2000 TOYOTA 4RUNNER cooling

1732000 4Runner (OM35762U)
ÐExhaust emission label
To distinguish your vehicle, refer to the
exhaust emission label back of your en-
gine hood. The letter printed on the
label as shown means:
USA: LEV
FED & CANADA: Except LEV
Engine exhaust cautions
CAUTION

Avoid inhaling the engine exhaust.
It contains carbon monoxide, which
is a colorless and odorless gas. It
can cause unconsciousness or even
death.

Make sure the exhaust system has
no holes or loose connections. The
system should be checked from
time to time. If you hit something,
or notice a change in the sound of
the exhaust, have the system
checked immediately.

Do not run the engine in a garage
or enclosed area except for the
time needed to drive the vehicle in
or out. The exhaust gases cannot
escape, making this a particularly
dangerous situation.

Do not remain for a long time in a
parked vehicle with the engine run-
ning. If it is unavoidable, however,
do so only in an unconfined area
and adjust the heating or cooling
system to force outside air into the
vehicle.

Keep the back door and back win-
dow closed while driving. An open
or unsealed back door and back
window, may cause exhaust gases
to be drawn into the vehicle.

To allow proper operation of your
vehicle's ventilation system, keep
the inlet grilles in front of the wind-
shield clear of snow, leaves, or oth-
er obstructions.

If you smell exhaust fumes in the
vehicle, drive with the windows
open and the back door and back
window closed. Have the cause im-
mediately located and corrected.
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1742000 4Runner (OM35762U)
FUNCTIONS OF ENGINE OIL
Engine oil has the primary functions of
lubricating and cooling the inside of the
engine, and plays a major role in main-
taining the engine in proper working order.
ENGINE OIL CONSUMPTION
It is normal that an engine should con-
sume some engine oil during normal
engine operation. The causes of oil
consumption in a normal engine are as
follows.

Oil is used to lubricate pistons, piston
rings and cylinders. A thin film of oil
is left on the cylinder wall when a pis-
ton moves downwards in the cylinder.
High negative pressure generated when
the vehicle is decelerating sucks some
of this oil into the combustion chamber.
This oil as well as some part of the oil
film left on the cylinder wall is burned
by the high temperature combustion
gases during the combustion process.

Oil is also used to lubricate the stems
of the intake valves. Some of this oil
is sucked into the combustion chamber
together with the intake air and is
burned along with the fuel. High tem-
perature exhaust gases also burn the
oil used to lubricate the exhaust valve
stems.
The amount of engine oil consumed de-
pends on the viscosity of the oil, the
quality of the oil and the conditions the
vehicle is driven under.
More oil is consumed by high- speed driv-
ing and frequent acceleration and decel-
eration.
A new engine consumes more oil, since
its pistons, piston rings and cylinder walls
have not become conditioned.
When judging the amount of oil con-
sumption, note that the oil may become
diluted and make it difficult to judge
the true level accurately.
As an example, if a vehicle is used for
repeated short trips, and consumes a nor-
mal amount of oil, the dipstick may not
show any drop in the oil level at all, even
after 1000 km (600 miles) or more. This
is because the oil is gradually becoming
diluted with fuel or moisture, making it
appear that the oil level has not changed.The diluting ingredients evaporate out
when the vehicle is then driven at high
speeds, as on an expressway, making it
appear that oil is excessively consumed
after driving at high speeds.
IMPORTANCE OF ENGINE OIL LEVEL
CHECK
One of the most important points in prop-
er vehicle maintenance is to keep the en-
gine oil at the optimum level so that oil
function will not be impaired. Therefore, it
is essential that the oil level be checked
regularly. Toyota recommends that the oil
level be checked every time you refuel
the vehicle.
NOTICE
Failure to check the oil level regularly
could lead to serious engine trouble
due to insufficient oil.
For detailed information on oil level check,
see Checking the engine oil levelº in Sec-
tion 7- 2.
Facts about engine oil
consumption
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2622000 4Runner (OM35762U)
Oil grade:
API grade SJ, Energy- Conservingº or
ILSAC multigrade engine oil is recom-
mended.
Recommended oil viscosity (SAE):
COOLING SYSTEM
Total capacity, L (qt., Imp. qt.):
3RZ- FE engine
With rear heater 11.0 (11.6, 9.7)
Without rear heater 10.0 (10.6, 8.8)
5VZ- FE engine
With rear heater 9.0 (9.5, 7.9)
Without rear heater 8.0 (8.5, 7.0)Coolant type:
TOYOTA Long Life Coolantº or equiva-
lent
With ethylene- glycol type coolant for a
proper corrosion protection of aluminum
components
Do not use alcohol type antifreeze or
plain water alone.
BATTERY
Open voltage
* at 20
C (68
F):
12.6Ð12.8 V Fully charged
12.2Ð12.4 V Half charged
11.8Ð12.0 V Discharged
*: Voltage that is checked 20 minutes af-
ter the key is removed with all the
lights turned off
Charging rates:
5 A max.
CLUTCH
Pedal free play, mm (in.):
5Ð15 (0.2Ð0.6)
Fluid type:
SAE J1703 or FMVSS No.116 DOT 3MANUAL TRANSMISSION
Oil capacity, L (qt., Imp. qt.):
3RZ- FE engine
Two- wheel drive models
2.6 (2.7, 2.3)
Four- wheel drive models
2.5 (2.6, 2.2)
5VZ- FE engine
2.2 (2.3, 1.9)
Oil type:
Gear oil API GL- 4 or GL- 5
Recommended oil viscosity:
SAE 75W- 90
AUTOMATIC TRANSMISSION
Fluid capacity (drain and refill),
L (qt., Imp. qt.):
Two- wheel drive models
Up to 1.6 (1.7, 1.4)
Four- wheel drive models
Up to 2.0 (2.1, 1.8)
Fluid type:
Automatic transmission fluid D- II or
DEXRONIII (DEXRONII)
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892000 4Runner (OM35762U)

Idling for a long period with the air
conditioning on in stop- and- go traffic.

Towing a trailer.
NOTICE

Do not remove the thermostat in
the engine cooling system as this
may cause the engine to overheat.
The thermostat is designed to con-
trol the flow of coolant to keep the
temperature of the engine within
the specified operating range.

Do not continue driving with an
overheated engine. See If your ve-
hicle overheatsº in Section 4.
Tachometer
The tachometer indicates engine speed
in thousands of rpm (revolutions per
minute). Use it while driving to select
correct shift points and to prevent en-
gine lugging and overrevving.
Driving with the engine running too fast
causes excessive engine wear and poor
fuel economy. Remember, in most cases
the slower the engine speed, the greater
the fuel economy.
NOTICE
Do not let the indicator needle get
into the red zone. This may cause
severe engine damage.
Odometer and two trip meters
This meter displays the odometer and
two trip meters.
1. OdometerÐShows the total distance
the vehicle has been driven.
2. Two trip metersÐShow two different
distances independently driven since
the last time each trip meter was set
to zero.
You can use one trip meter to calculate
the fuel economy and the other to
measure the distance on each trip. All
trip meter data is cancelled if the elec-
trical power source is disconnected.
3. Trip meter reset knobÐResets the two
trip meters to zero, and also change
the meter display.
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1422000 4Runner (OM35762U)

If following another vehicle on a dusty
road, or driving in windy and dusty
conditions, it is recommended that the
air intake selector be temporarily set to
RECIRCULATE, which will close off the
outside passage and prevent outside
air and dust from entering the vehicle
interior.Heating
For best results, set controls to:
Fan speedÐAny setting except OFFº
TemperatureÐTo w a r d s WARM
(red zone)
Air intakeÐFRESH (outside air)
Air flowÐFLOOR
Air conditioningÐOFF

For quick heating, select recirculated
air for a few minutes. To keep the
windows from fogging, select fresh af-
ter the vehicle interior has been
warmed.

Press the A/Cº button on for dehumidi-
fied heating.

Choose floor/windshield air flow to heat
the vehicle interior while defrosting or
defogging the windshield.Air conditioning
For best results, set controls to:
Fan speedÐAny setting except OFFº
TemperatureÐTo w a r d s COLD
(blue zone)
Air intakeÐFRESH (outside air)
Air flowÐPANEL
Air conditioningÐON

For quick cooling, move the air intake
selector to recirculate for a few min-
utes.
Ventilation
For best results, set controls to:
Fan speedÐAny setting except OFFº
TemperatureÐTo w a r d s COLD
(blue zone)
Air intakeÐFRESH (outside air)
Air flowÐPANEL
Air conditioningÐOFF
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1432000 4Runner (OM35762U)
Defogging
The inside of the windshield
For best results, set controls to:
Fan speedÐAny setting except OFFº
TemperatureÐTo w a r d s WARM
(red zone) to heat;
COLD (blue zone)
to cool
Air intakeÐFRESH (outside air)
Air flowÐWINDSHIELD
Turning the Air Flow Selector to wind-
shield position turns on the defroster to
clear the front view more quickly.
Vehicles with A/Cº buttonÐ
Press the A/Cº button for dehumidified
heating or cooling. This setting clears the
front view more quickly.

On humid days, do not blow cold air
on the windshieldÐthe difference be-
tween the outside and inside tempera-
tures could make the fogging worse.Defrosting
The outside of the windshield
For best results, set controls to:
Fan speedÐAny setting except OFFº
TemperatureÐTo w a r d s WARM
(red zone)
Air intakeÐFRESH (outside air)
Air flowÐWINDSHIELD
Turning the Air Flow Selector to wind-
shield position turns on the defroster to
clear the front view more quickly.
Vehicles with A/Cº buttonÐ
Press the A/Cº button for dehumidified
heating. This setting clears the front view
more quickly.

To heat the vehicle interior while de-
frosting the windshield, choose floor/
windshield air flow.
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1482000 4Runner (OM35762U)

If following another vehicle on a dusty
road, or driving in windy and dusty
conditions, it is recommended that the
air intake selector be temporarily set to
RECIRCULATE, which will close off the
outside passage and prevent outside
air and dust from entering the vehicle
interior.Heating
For best results, set controls to:
ÐFor automatic operation
Press in the AUTOº button.
TemperatureÐTo the desired
temperature
Air conditioningÐOFF
ÐFor manual operation
Fan speedÐTo the desired fan speed
TemperatureÐTo w a r d s WARM
(to the right)
Air intakeÐFRESH (outside air)
Air flowÐFLOOR
Air conditioningÐOFF

For quick heating, select recirculated
air for a few minutes. To keep the
windows from fogging, select fresh af-
ter the vehicle interior has been
warmed.

Press the A/Cº button on for dehumidi-
fied heating.

Choose floor/windshield air flow to heat
the vehicle interior while defrosting or
defogging the windshield.Air conditioning
For best results, set controls to:
ÐFor automatic operation
Press in the AUTOº button.
TemperatureÐTo the desired
temperature
Air conditioningÐON
ÐFor manual operation
Fan speedÐTo the desired fan speed
TemperatureÐTo w a r d s COLD
(to the left)
Air intakeÐFRESH (outside air)
Air flowÐPANEL
Air conditioningÐON

For quick cooling, select recirculated
air for a few minutes.
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2392000 4Runner (OM35762U)
API service symbol
ILSAC certification mark
Oil identification marks
Either or both API registered marks are
added to some oil containers to help
you select the oil you should use.
The API Service Symbol is located any-
where on the outside of the container.
The top portion of the label shows the oil
quality by API (American Petroleum Insti-
tute) designations such as SJ. The center
portion of the label shows the SAE viscos-
ity grade such as SAE 5W- 30. Energy-
Conservingº shown in the lower portion,
indicates that the oil has fuel- saving ca-
pabilities.
The ILSAC (International Lubricant Stan-
dardization and Approval Committee) Certi-
fication Mark is displayed on the front of
the container.Look at the see- through coolant reser-
voir when the engine is cold. The cool-
ant level is satisfactory if it is between
the Fº and Lº lines on the reservoir.
If the level is low, add ethylene- glycol
type coolant for a proper corrosion
protection of aluminum components.
The coolant level in the reservoir will vary
with engine temperature. However, if the
level is on or below the Lº line, add
coolant. Bring the level up to the Fº line.
Always use ethylene- glycol type coolant
for a proper corrosion protection of alumi-
num components. See information in the
next column.
If the coolant level drops within a short
time after replenishing, there may be a
leak in the system. Visually check the
radiator, hoses, radiator cap and drain
cock and water pump.
If you can find no leak, have your Toyota
dealer test the cap pressure and check
for leaks in the cooling system.
Checking the engine coolant
level
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