engine lexus LS400 2000 Engine / LEXUS 2000 LS400 (OM50533U) Manual Online

MAINTENANCE
392Parking 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 ºParkº mechanism
On a safe incline, check that your vehicle is held
securely with the selector lever in ºPº position and all
brakes released.
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
464 for additional information.
Engine coolant level
Make sure the coolant level is between the Upper and
Lower lines on the see±through reservoir when the
engine is cold. See page 417
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 453 for additional information.
Brake fluid level
Make sure the brake fluid level is correct. See page 427
for additional information.

MAINTENANCE
393
Engine oil level
Check
the level on the dipstick with the engine turned off
and the vehicle parked on a level spot. See page 413 for
additional information.
Power steering fluid level
Check the level on the dipstick. The level should be in
the ºHOTº or ºCOLDº range depending on the fluid
temperature. See page 428 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 cautions in
Section 3±1.)
DOES YOUR VEHICLE NEED REPAIRING?
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

SECTION 6 ± 1
395
SERVICE PROCEDURES AND
SPECIFICATIONS
Introduction
Vehicle identification395
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Engine compartment overview 398
. . . . . . . . . . . . . . . . . .
Do±it±yourself service precautions 399
. . . . . . . . . . . . . .
Parts and tools 401
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VEHICLE IDENTIFICATION
61L002

INTRODUCTION
397
61L004b
The engine number is stamped on the engine block
as shown.

61L005b
INTRODUCTION
398
ENGINE COMPARTMENT OVERVIEW
1 Engine oilfiller cap
2 Engine oilleveldipstick
3 Brake fluid
reservoir
4 Fuse box
5 Battery
6 Washerfluid tank
7 Power
steeringfluidreservoir
8 Engine
coolantreservoir

INTRODUCTION
400
CAUTION

When the engine is running, keep hands, clothing,
and tools away from the moving fan and engine drive
belt. (Removing rings, watches, and ties is
advisable.)

Right after driving, the engine compartment ± the
engine, radiator, exhaust manifold and power
steering fluid reservoir, etc. ± will be hot. So be
careful not to touch them. Oil and other fluids may
also be hot.

Do not smoke, cause sparks or allow open flames
around fuel or the battery. Their fumes are
flammable.

Be extremely cautious when working on the battery.
It contains poisonous and corrosive sulfuric acid.

Do not get under your vehicle with just the body jack
supporting it. Always use automotive jack stands or
other solid supports.

Be sure the ignition is off if you work near the electric
cooling fan or radiator grille. With the ignition on, the
electric cooling fan may automatically start to run if
the air conditioning is on and/or if the coolant
temperature is high.

Use eye protection whenever you work on or under
your vehicle where you may be exposed to flying or
falling material, fluid spray, etc.

INTRODUCTION
401
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 416.
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 417
for instructions.

Demineralized or distilled water
Tools:

Funnel (only for adding coolant)

SECTION 6 ± 2
403
SERVICE PROCEDURES AND
SPECIFICATIONS
Engine
Specifications404
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Fuel 407
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . .
Facts about engine oil consumption 409
. . . . . . . . . . . . .
Used engine oil 411
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Checking the engine oil level 413
. . . . . . . . . . . . . . . . . . .
Checking the engine coolant level 417
. . . . . . . . . . . . . . .
Spark plugs 421
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ENGINE
404
SPECIFICATIONS
± GENERAL

62L005±1
Temperature range anticipated before next oil change
ENGINE
405
Model
Type
Bore and stroke
Displacement
Valve clearance (engine cold)
Intake
Exhaust
Drive belt tension
1UZ±FE
8 cylinder V type, 4 cycle, gasoline
87.5 X 82.5 mm (3.44 X 3.25 in.)
3969 cm
3 (242.1 cu.in.)
0.15 ± 0.25 mm (0.006 ± 0.010 in.)
0.25 ± 0.35 mm (0.010 ± 0.014 in.)
Automatic adjustment
± LUBRICATION SYSTEM Oil capacity Drain and refillwith filter
without filter
Oil grade

Recommended oil viscosity (SAE):
5.6 L (5.9 qt., 4.9 lmp.qt.)
5.3 L (5.6 qt., 4.7 lmp.qt.)
API SJ, ºEnergy±Conservingº multigrade engine oil or
ILSAC multigrade engine oil