EM0KR±10
A04458
Compression
Gauge
± ENGINE MECHANICALCOMPRESSION
EM±3
2582 Author: Date:
2005 SEQUOIA (RM1146U)
COMPRESSION
INSPECTION
HINT:
If there is lack of power, excessive oil consumption or poor fuel
economy, measure the compression pressure.
1. WARM UP AND STOP ENGINE
Allow the engine to warm up to normal operating temperature.
2. REMOVE SPARK PLUGS (See page IG±1)
3. CHECK CYLINDER COMPRESSION PRESSURE
(a) Insert a compression gauge into the spark plug hole.
(b) Fully open the throttle.
(c) While cranking the engine, measure the compression
pressure.
HINT:
Always use a fully charged battery to obtain engine speed of
250 rpm or more.
(d) Repeat steps (a) through (c) for each cylinder.
NOTICE:
This measurement must be done in as short a time as pos-
sible.
Compression pressure:
1,373 kPa (14.0 kgf/cm
2, 199 psi) or more
Minimum pressure:
1,030 kPa (10.5 kgf/cm
2, 149 psi)
Difference between each cylinder:
98 kPa (1.0 kgf/cm
2, 14 psi) or less
(e) If the cylinder compression in one or more cylinders is low,
pour small amount of engine oil into the cylinder through
the spark plug hole and repeat steps (a) through (c) for
cylinders with low compression.
If adding oil helps the compression, chances are
that the piston rings and/or cylinder bore are worn
or damaged.
If pressure stays low, a valve may be sticking or
seating is improper, or there may be leakage past
the gasket.
4. REINSTALL SPARK PLUGS (See page IG±1)
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Operate the multi±information display
with the ignition switch on.
When the ignition switch is turned to
ªONº, the last previously used mode dis-
played just before the ignition switch is
turned off will appear.
When the instrument panel lights are
turned on, the brightness of the display
may be reduced.
ÐBefore using the
multi±information display
Indication
English/U.S.
Customary
System (E)
Metric (M)Outside
temperature
F
CInstantaneous fuel consumption/
Average fuel consumption
MPG
L/100 kmDistance to empty
MI
km
ªE/Mº button
This button is used to switch between English/U.S. Customary System and
metric units.
Each time you push this button, the display switches. This is also linked to the
multi±information display and the front and rear air conditioning displays. The display
variations are as follows;
The initial mode will be English/U.S. Customary System units, however, if the unit
is switched to metric and ignition switch is off, it will display metric units when the
ignition switch is turned to on.
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This device complies with Part 15 of the
FCC Rules and with RSS±210 of the IC
Rules. Operation is subject to the fol-
lowing two conditions: (1) This device
may not cause harmful interference, and
(2) this device must accept any interfer-
ence received, including interference
that may cause undesired operation.
WARNING: This transmitter has been
tested and complies with FCC and IC
rules. Changes or modifications not
expressly approved by the party re-
sponsible for compliance could void
the user's authority to operate the
device.The outside temperature and cruise in-
formation display indicates the follow-
ing information.
1. Outside temperature
2. Average fuel consumption
3. Instantaneous fuel consumption
4. Distance to empty
5. Display off (no compass)
Every time you push the ªMODEº button,
the display toggles through this informa-
tion.
During the off mode, the compass display
is also turned off.
The displayed values in the cruise infor-
mation display indicate general driving
conditions. Accuracy varies with driving
habits and road conditions.
To set the unit, push the ªE/Mº button
until the desired unit display appears. (At
this time, front and rear air conditioning
displays also change.)
ÐOutside temperature and
cruise information display
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1. Outside temperature
The outside temperature display indi-
cates the outside air temperature.
The displayed value is updated every 1
second.
The displayed temperature ranges from
±30C (±22F) up to 50C (122F).
If an abnormality exists in the connection
of the outside air temperature sensor,
ª±±Cº (ª±±Fº) will appear on the display.
If ª±±Cº (ª±±Fº) appears on the display,
contact your Toyota dealer.
There may be a case that ª±±Cº (ª±±Fº)
appears momentarily when the ignition is
quickly turned to ªONº. It is normal if it
goes out soon.
2. Average fuel consumption
(ªAVGº)
Average fuel consumption is calculated
and displayed based on total driving
distance and total fuel consumption
with the engine running.
The displayed value is updated every 1
seconds.
To reset the calculations, return the mode
to ªAVGº and push and hold the ªMODEº
and ªE/Mº button simultaneously for 2 sec-
onds.3. Instantaneous fuel consumption
(ªINSTº)
The instantaneous fuel consumption is
calculated and displayed based on dis-
tance and fuel consumption for 1 sec-
onds with the engine running.
The displayed value is updated every 1
seconds.
Note that an accurate figure may not be
shown in the following cases.
The vehicle is stopped with the engine
running. (The display will indicate the
extremely high fuel consumption.)
The vehicle is driving down a long
slope, applying the engine brake. (The
display will indicate the extremely low
fuel consumption.)
The calculation is reset when the ignition
switch is turned off.
4. Distance to empty
(ªDTEº)
The distance the vehicle can travel with
the remaining fuel is calculated and
displayed based on the quantity of re-
maining fuel and past fuel consumption.
The displayed value is updated every 1
second.Every time you refuel the vehicle, the cal-
culation is reset.
The actual driving range varies with driv-
ing habits and road conditions. If fuel con-
sumption is good, the driving range will be
longer than indicated. If fuel consumption
is poor, the driving range will be shorter
than indicated.
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INFORMATION BEFORE DRIVING YOUR
TOYOTA
Information before driving your Toyota
Off±road vehicle precautions334 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Break±in period335 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel335 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel pump shut off system337 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation in foreign countries337 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Three±way catalytic converters338 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine exhaust cautions339 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Facts about engine oil consumption339 . . . . . . . . . . . . . . . . . . . . . . . . . .
Iridium±tipped spark plugs341 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake system341 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Brake pad wear limit indicators345 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Your Toyota's identification345 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Theft prevention labels346 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Suspension and chassis346 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tire information347 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vehicle load limits355 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Cargo and luggage356 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Types of tires358 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SECTION 2
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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.
Oil consumption: Max. 1.0 L per 1000
km (1.1 qt./600 miles, 0.9 lmp. qt./600
miles)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 ªChecking the engine oil levelº on
page 424 in Section 7±2.
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Keep ice and snow from accumulating
under the fenders.
Ice and snow built up under your fenders
can make steering difficult. During bad
winter driving, stop and check under the
fenders occasionally.
Depending on where you are driving,
we recommend you carry some emer-
gency equipment.
Some of the things you might put in the
vehicle are tire chains, window scraper,
bag of sand or salt, flares, small shovel,
jumper cables, etc.
Your vehicle is not designed to be
dinghy towed (with four wheels on the
ground) behind a motorhome.
NOTICE
Do not tow your vehicle with four
wheels on the ground. This may
cause serious damage to your vehicle.
Your vehicle is designed primarily as a
passenger±and±load±carrying vehicle.
Towing a trailer will have an adverse
effect on handling, performance, braking,
durability and driving economy (fuel
consumption, etc.). Your safety and
satisfaction depend on the proper use of
correct equipment and cautious driving
habits. For your safety and the safety of
others, you must not overload your
vehicle or trailer. Ask your local Toyota
dealer for further details before towing.
CAUTION
Vehicles with rear height control air
suspension system: When disconnect-
ing a trailer, set the vehicle height to
ªLOº in automatic control mode, then
select manual control mode by push-
ing the mode select switch. Other-
wise, the vehicle height may change
because of the automatic leveling
function, resulting in an accident. For
details, see ªRear height control air
suspensionº on page 189 in Section
1±7.
Dinghy towing Trailer towing
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Improving fuel economy is easyÐjust take
it easy. It will help make your vehicle last
longer, too. Here are some specific tips
on how to save money on both fuel and
repairs:
Keep your tires inflated at the cor-
rect pressure. Underinflation causes
tire wear and wastes fuel. See page
429 in Section 7±2 for instructions.
Do not carry unneeded weight in
your vehicle. Excess weight puts a
heavier load on the engine, causing
greater fuel consumption.
Avoid lengthy warm±up idling. Once
the engine is running smoothly, begin
drivingÐbut gently. Remember, howev-
er, that on cold winter days this may
take a little longer.
Keep the automatic transmission
overdrive turned on when engine
braking is not required. Driving with
the overdrive off will reduce the fuel
economy. (For details, see ªAutomatic
transmissionº on page 173 in Section
1±7.)
Accelerate slowly and smoothly.
Avoid jackrabbit starts. Get into high
gear as quickly as possible.
Avoid long engine idling. If you have
a long wait and you are not in traffic,
it is better to turn off the engine and
start again later.
Avoid engine lugging or over±rev-
ving. Use a gear position suitable for
the road on which you are travelling.
Avoid continuous speeding up and
slowing down. Stop±and±go driving
wastes fuel.
Avoid unnecessary stopping and
braking. Maintain a steady pace. Try
to time the traffic signals so you only
need to stop as little as possible or
take advantage of through streets to
avoid traffic lights. Keep a proper dis-
tance from other vehicles to avoid sud-
den braking. This will also reduce wear
on your brakes.
Avoid heavy traffic or traffic jams
whenever possible.
Do not rest your foot on the brake
pedal. This causes premature wear,
overheating and poor fuel economy.
Maintain a moderate speed on high-
ways. The faster you drive, the greater
the fuel consumption. By reducing your
speed, you will cut down on fuel con-
sumption.
Keep the front wheels in proper
alignment. Avoid hitting the curb and
slow down on rough roads. Improper
alignment not only causes faster tire
wear but also puts an extra load on
the engine, which, in turn, wastes fuel.
Keep the bottom of your vehicle free
from mud, etc. This not only lessens
weight but also helps prevent corro-
sion.
Keep your vehicle tuned±up and in
top shape. A dirty air cleaner, improp-
er valve clearance, dirty plugs, dirty oil
and grease, brakes not adjusted, etc.
all lower engine performance and con-
tribute to poor fuel economy. For longer
life of all parts and lower operating
costs, keep all maintenance work on
schedule, and if you often drive under
severe conditions, see that your vehicle
receives more frequent maintenance.
(For scheduled maintenance informa-
tion, please refer to the ªScheduled
Maintenance Guideº or ªOwner 's Manu-
al Supplementº.)
How to save fuel and make
your vehicle last longer