engine NISSAN MAXIMA 1999 A32 / 4.G Workshop Manual

When performing any inspection or mainte-
nance work on your vehicle, always take care
to prevent serious accidental injury to yourself
or damage to the vehicle. The following are
general precautions which should be closely
observed.IPark the vehicle on a level surface,
apply the parking brake securely and
block the wheels to prevent the ve-
hicle from moving. For a manual
transmission, move the shift lever to
N (Neutral) position. For an automatic
transmission, move the selector lever
to P (Park) position.
IBe sure the ignition key is OFF or
LOCK when performing any parts re-
placement or repairs.
IYour vehicle is equipped with an au-
tomatic engine cooling fan. It may
come on at any time without warning,
even if the ignition key is in the OFF
position and the engine is not run-
ning. To avoid injury, always discon-
nect the negative battery cable before
working near the fan.IIf you must work with the engine
running, keep your hands, clothing,
hair and tools away from moving
fans, belts and any other moving
parts.
IIt is advisable to remove necktie and
any jewelry, such as rings, watches,
etc. before working on your vehicle.
IAlways wear eye protection when-
ever you work on your vehicle.
IIf you must run the engine in an
enclosed space such as a garage, be
sure there is proper ventilation for
exhaust gases.
INever get under the vehicle while it is
supported only by a jack. If it is nec-
essary to work under the vehicle,
support it with safety stands.
IKeep smoking materials, flame and
sparks away from fuel and the bat-
tery.
IOn gasoline engine models with the
Multiport Fuel Injection (MFI) System,
the fuel filter or fuel lines should be
serviced by a NISSAN dealer becausethe fuel lines are under high pressure
even when the engine is off.
IDo not work under the hood while the
engine is hot. Turn off the engine and
wait until it cools down.
INever connect or disconnect either
the battery or any transistorized com-
ponent connector while the ignition
key is on.
INever leave the engine or the auto-
matic transmission related compo-
nent harness connector discon-
nected while the ignition key is on.
IAvoid direct contact with used engine
oil. Improperly disposed motor oil
and/or other vehicle fluids can hurt
the environment. Always conform to
local regulations for disposal of ve-
hicle fluid.This ª8. Do-it-yourselfº section gives instruc-
tions regarding only those items which are
relatively easy for an owner to perform.
MAINTENANCE PRECAUTIONS8-2
Do-it-yourself
Z
01.1.22/A32-D/V5.0
X

SDI0495A
ENGINE COMPARTMENT CHECK
LOCATIONS8-4
Do-it-yourself
Z
01.1.22/A32-D/V5.0
X

The engine cooling system is filled at the
factory with a high-quality, year-round, anti-
freeze coolant solution. The anti-freeze solu-
tion contains rust and corrosion inhibitors,
therefore additional cooling system additives
are not necessary.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/distilled
water. The use of other types of coolant
solutions may damage your engine
cooling system.Outside temperature
down to
Anti-
freezeDeminer-
alized
water/
distilled
water ÉC ÉF
þ35 þ30 50% 50%
INever remove the radiator cap when
the engine is hot. Serious burns
could be caused by high pressure
fluid escaping from the radiator. Wait
until the engine and radiator cool
down.
ISee ªIf your vehicle overheatsº in the
ª6. In case of emergencyº section.
IThe radiator is equipped with a pres-
sure cap. Use only a genuine cap as a
replacement.
CHECKING ENGINE COOLANT
LEVELCheck the coolant level in the reservoir tank
when the engine is cold. If the coolant level is
below MIN, add coolant up 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.
If the engine cooling system frequently
requires coolant, have it checked by your
NISSAN dealer.
SDI0747
ENGINE COOLING SYSTEM
Do-it-yourself
8-5
Z
01.1.22/A32-D/V5.0
X

CHANGING ENGINE COOLANTIMajor cooling system repairs should be
performed by your NISSAN dealer. The
service procedures can be found in the
appropriate NISSAN Service Manual.IImproper servicing can result in reduced
heater performance and engine overheat-
ing.
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 cap and drain plug.
2. Open the drain plug on the engine block.
3. Flush the cooling system by running fresh
water through the radiator.
4. Close the radiator drain plug and the drain
plug on the engine block securely.
5. See ªCapacities and recommended
fuel/lubricantsº in the ª10. Technical and
consumer informationº section for cooling
system capacity. Fill the radiator slowly with
the proper mixture of coolant and water. Fill
the reservoir tank up to the MAX level. Then
install the radiator cap.
SDI0114
8-6
Do-it-yourself
Z
01.1.22/A32-D/V5.0
X

6. Start the engine, and warm it up until the
radiator fan operates. Then race the engine
two or three times under no load. Watch the
coolant temperature gauge for signs of
overheating.
7. Stop the engine. After it completely cools
down, refill the radiator up to the filler
opening. Fill the reservoir tank up to the
MAX level.
8. Check the radiator drain plug and the drain
plug on the engine block for any sign of
leakage.
CHECKING ENGINE OIL LEVEL1. Park the vehicle on a level surface and
apply parking brake.
2. Run the engine until it reaches operating
temperature.
3. Turn off the engine.Wait more than 10
minutes for the oil to drain back into the
oil pan.
4. Remove the dipstick and wipe it clean.
Reinsert it all the way.
SDI0138
SDI0115
ENGINE OIL
Do-it-yourself
8-7
Z
01.1.22/A32-D/V5.0
X

5. Remove the dipstick again and check the
oil level. It should be between the H and L
marks. If the oil level is below the L mark,
remove the oil filler cap and pour recom-
mended 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 severity
of operating conditions.
Oil level should be checked regularly.
Operating with insufficient amount of oil
can damage the engine, and such dam-
age is not covered by warranty.
CHANGING ENGINE OIL1. Park the vehicle on a level surface and
apply the parking brake.
2. Run the engine until it reaches operating
temperature.
3. Turn the engine off and wait more than 10
minutes.
4. Place a large drain pan under the drain
plug.
5. Remove the oil filler cap.
SDI0534
SDI0139
8-8
Do-it-yourself
Z
01.1.22/A32-D/V5.0
X

6. Remove the drain plug with a wrench and
completely drain the oil.
If oil filter is to be changed, remove and
replace it at this time. See later in ªEngine
oilº for changing engine oil filter.Be careful not to burn yourself, as the
engine oil is hot.Waste oil must be disposed of properly.
Check your local regulations.
7. Clean and re-install the drain plug and new
washer. Securely tighten the drain plug with
a wrench.
Drain plug tightening torque:
22 to 29 ft-lb
(29 to 39 N×m)
Do not use excessive force.
8. Refill engine with recommended oil and
install the cap securely.
See ªCapacities and recommended
fuel/lubricantsº in the ª10. Technical and
consumer informationº section for drain and
refill capacity. The drain and refill capacitydepends 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.
9. Start the engine.
Check for leakage around the drain plug.
Correct as required.
10.Turn the engine off and wait more than 10
minutes. Check the oil level with the dip-
stick. Add engine oil if necessary.
11.Dispose of waste oil in the proper manner.
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.
CHANGING ENGINE OIL FILTER1. Park the vehicle on a level surface and
apply the parking brake.
2. Turn the engine off.
3. Loosen the oil filter with an oil filter wrench.
(Depending on the engine model, a special
cap typewrench may be required. See
your NISSAN dealer if in doubt.) Remove
the oil filter by turning it by hand.
SDI0140
Do-it-yourself
8-9
Z
01.1.22/A32-D/V5.0
X

Be careful not to burn yourself, as the
engine oil may be hot.4. Wipe the engine oil filter mounting surface
with a clean rag.
Be sure to remove any old rubber gasket
remaining on the mounting surface of the
engine.
5. Coat the rubber gasket on the new filter
with clean engine oil.
6. Screw in the oil filter until a slight resistance
is felt, then tighten additionally more than
2/3 turn.
Oil filter tightening torque:
10.85 to 15.19 ft-lb
(14.7 to 20.6 N×m)
7. Start the engine and check for leakage
around the oil filter. Correct as required.
8. Turn the engine off and wait several min-
utes. Check the oil level. Add engine oil if
necessary.
IWhen engine is running, keep hands,
jewelry and clothing away from any
moving parts such as cooling fan and
drive belt.
IAutomatic transmission fluid is poi-
sonous and should be stored care-
fully in marked containers out of the
reach of children.
TEMPERATURE CONDITIONS
FOR CHECKINGIThe fluid level should be checked using the
HOT range on the dipstick after the follow-
ing conditions have been met:
a) the engine should be warmed up to
operating temperature.
b) the vehicle should be driven at least 5
minutes.
c) the automatic transmission fluid should
be warmed to between 122 and 176ÉF
(50 and 80ÉC).
IThe fluid can be checked at fluid tempera-
tures of 86 to 122ÉF (30 to 50ÉC) using the
COLD range on the dipstick after the en-
gine is warmed up and before driving. How-
ever, 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 selector
lever through each gear range. Move the
selector lever to P (Park) position after you
have moved it through all ranges.
SDI0748
AUTOMATIC TRANSMISSION
FLUID
8-10
Do-it-yourself
Z
01.1.22/A32-D/V5.0
X

3. Check the fluid level with the engine idling.
4. Remove the dipstick and wipe it clean with
lint-free paper.
5. Reinsert the dipstick into the charging pipe
as far as it will go.
6. Remove the dipstick and note the reading.
If the level is at the low side of either range,
add fluid to the charging pipe.
IDo not overfill.
IUse only NISSAN Matic D (Continen-
tal US and Alaska) or genuine auto-
matic transmission fluid (Canada).
Dexron
TMIII/Mercon
TM
or equivalent
may also be used. Outside the conti-
nental US and Alaska contact a
NISSAN dealer for more information
regarding suitable fluids, including
recommended brand(s) of Dexron
TM
III/Mercon
TM
automatic 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 accurate fluid level cannot be
read. You should wait until the fluid has
cooled down (about 30 minutes).Check the fluid level in the reservoir tank.
The fluid level should be checked using the
HOT range at fluid temperatures of 122 to
176ÉF (50 to 80ÉC) or using the COLD range at
fluid temperatures of 32 to 86ÉF (0 to 30ÉC).
IDo not overfill.
IUse type DEXRON
TMIII or equivalent.
SDI0496
SDI0118
POWER STEERING FLUID
Do-it-yourself
8-11
Z
01.1.22/A32-D/V5.0
X

Type B:
To check the fluid level, use your finger to plug
the center hole of the cap (as shown above),
then remove it from the tank. If there is no fluid
in the tube, add fluid. Add a washer solvent to
the water for better cleaning. In the winter
season, add a windshield washer anti-freeze.
Follow the manufacturer's instructions for the
mixture ratio.
Anti-freeze is poisonous and should be
stored carefully in marked containers
out of the reach of children.Do not substitute engine anti-freeze
coolant for window washer solution.
This may result in damage to the paint.
IKeep the battery surface clean and dry. Any
corrosion should be washed off with a
solution of baking soda and water.
IMake certain the terminal connections are
clean and securely tightened.
IIf the vehicle is not to be used for 30 days or
longer, disconnect the (Ð) negative battery
terminal cable to prevent discharge.IDo not expose the battery to flames
or electrical sparks. Hydrogen gas
generated by battery action is explo-
sive. Do not allow battery fluid to
contact your skin, eyes, fabrics, or
painted surfaces. After touching a
battery or battery cap, do not touch or
rub your eyes. Thoroughly wash your
hands. If the acid contacts your eyes,
skin or clothing, immediately flush
with water for at least 15 minutes and
seek medical attention.
IWhen working on or near a battery,
always wear suitable eye protection
and remove all jewelry.
IKeep the battery out of the reach of
SDI0497
BATTERY
Do-it-yourself
8-13
Z
01.1.22/A32-D/V5.0
X