Engine and Chassis for Your Toyota Avalon 4 Door Second Generation (2000-2004)

’03 AVALON U (L/O 0206)  
SECTION 72  
DO−IT−YOURSELF MAINTENANCE  
Engine and Chassis  
Checking the engine oil level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 276  
Checking the engine coolant level . . . . . . . . . . . . . . . . . . . . . . . . . . . . 278  
Checking the radiator and condenser . . . . . . . . . . . . . . . . . . . . . . . . . 280  
Checking brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 280  
Checking power steering fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281  
Checking tire pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 281  
Checking and replacing tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 282  
Rotating tires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284  
Installing snow tires and chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 284  
Replacing wheels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286  
Aluminum wheel precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 286  
2003 AVALON (OM41401U)  
275  
’03 AVALON U (L/O 0206)  
Checking the engine oil level  
NOTICE  
CAUTION  
Low level  
Full level  
z Be careful not to spill the engine  
oil on the vehicle components.  
Be careful not to touch the hot ex-  
haust manifold.  
z Avoid overfilling, or the engine  
could be damaged.  
NOTICE  
z Check the oil level on the dipstick  
once again after adding the oil.  
Be careful not to drop the engine oil  
on the vehicle components.  
Add oil  
O.K.  
Too full  
If the oil level is below or only slightly  
above the low level, add engine oil of  
the same type as already in the engine.  
With the engine at operating tempera-  
ture and turned off, check the oil level  
on the dipstick.  
Remove the oil filler cap and add engine  
oil in small quantities at a time, checking  
the dipstick. We recommend that you use  
a funnel when adding oil.  
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.  
The approximate quantity of oil needed to  
fill between the low level and the full level  
on the dipstick is indicated below for ref-  
erence.  
2. Pull the dipstick out, hold a rag under  
the end and wipe it clean.  
When the level reaches within the correct  
range, install the filler cap hand−tight.  
3. Reinsert the dipstick—push it in as far  
as it will go, or the reading will not be  
correct.  
Oil quantity, L (qt., Imp. qt.):  
1.5 (1.6, 1.3)  
4. Pull the dipstick out and look at the oil  
level while holding  
end.  
a
rag under the  
2003 AVALON (OM41401U)  
276  
’03 AVALON U (L/O 0206)  
ENGINE OIL SELECTION  
SAE 5W−30 is the best choice for good  
fuel economy and good starting in cold  
weather.  
Toyota Genuine Motor Oil” is filled in  
your Toyota vehicle. Use Toyota approved  
Toyota Genuine Motor Oil” or equivalent  
to satisfy the following grade and  
viscosity.  
If SAE 5W−30 is not available, SAE  
10W−30 may be used. However, it  
should be replaced with SAE 5W−30 at  
the next oil change.  
Oil grade:  
API grade SL “Energy−Conserving” or  
ILSAC multigrade engine oil  
Recommended viscosity:  
SAE 5W−30  
API service symbol  
Outside temperature  
ILSAC certification mark  
2003 AVALON (OM41401U)  
277  
’03 AVALON U (L/O 0206)  
Checking the engine coolant  
level  
Oil identification marks  
Look at the see−through coolant reser-  
voir when the engine is cold. The cool-  
ant level is satisfactory if it is between  
the “FULL” and “LOW” lines on the  
reservoir. If the level is low, add ethyl-  
Either or both API registered marks are  
added to some oil containers to help  
you select the oil you should use.  
The API Service Symbol is located any-  
where on the outside of the container.  
ene−glycol type coolant for  
a
proper  
corrosion protection of aluminum com-  
ponents.  
The top portion of the label shows the oil  
quality by API (American Petroleum Insti-  
tute) designations such as SL. The center  
portion of the label shows the SAE viscos-  
ity grade such as SAE 5W−30. “Energy−  
Conserving” shown in the lower portion,  
indicates that the oil has fuel−saving ca-  
pabilities.  
The coolant level in the reservoir will vary  
with engine temperature. However, if the  
level is on or below the “LOW” line, add  
coolant. Bring the level up to the “FULL”  
line.  
Always use ethylene−glycol type coolant  
for a proper corrosion protection of alumi-  
num components. See information in the  
next column.  
To ensure the best possible lubrication  
performance for your engine, the “Toyota  
Genuine Motor Oil” range is available,  
which has been specifically tested and ap-  
proved for all Toyota engines.  
The ILSAC (International Lubricant Stan-  
dardization and Approval Committee) Certi-  
fication Mark is displayed on the front of  
the container.  
If the coolant level drops within a short  
time after replenishing, there may be a  
leak in the system. Visually check the  
radiator, hoses, radiator cap and drain  
cock and water pump.  
Please contact your Toyota dealer for fur-  
ther details of the “Toyota Genuine Motor  
Oil” range.  
If you can find no leak, have your Toyota  
dealer test the cap pressure and check  
for leaks in the cooling system.  
2003 AVALON (OM41401U)  
278  
’03 AVALON U (L/O 0206)  
Read the coolant container for information  
CAUTION  
on freeze protection. Follow the manufac-  
turer’s directions for how much to mix  
with plain water (preferably demineralized  
water or distilled water). The total capacity  
of the cooling system is given in Section  
8.  
To prevent burning yourself, do not  
remove the radiator cap when the en-  
gine is hot.  
Coolant type selection  
We recommend to use 50% solution for  
your Toyota, to provide protection down to  
about −35_C (−31_F). When it is extreme-  
ly cold, to provide protection down to  
about −50_C (−58_F), 60% solution is rec-  
ommended. Do not use more than 70%  
solution for better coolant performance.  
Use of improper coolants may damage  
your engine cooling system. Your coolant  
must contain ethylene−glycol type coolant  
for a proper corrosion protection of your  
engine that  
components.  
contains  
aluminum  
The engine cooling system is integral to  
maximizing performance of your Toyota  
vehicle. In line with this, it is strongly  
recommended that you use “Toyota  
Genuine Long Life Coolant” for protecting  
the system, as it is an ethylene−glycol  
based premium antifreeze coolant with  
excellent corrosion protection properties  
that has been specifically formulated for  
use in Toyota vehicles.  
We have used “Toyota Genuine Long Life  
Coolant” in your Toyota vehicle. In order  
to avoid technical problems, we strongly  
recommend using “Toyota Genuine Long  
Life Coolant” or equivalent.  
NOTICE  
Do not use alcohol type antifreeze or  
plain water alone.  
In addition to preventing freezing and  
subsequent damage to the engine, this  
type of coolant will also prevent corrosion.  
Further supplemental inhibitors or additives  
are neither needed nor recommended.  
Please contact your Toyota dealer for fur-  
ther details of the “Toyota Genuine Long  
Life Coolant” range.  
2003 AVALON (OM41401U)  
279  
’03 AVALON U (L/O 0206)  
Checking the radiator and  
condenser  
Checking brake fluid  
If any of the above parts are extremely  
dirty or you are not sure of their condi-  
tion, take your vehicle to Toyota dealer.  
If the level is low, add SAE J1703 or  
FMVSS No.116 DOT 3 brake fluid to the  
brake reservoir.  
Remove and replace the reservoir cap by  
hand. Fill the brake fluid to the dotted  
line. This brings the fluid to the correct  
level when you put the cap back on.  
CAUTION  
To prevent yourself from burning, be  
careful not to touch the radiator or  
condenser when the engine is hot.  
Use only newly opened brake fluid. Once  
opened, brake fluid absorbs moisture from  
the air, and excess moisture can cause a  
dangerous loss of braking.  
NOTICE  
To prevent damage to the radiator  
and condenser, do not perform the  
work by yourself.  
CAUTION  
To check the fluid level, simply look at  
the see−through reservoir. The level  
should be between the “MAX” and  
“MIN” lines on the reservoir.  
Take care when filling the reservoir  
because brake fluid can harm your  
eyes and damage painted surfaces. If  
fluid gets in your eyes, flush your  
eyes with clean water immediately. If  
you still feel uncomfortable with your  
eyes, go to the doctor.  
It is normal for the brake fluid level to go  
down slightly as the brake pads wear. So  
be sure to keep the reservoir filled.  
If the reservoir needs frequent refilling, it  
may indicate a serious mechanical prob-  
lem.  
NOTICE  
If you spill the fluid, be sure to wash  
it off with water to prevent it from  
damaging the parts or paint.  
2003 AVALON (OM41401U)  
280  
’03 AVALON U (L/O 0206)  
Checking power steering fluid  
Checking tire pressure  
Clean all dirt from outside of the reservoir  
tank and look at the fluid level. If the fluid  
is cold, the level should be in the “COLD”  
range. Similarly, if it is hot, the fluid level  
should be in the “HOT” range. If the level  
is at the low side of either range, add  
automatic transmission fluid DEXRONrII or  
III to bring the level within the range.  
If cold  
O.K.  
If hot  
O.K.  
Open  
Close  
If cold  
add  
To remove the reservoir cap, turn it coun-  
terclockwise and lift up. To reinstall it,  
turn it clockwise. After replacing the reser-  
voir cap, visually check the steering box  
case, vane pump and hose connections  
for leaks or damage.  
If hot  
add  
Check the fluid level through the reser-  
voir. If necessary, add automatic trans-  
mission fluid DEXRONrII or III.  
Keep your tire pressures at the proper  
level.  
CAUTION  
The recommended cold tire pressures, tire  
size and the vehicle capacity weight are  
given in Section 8. They are also on the  
tire pressure label as shown.  
If the vehicle has been driven around 80  
km/h (50 mph) for 20 minutes (a little  
more in frigid temperatures), the fluid is  
hot (60_C—80_C or 140_F—175_F). You  
may also check the level when the fluid  
The reservoir tank may be hot so be  
careful not to burn yourself.  
You should check the tire pressures every  
two weeks, or at least once a month. And  
do not forget the spare!  
NOTICE  
is  
10_C—30_C or 50_F—85_F) if the engine  
cold  
(about  
room  
temperature,  
Avoid overfilling, or the power steer-  
ing could be damaged.  
Incorrect tire pressure may waste fuel,  
reduce the comfort of driving, reduce tire  
life and make your vehicle less safe to  
drive.  
has not been run for about five hours.  
2003 AVALON (OM41401U)  
281  
’03 AVALON U (L/O 0206)  
Checking and replacing tires  
If a tire frequently needs refilling, have it  
checked by your Toyota dealer.  
The following instructions for checking  
tire pressure should be observed:  
Tread wear indicator  
D The pressure should be checked only  
when the tires are cold. If your ve-  
hicle has been parked for at least 3  
hours and has not been driven for  
more than 1.5 km or 1 mile since, you  
will get an accurate cold tire pressure  
reading.  
CAUTION  
Keep your tire pressure properly.  
Otherwise, the following conditions  
may occur and cause an accident re-  
sulting in death or serious injuries.  
Low tire pressure (underinflation)—  
D Excessive wear  
D Always use  
a
tire pressure gauge.  
The appearance of a tire can be mis-  
leading. Besides, tire pressures that  
are even just a few pounds off can  
degrade ride and handling.  
D Uneven wear  
D Poor handling  
CHECKING YOUR TIRES  
D Possibility of blowouts from over-  
heated tire  
D Do not bleed or reduce tire pressure  
after driving. It is normal for the tire  
pressure to be higher after driving.  
Check the tire tread for the tread wear  
indicators. If the indicators show, re-  
place the tires.  
D Poor sealing of the tire bead  
D Never exceed the vehicle capacity  
weight. The passenger and luggage  
weight should be located so that the  
vehicle is balanced.  
D Wheel deformation and/or tire sepa-  
ration  
The tires on your Toyota have built−in  
tread wear indicators to help you know  
when the tires need replacement. When  
the tread depth wears to 1.6 mm (0.06  
in.) or less, the indicators will appear. If  
you can see the indicators in two or more  
adjacent grooves, the tire should be re-  
placed. The lower the tread, the higher  
the risk of skidding.  
High tire pressure (overinflation)—  
D Poor handling  
D Be sure to reinstall the tire inflation  
valve caps. Without the valve caps,  
dirt or moisture could get into the valve  
core and cause air leakage. If the caps  
have been lost, have new ones put on  
as soon as possible.  
D Excessive wear at the center of the  
tire tread  
D A greater possibility of tire damage  
from road hazards  
The effectiveness of snow tires is lost  
if the tread wears down below 4 mm  
(0.16 in.).  
2003 AVALON (OM41401U)  
282  
’03 AVALON U (L/O 0206)  
Check the tires regularly for damage  
such as cuts, splits and cracks. If any  
damage is found, consult with a techni-  
cian and have the tire repaired or re-  
placed.  
When replacing a tubeless tire, the air  
valve should also be replaced with a  
new one.  
CAUTION  
Observe the following instructions.  
Otherwise, an accident may occur re-  
sulting in death or serious injuries.  
Even if the damage does not appear seri-  
ous, a qualified technician should examine  
the damage. Objects which have pene-  
trated the tire may have caused internal  
damage.  
D Do not mix radial, bias belted, or  
bias−ply tires on your vehicle, as  
this may cause dangerous handling  
characteristics resulting in loss of  
control.  
Any tires which are over 6 years old  
must be checked by a qualified techni-  
cian even if damage is not obvious.  
D Do not use tires other than the  
manufacturer’s recommended size,  
as this may cause dangerous han-  
dling characteristics resulting in  
loss of control.  
Tires deteriorate with age even if they  
have never or seldom been used.  
This also applies to the spare tire and  
tires stored for future use.  
Toyota recommends all four tires, or at  
least both front or rear tires be re-  
placed as a set.  
REPLACING YOUR TIRES  
When replacing  
a
tire, use only the  
same size and construction as original-  
ly installed and with the same or great-  
er load capacity.  
See “If you have a flat tire” in Section 4  
for tire change procedure.  
When  
should always be balanced.  
a
tire is replaced, the wheel  
Using any other size or type of tire may  
seriously affect handling, ride, speedome-  
ter/odometer calibration, ground clearance,  
and clearance between the body and tires  
or snow chains.  
An unbalanced wheel may affect vehicle  
handling and tire life. Wheels can get out  
of balance with regular use and should  
therefore be balanced occasionally.  
2003 AVALON (OM41401U)  
283  
’03 AVALON U (L/O 0206)  
Installing snow tires and  
chains  
Rotating tires  
To equalize the wear and help extend  
tire life, Toyota recommends that you  
rotate your tires according to the main-  
tenance schedule. (For scheduled main-  
tenance information, please refer to the  
“Scheduled Maintenance Guide” or  
“Owner’s Manual Supplement”.) Howev-  
er, the most appropriate timing for tire  
rotation may vary according to your  
driving habits and road surface condi-  
tions.  
WHEN TO USE SNOW TIRES OR  
CHAINS  
Snow tires or chains are recommended  
when driving on snow or ice.  
On wet or dry roads, conventional tires  
provide better traction than snow tires.  
SNOW TIRE SELECTION  
If you need snow tires, select the same  
size, construction and load capacity as  
the original tires on your Toyota.  
See “If you have a flat tire” in Section 4  
for tire change procedure.  
Do not use tires other than those men-  
tioned above. Do not install studded tires  
without first checking local regulations for  
possible restrictions.  
With a spare tire of the same wheel type  
as the installed tires  
When rotating tires, check for uneven  
wear and damage. Abnormal wear is usu-  
ally caused by incorrect tire pressure, im-  
proper wheel alignment, out−of−balance  
wheels, or severe braking.  
CAUTION  
Do not use snow tires other than the  
manufacturer’s recommended size, as  
this may cause dangerous handling  
characteristics resulting in loss of  
control. Otherwise, an accident may  
occur resulting in death or serious  
injuries.  
With a spare tire of different wheel type  
from the installed tires  
2003 AVALON (OM41401U)  
284  
’03 AVALON U (L/O 0206)  
SNOW TIRE INSTALLATION  
TIRE CHAIN SELECTION  
When installing chains on your tires, care-  
fully follow the instructions of the chain  
manufacturer.  
Snow tires should be installed on all  
wheels.  
P205/65R15 92H tires—Use the tire  
chains of correct size and type.  
If wheel covers are used, they will be  
scratched by the chain band, so remove  
the covers before putting on the chains.  
Installing snow tires on the front wheels  
only can lead to an excessive difference  
in road grip capability between the front  
and rear tires which could cause loss of  
vehicle control.  
Use SAE Class “S” type radial tire chains  
except radial cable chains or V−bar type  
chains.  
P205/60R16 91H tires—Use tire chains  
of the correct size.  
CAUTION  
When storing removed tires, you should  
store them in a cool dry place.  
Use only genuine Toyota tire chains or equiv-  
alent for use on the AVALON.  
D Do not exceed 50 km/h (30 mph) or  
the chain manufacturer’s recom-  
mended speed limit, whichever is  
lower.  
Mark the direction of rotation and be sure  
to install them in the same direction when  
replacing.  
NOTICE  
D Drive carefully avoiding bumps,  
holes, and sharp turns, which may  
cause the vehicle to bounce.  
If the wrong combination of tire and  
chain is used, the chains could dam-  
age the vehicle body.  
CAUTION  
D Avoid sharp turns or locked−wheel  
braking, as use of chains may ad-  
versely affect vehicle handling.  
D Do not drive with the snow tires  
incorrectly inflated.  
D AVALON genuine tire chains  
(Part No. 08329−33801)  
D Never drive over 120 km/h (75 mph)  
with any type of snow tires.  
D When driving with chains installed,  
be sure to drive carefully. Slow  
down before entering the curves to  
avoid losing control of the vehicle.  
Otherwise an accident may occur.  
Laws about using tire chains vary ac-  
cording to locality and type of road, so  
always check your local laws before  
you install tire chains.  
CHAIN INSTALLATION  
Install the chains on the front tires as  
tightly as possible. Do not use tire  
chains on the rear tires. Retighten  
chains after  
(1/4—1/2 mile).  
driving  
0.5—1.0  
km  
2003 AVALON (OM41401U)  
285  
’03 AVALON U (L/O 0206)  
Replacing wheels  
Aluminum wheel precautions  
WHEN TO REPLACE YOUR WHEELS  
Replacement with used wheels is not rec-  
ommended as they may have been sub-  
jected to rough treatment or high mileage  
and could fail without warning. Also, bent  
wheels which have been straightened may  
have structural damage and therefore  
should not be used. Never use an inner  
tube in a leaking wheel which is designed  
for a tubeless tire.  
D When installing aluminum wheels,  
check that the wheel nuts are tight  
after driving your vehicle the first 1600  
km (1000 miles).  
If you have wheel damage such as  
bending, cracks or heavy corrosion, the  
wheel should be replaced.  
D If you have rotated, repaired, or  
changed your tires, check that the  
wheel nuts are still tight after driving  
1600 km (1000 miles).  
If you fail to replace damaged wheels, the  
tire may slip off the wheel or cause loss  
of handling control.  
WHEEL SELECTION  
D When using tire chains, be careful not  
to damage the aluminum wheels.  
When replacing wheels, care should be  
taken to ensure that the wheels are re-  
placed by ones with the same load ca-  
pacity, diameter, rim width, and offset.  
CAUTION  
D Use only the Toyota wheel nuts and  
wrench designed for your aluminum  
wheels.  
Do not use wheels other than the  
manufacturer’s recommended size, as  
this may cause dangerous handling  
characteristics resulting in loss of  
control. Otherwise, an accident may  
occur resulting in death or serious  
injuries.  
Correct replacement wheels are available  
at your Toyota dealer.  
D When balancing your wheels, use only  
Toyota balance weights or equivalent  
and a plastic or rubber hammer.  
A wheel of a different size or type may  
adversely affect handling, wheel and bear-  
ing life, brake cooling, speedometer/odom-  
eter calibration, stopping ability, headlight  
aim, bumper height, vehicle ground clear-  
ance, and tire or snow chain clearance to  
the body and chassis.  
D As with any wheel, periodically check  
your aluminum wheels for damage. If  
damaged, replace immediately.  
2003 AVALON (OM41401U)  
286