1998 TOYOTA T100 air condition

T100(U)105
Fan speed selector
Move the lever to adjust the fan speed—
to the right to increase, to the left to
decrease.
Temperature selector
Move the lever to adjust the tempera-
ture—to the right to warm, to the left to
cool.
Air flow selector
Move the lever to select the vents used
for air flow.
1. Panel— Air flows mainly from the
instrument panel vents.
2. Bi −level— Air flows from both the floor
vents and the instrument panel vents.
3. Floor— Air flows mainly from the floor
vents.
4. Floor/Windshield— Air flows mainly
from the floor vents and windshield
vents.
5. Windshield— Air flows mainly from the
windshield vents. For details about air flow selector settings,
see the illustration after ”A/C” button.
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.

T100(U)
106
Air intake selector
Move the lever to select the air source. 1. Recirculate —Recirculates the air inside
the vehicle.
2. Fresh —Draws outside air into the sys-
tem. ”A/C” button
To turn on the air conditioning, press the
”A/C” button. The ”A/C” button indicator
will come on. To turn the air conditioning
off, press the button again.

T100(U)107
—Air flow selector settings
—Operating tips
To cool off your Toyota after it has
been parked in the hot sun, drive with
the windows open for a few minutes.
This vents the hot air, allowing the air
conditioning to cool the interior more
quickly.
Make sure the air intake grilles in front
of the windshield are not blocked (by
leaves or snow, for example).
On humid days, do not blow cold air
on the windshield. The windshield could
fog up because of the difference in air
temperature on the inside and outside
of the windshield.
Keep the area under the front seats
clear to allow air to circulate through-
out the vehicle.
On cold days, move the fan speed to
”HI” for a minute to help clear the in-
take ducts of snow or moisture. This
can reduce the amount of fogging on
the windows.

T100(U)
108
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.

T100(U)109
Defrosting
The outside of the windshield
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 —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.
To heat the vehicle interior while de-
frosting the windshield, choose
floor/windshield air flow. —Instrument panel vents
If air flow control is not satisfactory, check
the instrument panel vents. The instrument
panel vents may be opened or closed as
shown.

T100(U)121

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 level” in
Chapter 7
−2.
Your engine is fitted with twin ground
electrode spark plugs.
NOTICE
Use only twin ground electrode spark
plugs for your engine performance.
Twin ground electrode spark
plugs (5VZ −FE engine)

T100(U)
130
(b) Starting the engine
Before starting the engine, be sure to fol-
low the instructions in ”(a) Before crank-
ing”.
Normal starting procedure
The multiport fuel injection system/sequen-
tial multiport fuel injection system in your
engine automatically controls the proper
air-fuel mixture for starting. You can start
a cold or hot engine as follows:
1. With your foot off the accelerator ped- al, crank the engine by turning the key
to ”START”. Release it when the en-
gine starts.
2. After the engine runs for about 10 se- conds, you are ready to drive.
If the weather is below freezing, let the
engine warm up for a few minutes before
driving.
If the engine stalls...
Simply restart it, using the correct proce-
dure given in normal starting.
If the engine will not start—
See ”If your vehicle will not start” in Part 4.
NOTICE
Do not crank for more than 30 se-
conds at a time. This may overheat
the starter and wiring systems.
Do not race a cold engine.
If the engine becomes difficult to
start or stalls frequently, have the
engine checked immediately.
Always slow down in gusty crosswinds.
This will allow you much better control.
Drive slowly onto curbs and, if pos-
sible, at a right angle. Avoid driving
onto high, sharp −edged objects and
other road hazards. Failure to do so
can lead to severe tire damage result-
ing in tire bursts.
When parking on a hill, turn the front
wheels until they touch the curb so
that the vehicle will not roll. Apply the
parking brake, and place the transmis-
sion in ”P” (automatic) or in first or
reverse (manual). If necessary, block
the wheels.
Washing your vehicle or driving through
deep water may get the brakes wet. To
see whether they are wet, check that
there is no traffic near you, and then
press the pedal lightly. If you do not
feel a normal braking force, the brakes
are probably wet. To dry them, drive
the vehicle cautiously while lightly
pressing the brake pedal with the park-
ing brake pulled. If they still do not
work safely, pull to the side of the road
and call a Toyota dealer for assistance.
Tips for driving
in various conditions

T100(U)133
NOTICE
If driving through water, such as
when crossing shallow streams,
first check the depth of the water
and the bottom of the river bed for
firmness. Drive slowly and avoid
deep water.
Take all necessary safety measures
to ensure that
damage to the engine or other com-
ponents does not occur.
Water entering the engine air intake
will cause severe engine damage.
Water can wash the grease from
wheel bearings, causing rusting and
premature failure, and may also en-
ter the differentials, transmission
and transfer case, reducing the gear
oil’s lubricating qualities.
Sand and mud that has accumulated
in brake drums and around brake
discs may affect braking efficiency
and may damage brake system com-
ponents.
Always perform a maintenance in-
spection after each day of off-road
driving that has taken you through
rough terrain, sand, mud, or water.
For scheduled maintenance informa-
tion, refer to the separate ”Owner’s
Manual Supplement/Maintenance
Schedule”.
Winter driving tips
Make sure you have ethylene-glycol an-
tifreeze in the radiator.
NOTICE
Do not use alcohol type antifreeze.
Check the condition of the battery and
cables.
Cold temperatures reduce the capacity of
any battery, so it must be in top shape
to provide enough power for winter start-
ing. Chapter 7 −3 tells you how to visually
inspect the battery. Your Toyota dealer
and most service stations will be pleased
to check the level of charge.
Make sure the engine oil viscosity is
suitable for the cold weather.
See Chapter 7 −2 for recommended viscos-
ity. Leaving a heavy summer oil in your
vehicle during winter months may cause
harder starting. If you are not sure about
which oil to use, call your Toyota dealer–
he will be pleased to help.
Keep the door locks from freezing.
Squirt lock de-icer or glycerine into the
locks to keep them from freezing. To open
a frozen lock, try heating the key before
inserting it.