1999 Lexus ES300 engine

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.

SECTION 6 ± 1
359
SERVICE PROCEDURES AND
SPECIFICATIONS
Introduction
Vehicle identification359
. . . . . . . . . . . . . . . . . . . . . . . . . . . Engine com
partment overview
.
. . . . . . . . . . . . . . . . . 362
Do±it±yourself service precautions 363
. . . . . . . . . . . . . .
Parts and tools 365
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VEHICLE IDENTIFICATION
61E001

INTRODUCTION
361
61E003±2
The engine number is stamped on the engine block
as shown.

61E004a
INTRODUCTION
362
ENGINE COMPARTMENT OVERVIEW
1 Engine oilfiller cap
2 Brake fluidreservoir
3 Fuse box(U.S.A. andCanada)
4 Battery
5 Fuse box
6 Engine oil
leveldipstick
7 Fuse box
(U.S.A. andCanada)
8 Washer
fluid tank
9 Enginecoolantreservoir
10 Power

INTRODUCTION
364
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
near 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.

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
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
370
SPECIFICATIONS
± GENERALModel
Type
Bore and stroke
Displacement
Valve clearance (engine cold) Intake
Exhaust
Drive belt tension (with Borroughs drive belt tension
gauge No. BT±33±73F)
1MZ ± FE
6 cylinder V type, 4 cycle, gasoline
87.5 X 83 mm (3.44 X 3.27 in.)
2995 cm
3 (182.7 cu.in.)
0.15 ± 0.25 mm (0.006 ± 0.010 in.)
0.25 ± 0.35 mm (0.010 ± 0.014 in.)
115
20 lb.
± LUBRICATION SYSTEM