2005 Lexus ES330 check engine

MAINTENANCE
327
Where to go for service?
Lexus technicians are well −trained specialists and are kept up
to date with the latest service information through technical
bulletins, service tips, and in −dealership training programs.
They are well informed about the operation of all the systems
on your vehicle.
You can be confident that your Lexus dealer’s service
department performs the best job to meet the maintenance
requirements of your vehicle.
Your copy of the repair order is proof that all required
maintenance has been performed for warranty coverage. If
any problems should arise with your vehicle while under
warranty, your Lexus dealer will promptly take care of it. Again,
be sure to keep a copy of the repair order for any service
performed on your Lexus.
What about doityourself maintenance?
Many of the maintenance items are easy to do yourself, if you
have a little mechanical ability and a few basic automotive
tools. Simple instructions for how to perform them are
presented in Section 6.
If you are a skilled do −it− yourself mechanic, the Lexus service
manuals are recommended. Please be aware that
do−it−yourself maintenance can affect your warranty
coverage. See your “Owner’s Guide”, “Owner’s Manual
Supplement” or “Warranty Booklet” for the details.
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 with adequate ventilation if you
run the engine.
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 403 for
additional information.
Engine coolant level
Make sure the coolant level is between the “F” and “L” lines on
the see− through reservoir when the engine is cold. See page
355 for additional information.
Radiator, condenser and hoses
Check that the front of the radiator and condenser are clean
and not blocked with leaves, dirt, or insects. See page 356 for
additional information.

MAINTENANCE
328Battery
Check the battery condition by the indicator color. See page
396 for additional information.
Brake fluid level
Make sure the brake fluid level is correct. See page 364 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 351 for
additional
information.
Power steering fluid level
Check the level through the reservoir. The level should be in
the “HOT” or “COLD” range depending on the fluid
temperature. See page 365 for additional information.
Exhaust system
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 caution” on page 255.)
Vehicle interior
Items listed below should be checked regularly, e.g. while
performing periodic services, cleaning the vehicle, etc.
Lights
Make sure the headlight, stop lights, tail lights, turn signal
lights, and other lights are working. Check headlight aim.
Service reminder indicators and warning buzzers
Check that all service reminder indicators and warning buzzers
function properly.
Steering wheel
Check that it has the specified freeplay. Be alert for changes
in steering condition, such as hard steering, excessive freeplay
or strange noise.
Seats
Check that all front seat controls such as seat adjusters,
seatback recliner, etc. operate smoothly. Check that the head
restraints move up and down smoothly and that the locks hold
securely in any latched position.
Seat belts
Check that the seat belt system such as buckles, retractors
and anchors operate properly and smoothly. Make sure the
belt webbing is not cut, frayed, worn or damaged.

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329
Accelerator pedal
Check
the pedal for smooth operation and uneven pedal ef fort
or catching.
Brake pedal
Check the pedal for smooth operation and the proper
clearance and freeplay. Check the brake booster function.
Brakes
In a safe place, check that the brakes do not pull to one side
when applied.
Parking brake
Check that the pedal has the proper travel and that, on a safe
incline, your vehicle is held securely with only the parking brake
applied.
Automatic transmission “Park” mechanism
On a safe incline, check that your vehicle is held securely with
the selector lever in “P” position and all brakes released.
Vehicle exterior
Items listed below should be performed from time to time,
unless otherwise specified.
Wheel nuts
When checking the tires, make sure to check the nuts for
looseness. Tighten them if necessary.
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
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Tire inflation pressure
Check the tire inflation pressure with a gauge every
two weeks, or at least once a month and adjust as
shown on the tire and loading information label. See
page 366 for additional information.
Tire surface
Check the tires carefully for cuts, damage or
excessive wear. See page 381 for additional
information.
Tire rotation
Rotate the tires according to the maintenance
schedule. (For scheduled maintenance information,
please refer to the “Owner’s Manual
Supplement/Scheduled Maintenance”.) See page 380
for additional information.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

INTRODUCTION
338
Use eye protection whenever you work on or under
your vehicle where you may be exposed to flying or
falling material, fluid spray, etc.
 Be extremely cautious when working on the battery.
It contains poisonous and corrosive sulfuric acid.
NOTICE
Remember that battery and ignition cables carry high
currents or voltages. Be careful of accidentally
causing a short circuit.
 Before closing the engine hood, check to see that you
have not forgotten any tools, rags, etc.
 Do not drive with the air cleaner removed, or
excessive engine wear could result. Also backfiring
could cause a fire in the engine compartment.
 Do not overfill automatic transmission fluid, or the
transmission could be damaged.
 Be careful not to scratch the glass surface with the
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):
“Toyota Genuine Motor Oil” or equivalent
See page 353 for details about engine oil selection.
Tools:
 Rag or paper towel
 Funnel (only for adding oil)

INTRODUCTION
339
Checking the engine coolant level
Parts (if level is low):
“Toyota Super Long Life Coolant” or similar high quality
ethylene glycol based non −silicate, non− amine, non−nitrite,
and non −borate coolant with long −life hybrid organic acid
technology (Coolant with long −life hybrid organic acid
technology is a combination of low phosphates and organic
acids.)
“Toyota Super Long Life Coolant” is a mixture of 50% coolant
and 50% deionized water (for the U.S.A.) or 55% coolant
and 45% deionized water (for Canada). This coolant
provides protection down to about −35C (−31F) (for the
U.S.A.) or about −42C (− 44F) (for Canada).
Tools:
 Funnel (only for adding coolant)
Checking brake fluid
Parts (if level is low):
FMVSS No. 116 DOT 3 or SAE J1703 brake fluid
Tools:
 Funnel (only for adding fluid)
Checking power steering fluid
Parts (if level is low):
Automatic transmission fluid DEXRON
II or III
Tools:
 Rag or paper towel
 Funnel (only for adding fluid)
Checking battery condition
Tools:
Warm water
 Baking soda
 Grease
 Conventional wrench (for terminal clamp bolts)
Checking and replacing the blade type fuses
Parts (if replacement is necessary):
Fuse with same amperage rating as original

SECTION 6 – 2
343
SERVICE PROCEDURES AND
SPECIFICATIONS
Engine
Specifications344
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. . . . . .
Fuel 347
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . . . . . . . . . . . . .
Fuel pump shut off system 349
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Facts about engine oil consumption 349
. . . . . . . . . . . . . . . . . . . . . . . .
Used engine oil 351
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . .
Checking the engine oil level 351
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking the engine coolant level 355
. . . . . . . . . . . . . . . . . . . . . . . . . .
Checking the radiator and condenser 356
. . . . . . . . . . . . . . . . . . . . . . .
Spark plugs 357
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. . . . . . . .

ENGINE
346— COOLING SYSTEM
Capacity
9.2 L (9.7 qt., 8.2 Imp. qt.)
Coolant type“Toyota Super Long Life Coolant” or similar high quality ethylene glyco\
l
based non −silicate, non −amine, non −nitrite, and non −borate coolant
with long −life hybrid organic acid technology (Coolant with long −life
hybrid organic acid technology is a combination of low phosphates and
organic acids.)
Do not use plain water alone.
NOTE:
“Toyota Super Long Life Coolant” is used in your Lexus vehicle at factory fil\
l. In order to avoid technical problems, only use “Toyota
Super Long Life Coolant” or similar high quality ethylene glycol based non −silicate, non −amine, non −nitrite, and non −borate coolant
with long−life hybrid organic acid technology. (Coolant with long −life hybrid organic acid technology is a combination of low
phosphates and organic acids.) Please contact your Lexus dealer for further deta\
ils.
— IGNITION SYSTEM
Spark plug — Make DENSO NGK
— Gap
SK20R11
IFR6A11
1.1 mm (0.043 in.)
— ELECTRICAL SYSTEM
Battery Open voltage at 20C (68F):
Charging rates
12.6 — 12.8 V Fully charged
12.2 — 12.4 V Half charged
11.8 — 12.0 V Discharged
[Voltage that is checked 20 minutes after the key is removed with all the
lights turned off]
5 A max.