2001 TOYOTA TUNDRA engine

'01 TUNDRA_U (L/O 0008)
1572001 TUNDRA (OM 34416U)
Power outlets
The power outlets are designed for
power supply for car accessories.
The key must be in the ªACCº or ªONº
position for the power outlets to be used.
NOTICE
To prevent the fuse from being
blown, do not use the electricityover the total vehicle capacity of12V/120W.
To prevent the battery from beingdischarged, do not use the poweroutlets longer than necessary when
the engine is not running.
Close the power outlet lids whenthe power outlets are not in use.Inserting a foreign object other thanthe appropriate plug that fits the
outlet, or allowing any liquid intothe outlet may cause electrical fail-ure or short circuits.
Glove box
To open the glove box door, pull the
lever.
On some models, the glove box light will
come on when the glove box is opened
with the headlight switch on.
CAUTION
To reduce the chance of injury in
case of an accident or a sudden stop,
always keep the glove box door
closed while driving.
ProCarManuals.com

'01 TUNDRA_U (L/O 0008)
1692001 TUNDRA (OM 34416U)
INFORMATION BEFORE DRIVING YOUR
TOYOTA
Off±road vehicle precautions 170
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Break±in period 171
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . .
Fuel 171
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . . . . . . . . . . .
Operation in foreign countries 173
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Three±way catalytic converters 174
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine exhaust cautions 175
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
Facts about engine oil consumption 176
. . . . . . . . . . . . . . . . . . . . . . . . . .
Twin ground electrode spark plugs 177
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake system 177
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . .
Brake pad wear limit indicators 180
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Luggage stowage precautions 181
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Rear step bumper 181
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . .
Your Toyota's identification 182
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Theft prevention labels 183
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. .
Suspension and chassis 184
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
Types of tires 184
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . . .
SECTION 2
ProCarManuals.com

'01 TUNDRA_U (L/O 0008)
1712001 TUNDRA (OM 34416U)

When driving off±road or in rugged
terrain, do not drive at excessive
speeds, jump, make sharp turns,
strike objects, etc. This may cause
loss of control or vehicle rollover
causing death or serious injury. You
are also risking expensive damage
to your vehicle's suspension and
chassis.

Do not drive horizontally across
steep slopes. Driving straight up or
straight down is preferred. Your ve-
hicle (or any similar off±road ve-
hicle) can tip over sideways much
more easily than forward or back-
ward.
Break±in period
Drive gently and avoid high speeds.
Your vehicle does not need an elaborate
break±in. But following a few simple tips
for the first 1600 km (1000 miles) can add
to the future economy and long life of
your vehicle:

Do not drive over 88 km/h (55 mph).

Run the engine at moderate speed be-
tween 2000 and 4000 rpm.

Avoid full±throttle starts.

Try to avoid hard stops during the first
300 km (200 miles).

Do not drive slowly with the manual
transmission in a high gear.

Do not drive for a long time at any
single speed, either fast or slow.

Do not tow a trailer during the first 800
km (500 miles).
Fuel
FUEL TYPE
Your new vehicle must use only un-
leaded gasoline.
To help prevent gas station mix±ups, your
Toyota has a smaller fuel tank opening.
The special nozzle on pumps with un-
leaded fuel will fit it, but the larger stan-
dard nozzle on pumps with leaded gas will
not.
At a minimum, the gasoline you use
should meet specifications of ASTM
D4814 in the U.S.A. and CGSB 3.5±M93
in Canada.
NOTICE
Do not use leaded gasoline. Use of
leaded gasoline will cause the three±way catalytic converter to lose its ef-fectiveness and the emission control
system to function improperly. Also,this can increase maintenance costs.
ProCarManuals.com

'01 TUNDRA_U (L/O 0008)
1722001 TUNDRA (OM 34416U)
OCTANE RATING
Select Octane Rating 87 (Research Oc-
tane Number 91) or higher.
Use of unleaded gasoline with an octane
rating or research octane number lower
than stated above will cause persistent
heavy knocking. If it is severe, this will
lead to engine damage.
If your engine knocks...
If you detect heavy knocking even when
using the recommended fuel, or if you
hear steady knocking while holding a
steady speed on level roads, consult your
Toyota dealer.
However, now and then, you may notice
light knocking for a short time while accel-
erating or driving up hills. This is no need
of concern.
GASOLINE CONTAINING DETERGENT
ADDITIVES
Toyota recommends the use of gasoline
that contains detergent additives to
avoid build±up of engine deposits.
However, all gasoline sold in the U.S.
contains detergent additives to keep clean
and/or clean intake systems. QUALITY GASOLINE
Automotive manufacturers in the U.S.,
Europe and Japan have developed a
specification for quality fuel named
World±Wide Fuel Charter (WWFC) that
is expected to be applied world wide.
The WWFC consists of three categories
that depend on required emission lev-
els. In the U.S., category 3 has been
adopted. The WWFC improves air quali-
ty by providing for better emissions in
vehicle fleets, and customer satisfaction
through better vehicle performance.
CLEANER BURNING GASOLINE
Cleaner burning gasoline, including re-
formulated gasoline that contains oxy-
genates such as ethanol or MTBE is
available in many areas.
Toyota recommends the use of cleaner
burning gasoline and appropriately blended
reformulated gasoline. These types of gas-
oline provide excellent vehicle perfor-
mance, reduce vehicle emissions, and im-
prove air quality.
OXYGENATES IN GASOLINE
Toyota allows the use of oxygenate
blended gasoline where the oxygenate
content is up to 10% ethanol or 15%
MTBE. If you use gasohol in your
Toyota, be sure that it has an octane
rating no lower than 87.
Toyota does not recommend the use of
gasoline containing methanol.
SULFUR IN GASOLINE
If your vehicle is certified to California
Emission Regulations, the vehicle is de-
signed to operate on California cleaner
burning gasoline (CBG) that contains
lower sulfur. If you cannot use Califor-
nia CBG, your emission control system
may suffer damage and turn on the
Malfunction Indicator Lamp.
If the malfunction is caused by the type
of fuel used, repairs may not be covered
by your warranty.
ProCarManuals.com

'01 TUNDRA_U (L/O 0008)
1732001 TUNDRA (OM 34416U)
GASOLINE CONTAINING MMT
Some gasoline contain an octane en-
hancing additive called MMT (Methylcy-
clopentadienyl Manganese Tricarbonyl).
Toyota does not recommend the use of
gasoline that contains MMT. If fuel con-
taining MMT is used, your emission con-
trol system may be adversely affected.
The Malfunction Indicator Lamp on the in-
strument cluster may come on. If this hap-
pens, contact your Toyota dealer for ser-
vice.
GASOLINE QUALITY
In a very few cases, you may experience
driveability problems caused by the partic-
ular gasoline that you are using. If you
continue to have unacceptable driveability,
try changing gasoline brands. If this does
not rectify your problem, then consult your
Toyota dealer.NOTICE
Do not use gasohol other than
stated above. It will cause fuel sys-tem damage or vehicle performanceproblems.
If driveab ility problems occur (poor
hot starting, vaporizing, engine knock, etc.), discontinue the use.
Take care not to spill gasohol dur-ing refueling. Gasohol may cause
paint damage.
FUEL TANK CAPACITY
100 L (26.4 gal., 22.0 Imp. gal.)
Operation in foreign countries
If you plan to drive your Toyota in
another country...
First, comply with the vehicle registration
laws.
Second, confirm the availability of the cor-
rect fuel (unleaded and minimum octane
number).
ProCarManuals.com

'01 TUNDRA_U (L/O 0008)
1742001 TUNDRA (OM 34416U)
Three±way catalytic converters
5VZ±FE engine
2UZ±FE engine (type A)
2UZ±FE engine (type B)
The three±way catalytic converter is an
emission control device installed in the
exhaust system.
The purpose is to reduce pollutants in the
exhaust gas.
CAUTION

Keep people and combustible mate-
rials away from the exhaust pipe
while the engine is running. The
exhaust gas is very hot.

Do not drive, idle or park your ve-
hicle over anything that might burn
easily such as grass, leaves, paper
or rags.
ProCarManuals.com

'01 TUNDRA_U (L/O 0008)
1752001 TUNDRA (OM 34416U)
NOTICE
A large amount of unburned gases
flowing into the three±way catalyticconverter may cause it to overheatand create a fire hazard. To prevent
this and other damage, observe thefollowing precautions:
Use only unleaded gasoline.
Do not drive with an extremely lowfuel level; running out of fuel could
cause the engine to misfire, creat-ing an excessive load on the three±way catalytic converter.
Do not allow the engine to run atidle speed for more than 20 minu-
tes.
Avoid racing the engine.
Do not push±start or pull±start yourvehicle.
Do not turn off the ignition while
the vehicle is moving.
Keep your engine in good runningorder. Malfunctions in the engineelectrical system, electronic ignitionsystem/distributor ignition system
or fuel systems could cause an ex-tremely high three±way catalyticconverter temperature.
If the engine becomes difficult tostart or stalls frequently, take yourvehicle in for a check±up as soon
as possible. Remember, your Toyotadealer knows your vehicle and itsthree±way catalytic converter sys-
tem best.
To ensure that the three±way cata-lytic converter and the entire emis-sion control system operate proper-ly, your vehicle must receive the
periodic inspections required by theToyota Maintenance Schedule. Forscheduled maintenance information,
refer to the ªScheduled MaintenanceGuideº or ªOwner 's Manual Supple-mentº.
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.
ProCarManuals.com

'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
ProCarManuals.com