cooling TOYOTA T100 1998 Owners Manual

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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 overheats” in Part 4.
Oil pressure gauge
The oil pressure gauge indicates engine
oil pressure when the ignition is on.
Check it while driving to make sure
that the needle is in the proper range.
If the oil pressure should stay below the
normal range, pull off the road to a safe
place and stop the engine immediately.
Call a Toyota dealer or qualified repair
shop for assistance.
Oil pressure may not build up when the
oil level is too low. The oil pressure
gauge is not designed to indicate oil level,
and the oil level must be checked using
the level dipstick.
NOTICE
Do not drive the vehicle with the oil
pressure below the normal range until
the cause is fixed–it may ruin the en-
gine.

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Heating
For best results, set controls to:
Fan speed —Any setting except ”OFF”
Temperature —Towards WA R M
(red zone)
Air intake —FRESH (outside air)
Air flow —FLOOR
Air conditioning —OFF
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/C” 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 speed —Any setting except ”OFF”
Temperature —Towards COLD
(blue zone)
Air intake —FRESH (outside air)
Air flow —PA N E L
Air conditioning —ONFor quick cooling, move the air intake
selector to recirculate for a few min-
utes.
Ventilation
For best results, set controls to:
Fan speed —Any setting except ”OFF”
Temperature —Towards COLD
(blue zone)
Air intake —FRESH (outside air)
Air flow —PA N E L
Air conditioning —OFF
Defogging
The inside of the windshield
For best results, set controls to:
Fan speed —Any setting except ”OFF”
Temperature —Towards WARM
(red zone) to heat; COLD (blue zone) to
cool
Air intake —FRESH (outside air)
Air flow —WINDSHIELD
Vehicles with ”A/C” button—
Moving the air flow selector lever to the
windshield position turns on the defroster −
linked air conditioning. This is to clear up
the front view more quickly.
When the ”A/C” button is not pressed in,
moving the air flow selector lever to
another position turns off the air condition-
ing.
On humid days, do not blow cold air
on the windshield—the difference be-
tween the outside and inside tempera-
tures could make the fogging worse.

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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.
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. Have the cause immediately
located and corrected.
Toyota does not recommend occu-
pying the rear cargo area when it
is fitted with a slide-in camper,
camper shell or other type cover
while the engine is running. This
caution applies to both driving and
stopped or parked situations with
the engine running. Particular care
should be taken to prevent exhaust
gases from entering camper bodies,
trailers or other enclosures on or
around your vehicle. If exhaust
fumes are detected, open all win-
dows and thoroughly ventilate the
area.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.
Facts about engine oil
consumption

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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 ”FULL” and ”LOW” lines on the
reservoir. If the level is low, add ethyl-
ene-glycol type coolant.
The coolant level in the reservoir will vary
with engine temperature. However, if the
level is on or below the ”LOW” line, add
coolant. Bring the level up to the ”FULL”
line.
Use only ethylene-glycol type coolant. 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.
CAUTION
To prevent burning yourself, do not
remove the radiator cap when the en-
gine is hot.
Coolant type selection
Your coolant must contain ethylene-glycol
antifreeze. In addition to preventing freez-
ing and subsequent damage to the engine,
this will also prevent corrosion. Further
supplemental inhibitors or additives are
neither needed nor recommended.
Read the antifreeze container for informa-
tion on freeze protection. Follow the
manufacturer ’s directions for how much to
mix with water. The total capacity of the
cooling system is given in Part 8. We
recommend 50% solution be used for your
Toyota, or a sufficient quantity to provide
protection to about –35
°C (–31 °F).
NOTICE
Do not use alcohol type antifreeze or
plain water alone.
Checking the engine coolant level

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CAUTION
Do not drive with the snow tires
incorrectly inflated.
Never drive over 120 km/h (75 mph)
with any type of snow tires.
TIRE CHAIN SELECTION
Use the tire chains of correct size.
Regulations regarding the use of tire
chains vary according to location or
type of road, so always check them
before installing chains.
CHAIN INSTALLATION
Install the chains on the rear tires as
tightly as possible. Do not use tire
chains on the front tires. Retighten
chains after driving 0.5–1.0 km (1/4–1/2
mile).
When installing chains on your tires, care-
fully follow the instructions of the chain
manufacturer.
If wheel covers are used, they will be
scratched by the chain band, so remove
the covers before putting on the chains.
CAUTION
Do not exceed 50 km/h (30 mph) or
the chain manufacturer ’s recom-
mended speed limit, whichever is
lower.
Drive carefully avoiding bumps,
holes, and sharp turns, which may
cause the vehicle to bounce.
Avoid sharp turns or locked-wheel
braking as use of chains may ad-
versely affect vehicle handling.
Replacing wheels
WHEN TO REPLACE YOUR WHEELS
If you have wheel damage such as
bending, cracks or heavy corrosion, the
wheel should be replaced.
If you fail to replace damaged wheels, the
tire may slip off the wheel or they may
cause loss of handling control.
WHEEL SELECTION
When replacing wheels, care should be
taken to ensure that the wheels are re-
placed by ones with the same load ca-
pacity, diameter, rim width, and offset.
Correct replacement wheels are available
at your Toyota dealer.
A wheel of a different size or type may
adversely affect handling, wheel and bear-
ing life, brake cooling, speedometer/odom-
eter calibration, stopping ability, headlight
aim, bumper height, vehicle ground clear-
ance, and tire or snow chain clearance to
the body and chassis.
Replacement with used wheels is not rec-
ommended as they may have been sub-
jected to rough treatment or high mileage
and could fail without warning. Also, bent
wheels which have been straightened may
have structural damage and therefore
should not be used. Never use an inner
tube in a leaking wheel which is designed
for a tubeless tire.

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ENGINE LUBRICATION
Oil capacity (drain and ref
ill),
L (qt., Imp. qt.):
Two-wheel drive models 3RZ −FE engine
With filter 5.5 (5.8, 4.8)
Without filter 4.8 (5.1, 4.2)
5VZ −FE engine
With filter 5.2 (5.5, 4.6)
Without filter 4.9 (5.2, 4.3)
Four-wheel drive models With filter 4.7 (5.0, 4.1)
Without filter 4.4 (4.7, 3.9)
Oil grade: API grade SH, ”Energy-Conserving II”
or SJ, ”Energy-Conserving” multigrade
engine oil or ILSAC multigrade engine
oil is recommended.
Recommended oil viscosity (SAE):
COOLING SYSTEM
Total capacity, L (qt., Imp. qt.): Two-wheel drive models
With manual transmission 3RZ −FE engine
8.7 (9.2, 7.7)
5VZ −FE engine
10.0 (10.6, 8.8)
With automatic transmission
3RZ −FE engine
9.0 ( 9.5, 7.9)
5VZ −FE engine
9.9 (10.5, 8.7)
Four-wheel drive models With manual transmission
10.0 (10.6, 8.8)
With automatic transmission 9.9 (10.5, 8.7)
Coolant type: With ethylene-glycol antifreeze
(Do not use alcohol type.)
BATTERY
Open voltage
at 20 C (68 F):
12.6—12.8 V Fully charged
12.2—12.4 V Half charged
11.8—12.0 V Discharged
: Voltage that is checked 20 minutes after
the key is removed with all the lights
turned off
Charging rates: 5 A max. CLUTCH
Pedal freeplay, mm (in.):
5—15 (0.2—0.6)
Fluid type:
SAE J1703 or FMVSS No.116 DOT 3
MANUAL TRANSMISSION
Oil capacity, L (qt., Imp. qt.): 3RZ −FE engine
2.6 (2.7, 2.3)
5VZ −FE engine
Two-wheel drive models
2.6 (2.7, 2.3)
Four-wheel drive models 2.2 (2.3, 1.9)

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Fuses
Fuses (type A)
1. HEAD (LH) 10 A: Left-hand headlight
2. HEAD (RH) 10 A: Right-hand headlight
3. A/C 10 A: Air conditioning cooling sys-
tem
4. EFI 15 A: Multiport fuel injection sys-
tem/sequential multiport fuel injection
system, electronically controlled auto-
matic transmission system
5. HAZ-HORN 15 A: Emergency flashers,
horns
6. DOME 15 A: Interior light, personal
lights, step lights, ignition switch light,
radio, cassette tape player, power an-
tenna, clock7. HEAD (LH-HI) 10 A: Left-hand head-
light (high beam)
8. HEAD (RH-HI) 10 A: Right-hand head-
light (high beam)
9. HEAD (LH-LO) 10 A: Left-hand head-
light (low beam)
10. HEAD (RH-LO) 10 A: Right-hand head-
light (low beam)
11. ENGINE 10 A: Charging system, cruise
control system
12. IGN. 7.5 A: Charging system, dis-
charge warning light, multiport fuel in-
jection system/sequential multiport fuel
injection system13. TAIL 15 A: Tail lights, parking lights,
license plate lights, instrument panel
lights, glovebox light
14. WIPER 20 A: Windshield wiper and
washer
15. GAUGES 10 A: (except discharge warn-
ing light), A.D.D. control system, cruise
control system, back-up lights, power
door lock system
16. STOP 15 A: Stop lights, High-mounted
stoplight, cruise control system, elec-
tronically controlled automatic transmis-
sion system