1999 NISSAN FRONTIER check engine

ADI1051
ENGINE COMPARTMENT
CHECK LOCATIONS
Do-it-yourself8-3
ZX

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 a genuine NISSAN
anti-freeze coolant or equivalent with
the proper mixture ratio of 50% anti-
freeze and 50% demineralized water 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
water or
Distilled
water ÉC ÉF
þ35 þ30 50% 50%
WARNING
INever 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.
IThe radiator is equipped with a pres-
sure cap. Use only a genuine NIS-
SAN cap as it's replacement.
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.
ADI1026
ENGINE COOLING SYSTEM
Do-it-yourself8-5
ZX

If the cooling system frequently requires
coolant, have it checked by an autho-
rized NISSAN dealer.CHANGING ENGINE COOLANT
IMajor cooling system repairs should be
performed by an authorized NISSAN
dealer. The service procedures can be
found in the appropriate NISSAN Ser-
vice Manual.
IImproper servicing can result in reduced
heater performance and engine over-
heating.
WARNING
ITo avoid the danger of being
scalded, never change the coolant
when the engine is hot.
INever remove the radiator cap when
the engine is hot. Serious burns
could be caused by high pressure
fluid escaping from the radiator.
1. Open the radiator drain valve. Open the
drain plugs on the engine block.
2.
Open the radiator cap to drain the coolant.
3. Flush the cooling system by running
fresh water through the radiator.
4. Close the radiator drain valve and drain
plug on the engine block securely.5. See ``Capacities and recommended
fuel/lubricants'' in the ``Technical and
consumer information'' section for cool-
ing system capacity. Fill the radiator
slowly with the proper mixture of coolant
and water. Fill the reservoir tank slowly
up to the MAX level.
8-6Do-it-yourself
ZX

11. Check the drain valve on the radiator
and drain plugs on the engine block for
any sign of leakage.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.4. Remove the dipstick and wipe it clean.
Reinsert it all the way.
ADI1058ADI1059ADI1060
ENGINE OIL
Do-it-yourself8-9
ZX

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 with insufficient amount of
oil can damage the engine, and such
damage is not covered by warranty.
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.
ADI1061ADI1062ADI1063
8-10Do-it-yourself
ZX

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
IProlonged and repeated contact with
used engine oil may cause skin can-
cer.
ITry to avoid direct skin contact with
used oil. If skin contact is made,
wash thoroughly with soap or hand
cleaner as soon as possible.
IKeep used engine oil out of reach of
children.
CAUTION
Be careful not to burn yourself, as the
engine oil is hot.
Waste oil must be disposed of properly.
Check your local regulations.
6. Clean and reinstall the drain plug and
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 N×m)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.ADI1064
Do-it-yourself8-11
ZX

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.
IRemove the six push pins.
IRemove 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, as 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.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.
ADI1065ADI1066
8-12Do-it-yourself
ZX

WARNING
IWhen engine is running, keep
hands, jewelry and clothing away
from any moving parts such as cool-
ing fan and drive belts.
IAutomatic transmission fluid is poi-
sonous and should be stored care-
fully in marked containers out of the
reach of children.
TEMPERATURE CONDITIONS
FOR CHECKING ATF
IThe 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).
IThe ATF can be checked at fluid tem-
peratures of 86 to 122ÉF (30 to 50ÉC)
using the COLD range on the dipstickafter 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).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.
ADI1067ADI1068
AUTOMATIC TRANSMISSION
FLUID (ATF)
Do-it-yourself8-13
ZX