2001 TOYOTA TUNDRA fuel pressure

'01 TUNDRA_U (L/O 0008)
52001 TUNDRA (OM 34416U)
1. Oil pressure gauge
2. Service reminder indicators and
indicator lights
3. Tachometer 4. Speedometer
5. Voltmeter
6. Fuel gauge
7. Trip meter reset knob
8. Odometer and two trip meters
9. Engine coolant temperature gauge
Instrument cluster overview


With tachometer
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'01 TUNDRA_U (L/O 0008)
72001 TUNDRA (OM 34416U)
Indicator symbols on the instrument panel
Seat belt reminder light*
1
Low oil pressure warning light*1
Low fuel level warning light*1
Brake system warning light*1
Discharge warning light*1
Malfunction indicator lamp*1
Anti±lock brake system warning light*1
SRS warning light*1
or
Automatic transmission fluid temperature warning
light*1
Unengaged ªParkº warning light*1
Low windshield washer fluid level warning
light*1
Headlight high beam indicator light
Overdrive±off indicator light Turn signal indicator lights
Open door warning light*1
Passenger airbag off indicator light
Front passenger 's seat belt reminder light*1
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'01 TUNDRA_U (L/O 0008)
172001 TUNDRA (OM 34416U)
2. In front of the vehicle, pull up the
auxiliary catch l ever and lift the
hood.
Before closing the hood, check to see that
you have not forgotten any tools, rags,
etc. Then lower the hood and make sure
it locks into place. If necessary, press
down gently on the front edge to lock it.
Fuel tank cap
1. To open the fuel filler door, insert the key and turn it counterclockwise.
When refueling, turn off the engine.
CAUTION

Do not smoke, cause sparks or al-
low open flames when refueling.
The fumes are flammable.

When opening the cap, do not re-
move the cap quickly. In hot weath-
er, fuel under pressure could cause
injury by spraying out of the filler
neck if the cap is suddenly re-
moved.

Do not fill a fuel container on a
plastic truck bed liner, a rubber
truck bed mat, or any other insulat-
ing material. A static electricity
charge could cause a spark and fire
hazard. The proper procedure is to
place an approved fuel container on
the ground away from the truck for
filling.
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'01 TUNDRA_U (L/O 0008)
182001 TUNDRA (OM 34416U)
2. To remove the fuel tank cap, turn
the cap slowly counterclockwise,
then pause slightly before removing
it. After removing the cap, hang it
on the cap hanger.
It is not unusual to hear a slight swoosh
when the cap is opened. When insta lling,
turn the cap clockwise till you hear a
click.
If the cap is not tightened securely, the
malfunction indicator lamp comes on.
Make sure the cap is tightened securely.
The indicator lamp goes off after driving
several times. If the indicator lamp does
not go off, contact your Toyota dealer as
soon as possible.
CAUTION

Make sure the cap is tightened se-
curely to prevent fuel sp illage in
case of an accident.

Use only a genuine Toyota fuel tank
cap for replacement. It is designed
to regulate fuel tank pressure.
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'01 TUNDRA_U (L/O 0008)
852001 TUNDRA (OM 34416U)
OPERATION OF INSTRUMENTS AND
CONTROLS
Gauges, Meters and Service reminder indicators
Fuel gauge 86
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Engine coolant temperature gauge 86
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Oil pressure gauge 87
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Vo ltme te r 88
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Tachometer 88
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Odometer and two trip meters 89
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Service reminder indicators and warning buzzers 89
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SECTION 1± 5
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'01 TUNDRA_U (L/O 0008)
882001 TUNDRA (OM 34416U)
NOTICE
Do not drive the vehicle with the oil
pressure below the normal range untilthe cause is fixedÐit may ruin theengine.
Vo l t m e t e r
The voltmeter tells whether the battery
is charged or discharged. Check it
while the engine is runningÐthe needle
should always indicate as shown above.
If the needle reads below or above the
normal range while the engine is running,
it indicates the charging system needs im-
mediate repair.
However, it is normal for the needle to
drop below the normal range during en-
gine starting.
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 over±revving.
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 causesevere engine damage.
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'01 TUNDRA_U (L/O 0008)
1762001 TUNDRA (OM 34416U)

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.

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.
Facts about engine oil
consumption
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'01 TUNDRA_U (L/O 0008)
1772001 TUNDRA (OM 34416U)
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 troubledue to insufficient oil.
For detailed information on oil level check,
see ªChecking the engine oil levelº in Sec-
tion 7±2.
Your engine is fitted with twin ground
electrode spark plugs.
NOTICE
Use only twin ground electrode spark
plugs for your engine performance.
Brake system
The tandem master cylinder brake system
is a hydraulic system with two separate
sub±systems. If either s ub±system should
fail, the other will still work. However, the
pedal will be harder to press, and your
stopping distance will be longer. Also, the
brake system warning light may come on.
CAUTION
Do not drive your vehicle with only a
single brake system. Have your
brakes fixed immediately.
BRAKE BOOSTER
The brake booster uses engine vacuum to
power±assist the brakes. If the engine
should quit while you are driving, you can
bring the vehicle to a stop with normal
pedal pressure. There is enough reserved
vacuum for one or two stopsÐbut no
more!
Twin ground electrode spark
plugs (5VZ±FE engine)
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