level in the radiatorwhen
the engine is cold.If there is insufficient
coolant in the radiator, fill the radiator with
coolant up to the filler opening and also add
it to the reservoir tank up to the MAX level.
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ENGINE COOLING SYSTEM
8-10Maintenance and do-it-yourself
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If the cooling system frequently requires
coolant, have it checked by an autho-
rized NISSAN dealer.
CHANGING ENGINE COOLANT
An authorized NISSAN dealer can change
the engine coolant. The service procedure
can be found in the NISSAN Service
Manual.
Improper servicing can result in reduced
heater performance and engine over-
heating.
WARNING
OTo avoid the danger of being
scalded, never change the coolant
when the engine is hot.
ONever remove the radiator cap when
the engine is hot. Serious burns
could be caused by high pressure
fluid escaping from the radiator.
OAvoid direct skin contact with used
coolant. If skin contact is made,
wash thoroughly with soap or hand
cleaner as soon as possible.OKeep coolant out of reach of children
and pets.
Engine coolant must be disposed of
properly. Check your local regulations.
CHECKING ENGINE OIL LEVEL
1. Park the vehicle on a level surface and
apply the parking brake.
2. Start the engine and let it idle until it
reaches operating temperature.
3. Turn off the engine.Wait a few minutes
for the oil to drain back into the oil
pan.
WDI0090
ENGINE OIL
Maintenance and do-it-yourself8-11
ZX

4. Remove the dipstick and wipe it clean.
Reinsert it all the way.5. Remove the dipstick again and check the
oil level. It should be between the H
(High) and L (Low) marks. If the oil level
is below the L (Low) mark, remove the oil
filler cap and pour recommended oil
through the opening.Do not overfill.6. Recheck oil level with dipstick.
It is normal to add some oil between oil
maintenance intervals or during the
break-in period, depending on the sever-
ity of operating conditions.
CAUTION
Oil level should be checked regularly.
Operating the engine with an insuffi-
cient amount of oil can damage the
engine, and such damage is not cov-
ered by warranty.
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CHANGING ENGINE OIL
1. Park the vehicle on a level surface and
apply the parking brake.
2. Start the engine and let idle until it
reaches operating temperature, and then
turn it off.
3. Remove the oil filler cap.
4. Place a large drain pan under the drain
plug.5. Remove the drain plug with a wrench and
completely drain the oil.
If the oil filter is to be changed, remove
and replace it at this time. See ``Chang-
ing engine oil filter'' later in this section.
WARNING
OProlonged and repeated contact with
used engine oil may cause skin can-
cer.
OTry to avoid direct skin contact with
used oil. If skin contact is made,
wash thoroughly with soap or hand
cleaner as soon as possible.
OKeep used engine oil out of reach of
children.
CAUTION
Be careful not to burn yourself. The
engine oil is hot.
OWaste oil must be disposed of prop-
erly.
OCheck your local regulations.
6. Clean and reinstall the drain plug and a
new washer. Securely tighten the drain
plug with a wrench. Do not use excessive
force.
Drain plug tightening torque:
22 to 29 ft-lb (29 to 39 Nzm)ADI1063WDI0093
Maintenance and do-it-yourself8-13
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7. Refill engine with a recommended oil
through the oil filler opening then install
the oil filler cap securely.
See ``Capacities and recommended
fuel/lubricants'' in the ``Technical and
consumer information'' section for drain
and refill capacity.
The drain and refill capacity depends on
the oil temperature and drain time. Use
these specifications for reference only.
Always use the dipstick to determine
when the proper amount of oil is in the
engine.
8. Start the engine. Check for leakage
around the drain plug and oil filter. Cor-
rect as required.
9. Turn the engine off and wait several
minutes. Check the oil level with the
dipstick. Add engine oil if necessary.
CHANGING ENGINE OIL FILTER
1. Park the vehicle on a level surface and
apply the parking brake.
2. Turn the engine off.
3. Remove the splash shield.
ORemove the six push pins.
ORemove the six bolts and the splash
shield.
4. Place a large drain pan under the oil filter.
5. Loosen the oil filter with an oil filter
wrench. Then remove the oil filter by
turning it by hand.
CAUTION
Be careful not to burn yourself. The
engine oil may be hot.
6. Wipe the engine oil filter mounting sur-
face with a clean rag.
Be sure to remove any old rubber gasket
remaining on the mounting surface of the
engine.
7. Coat the rubber gasket on the new filter
with engine oil.
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8-14Maintenance and do-it-yourself
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8. Screw in the oil filter until a slight resis-
tance is felt, then tighten an additional
2/3 turn.
9. Start the engine and check for leakage
around the oil filter. Correct as required.
10.Turn the engine off and wait several
minutes. Check the oil level. Add engine
oil if necessary.WARNING
OWhen the engine is running, keep
hands, jewelry and clothing away
from any moving parts such as the
cooling fan and drive belts.
OAutomatic transmission fluid is poi-
sonous and should be stored care-
fully in marked containers out of the
reach of children.
TEMPERATURE CONDITIONS
FOR CHECKING
OThe fluid level should be checked using
the HOT range on the dipstick after the
following conditions have been met:
Ð The engine should be warmed up to
operating temperature.
Ð The vehicle should be driven at least 5
minutes.
Ð The ATF should be warmed to between
122 and 176ÉF (50 and 80ÉC).OThe ATF can be checked at fluid tem-
peratures of 86 to 122ÉF (30 to 50ÉC)
using the COLD range on the dipstick
after the engine is warmed up and before
driving. However, the fluid should be
re-checked using the HOT range.
1. Park the vehicle on a level surface and
set the parking brake.
2. Start the engine and then move the se-
lector lever through each gear range,
ending in P (Park).
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AUTOMATIC TRANSMISSION
FLUID
Maintenance and do-it-yourself8-15
ZX

3. Check the fluid level with the engine
idling.
4. Remove the dipstick and wipe it clean
with lint-free paper.
5. Re-insert the dipstick into the charging
pipe as far as it will go.
6. Remove the dipstick and note the read-
ing. If the level is on the low side of either
range, add fluid through the charging
pipe.
CAUTION
DO NOT OVERFILL. Use ONLY NIS-
SAN Matic `D' (Continental U.S. and
Alaska) or Canada NISSAN Automatic
Transmission Fluid. Dexron
TMIII/ Mer-
conTMor equivalent may also be
used. Outside the continental United
States and Alaska contact an autho-
rized NISSAN dealership for more in-
formation regarding suitable fluids,
including recommended brand(s) of
Dexron
TMIII/MerconTMautomatic
transmission fluid.
NOTE:
If the vehicle has been driven for a long
time at high speeds, or in city traffic in
hot weather, or if it is being used to pull
a trailer, the fluid level cannot be read
accurately. You should wait until the fluid
has cooled down (about 30 minutes).
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CAUTION
Do not spill the fluid on any painted
surfaces. This will damage the paint. If
fluid is spilled, immediately wash the
surface with water.
WINDOW WASHER FLUID
RESERVOIR
CAUTION
ODo not substitute engine anti-freeze
coolant for windshield washer solu-
tion. This may result in damage to
the paint.
ODo not fill the window washer reser-
voir tank with washer fluid concen-
trates at full strength. Some methyl
alcohol based washer fluid concen-
trates may permanently stain thegrille if spilled while filling the win-
dow washer reservoir tank.
OPre-mix washer fluid concentrates
with water to the manufacturer's rec-
ommended levels before pouring the
fluid into the window washer reser-
voir tank. Do not use the window
washer reservoir tank to mix the
washer fluid concentrate and water.
For US
Check the window washer fluid level in the
reservoir tank and add fluid if necessary.
Add a washer solvent to the water for better
cleaning. In the winter season, add a wind-
shield washer anti-freeze. Follow the manu-
facturer's instructions for the mixture ratio.
For Canada
Add fluid when the low washer fluid warning
light comes on. Add windshield washer sol-
vent to the water for better cleaning. In the
winter season, add windshield washer anti-
freeze.
LDI0070
WINDOW WASHER FLUID
8-18Maintenance and do-it-yourself
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JUMP STARTING
If jump starting is necessary, see ``Jump
starting'' in the ``In case of emergency'' sec-
tion. If the engine does not start by jump
starting, the battery may have to be replaced.
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 condi-
tion and tension in accordance with the
maintenance schedule found in the
``NISSAN Service and Maintenance Guide.''
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DRIVE BELTS
8-20Maintenance and do-it-yourself
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