Check engine Lexus ES300 1999 s (in English) Owner's Guide

IN CASE OF AN EMERGENCY
321
CAUTION
When the engine is running, keep hands and clothing
away from the moving fan and engine drive belt.
 Do not attempt to remove the radiator cap when the
engine and radiator are hot. Serious injury could
result from scalding hot fluid and steam blown out
under pressure.
If the cooling fan is not operating or the coolant is not in
the acceptable range, turn off the engine and call your
Lexus dealer.
If both conditions are O.K., after the engine coolant
temperature has cooled to normal, continue driving your
vehicle.
If the engine coolant temperature does not cool down, or
your vehicle overheats again, have it checked as soon
as possible by your Lexus dealer.IF YOU HAVE A FLAT TIRE
1. Reduce your speed gradually, keeping a straight line.
Move cautiously off the road to a safe place ± well away
from the traffic. Avoid stopping on the center divider of
a highway. Park on a level spot with firm ground.
2. Stop the engine and turn on your emergency flashers.
3. Firmly set the p arking brake and put the transmission
in ºPº.
4. Have everyone get out of the vehicle on the side away
from traffic.
5. Read the following instructions thoroughly.

IN CASE OF AN EMERGENCY
347
40E023
3Push down the shift lock override button. You can
shift out of ºPº position only while pushing the
button.
4Shift into ºNº position.
Insert the cover. Start the engine. For your safety,
keep the brake pedal depressed.
Be sure to have the system checked by your Lexus
dealer as soon as possible.

MAINTENANCE
353
GENERAL MAINTENANCE
Listed below are the general maintenance items that
should be performed at the intervals specified. It is
recommended that any problem you notice be brought
to the attention of your Lexus dealer or qualified service
shop for their advice.
CAUTION
Make these checks only where adequate ventilation can
be obtained if you run the engine.
Vehicle exterior
Items listed below should be performed from time to
time, unless otherwise specified.
Tire pressure
Check the pressure with a gauge every two weeks, or at
least once a month and adjust as shown on the tire
pressure label. See page 397 for additional information.
Tire surface
Check the tires carefully for cuts, damage or excessive
wear. See page 399 for additional information.
Wheel nuts
When checking the tires, make sure to check the nuts for
looseness. Tighten them if necessary. Tire rotation
Rotate
the tires every 12000 km (7500 miles). See page
398 for additional information.
Fluid leaks
Check underneath for leaking fuel, oil, water or other
fluid after the vehicle has been parked for a while. If you
smell fuel fumes or notice any leak, have the cause
found and corrected immediately.
Doors and engine hood
Check that all doors, including trunk lid, operate
smoothly and all latches lock securely. Make sure the
engine hood secondary latch secures the hood when the
primary latch is released.

MAINTENANCE
355
Engine compartment
Items listed below should be checked from time to
time, e.g. each time when refueling.
Washer fluid
Make sure there is sufficient fluid in the tank. See page
432 for additional information.
Engine coolant level
Make sure the coolant level is between the ºFULLº and
ºLOWº lines on the see±through reservoir when the
engine is cold. See page 383 for additional information.
Battery
Your Lexus has a maintenance free battery. You do not
have to add distilled water. For longer life of the battery,
however, see page 415 for additional information.
Brake fluid level
Make sure the brake fluid level is correct. See page 391
for additional information.
Engine oil level
Check the level on the dipstick with the engine turned off
and the vehicle parked on a level spot. See page 378 for
additional information.
Power steering fluid level
Check the level through the reservoir. The level should
be in the ºHOTº or ºCOLDº range depending on the fluid temperature. See page 393 for additional information.
Exhaust system
Look
for cracks, holes and loose supports. If you notice
any change in the sound of the exhaust or smell exhaust
fumes, have the cause located and corrected
immediately. (See engine exhaust cautions in Section
3±1.)

MAINTENANCE
356
DOES YOUR VEHICLE NEEDREPAIRING?
Be on the alert for changes in performance and sounds,
and visual tip±offs that indicate service is needed. Some
important clues are:

Engine missing, stumbling, or pinging

Appreciable loss of power

Strange engine noises

A fluid leak under the vehicle (However, water
dripping from the air conditioning after use is normal.)

Change in exhaust sound (This may indicate a
dangerous carbon monoxide leak. Drive with the
windows open and have the exhaust system checked
immediately.)

Flat±looking tires, excessive tire squeal when
cornering, uneven tire wear

Vehicle pulls to one side when driving straight on a
level road

Strange noises related to suspension movement

Loss of brake effectiveness, spongy feeling brake
pedal, pedal almost touches floors, vehicle pulls to
one side when braking

Engine coolant temperature continually higher than
normal If you notice any of these clues, take your vehicle to your
Lexus dealer as soon as possible. It probably needs
adjustment or repair.

INTRODUCTION
365
NOTICE

Remember that battery and ignition cablescarry high currents or voltages. Be careful ofaccidentally causing a short circuit.

Before closing the engine hood, check to seethat you have not forgotten any tools, rags, etc.

Do not drive with the air cleaner removed, or
excessive engine wear could result. Alsobackfiring could cause a fire in the enginecompartment.

Do not overfill automatic transmission fluid, orthe transmission could be damaged.

Be careful not to scratch the glass surface withthe wiper frame.
PARTS AND TOOLS
Here is a list of parts and tools you will need to perform
do±it±yourself maintenance. Remember all Lexus parts
are designed in metric sizes, so your tools must be
metric.
Checking the engine oil level
Parts (if level is low):

Use API grade SJ, ºEnergy±Conservingº multigrade
engine oil or ILSAC multigrade engine oil. For
recommended oil viscosity, see page 382.
Tools:

Rag or paper towel

Funnel (only for adding oil)
Checking the engine coolant level
Parts (if level is low):

ªToyota Long Life Coolantº or equivalent
See ºChecking the engine coolant levelº on page 383
for instructions.

Demineralized or distilled water
Tools:

Funnel (only for adding coolant)

SECTION 6 ± 2
369
SERVICE PROCEDURES AND
SPECIFICATIONS
Engine
Specifications370
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel 373
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . .
Facts about engine oil consumption 375
. . . . . . . . . . . . .
Used engine oil 377
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking the engine oil level 378
. . . . . . . . . . . . . . . . . . .
Checking the engine coolant level 383
. . . . . . . . . . . . . . .
Spark plugs 387
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ENGINE
372± IGNITION SYSTEM
Spark plug ± Make DENSO NGK
± Gap
SK20R11
IFR6A11
1.1 mm (0.043 in.)
± ELECTRICAL SYSTEM
Battery ± Maintenance type battery Specific gravity reading at 20 C (68F):
Charging rates Quick charge Slow charge
± Non±maintenance battery Open voltage at 20C (68F):
Charging rates
1.260 Fully charged
1.160 Half charged
1.060 Discharged
15A max.
5A max.
12.7V Fully charged
12.3V Half charged
11.9V Discharged
[Voltage that is checked 20 minutes after the key is
removed with all the lights turned off]
5A max.

ENGINE
376The amount of engine oil consumed depends on the
viscosity of the oil, the quality of the oil and the way
the vehicle is driven.
More oil is consumed under driving conditions such as
high speeds and frequent acceleration and
deceleration.
A new engine consumes more oil, since its pistons,
piston rings and cylinder walls have not become
conditioned.
When judging the amount of oil consumption, keep
in mind that the oil may have become diluted,
making it difficult to judge the true level accurately.
For example, if a vehicle is used for repeated short trips
and consumes a normal 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 proper vehicle
maintenance is to keep the engine oil at the optimum
level so that oil function will not be impaired. Therefore,
it is essential that the oil level be checked regularly.
Lexus 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
ºChecking the engine oil levelº on page 378.

ENGINE
378
CHECKING THE ENGINE OILLEVEL
62E001a
With the engine at operating temperature and turned
off, check the oil level on the dipstick.
1. To get a true reading, the vehicle should be on a level
spot. After turning off the engine, wait a few minutes for
the oil to drain back into the bottom of the engine.
2. Pull out the dipstick, and wipe it clean with a rag.
3. Reinsert the dipstick and push it in as far as it will go,
or the reading will not be correct.