2003 TOYOTA CELICA engine overheat

’03MY CELICA U (L/O 0208)
156
2003 CELICA from Aug. ’02 Prod. (OM20809U)
Avoid jerky steering and sharp turns.
The trailer could hit your vehicle in a
tight turn. Slow down before making a
turn to avoid the necessity of sudden
braking.
Remember that when making a turn,
the trailer wheels will be closer than
the vehicle wheels to the inside of the
turn. Therefore, compensate for this by
making a larger than normal turning
radius with your vehicle.
Crosswinds and rough roads will ad-
versely affect handling of your vehicle
and trailer, causing sway. Pay attention
to the rear from time to time to pre-
pare yourself for being passed by large
trucks or buses, which may cause your
vehicle and trailer to sway. If swaying
happens, firmly grip the steering wheel
and reduce speed immediately but
gradually. Never increase speed. Steer
straight ahead. If you make no extreme
correction with the steering or brakes,
the vehicle and trailer will stabilize.
Be careful when passing other ve-
hicles. Passing requires considerable
distance. After passing a vehicle, do
not forget the length of your trailer and
be sure you have plenty of room be-
fore changing lanes.
In order to maintain engine braking effi-
ciency do not use fifth gear (5speed
manual transmission), sixth gear
(6speed manual transmission) or over-
drive (automatic transmission).
Because of the added load of the trail-
er, your vehicle’s engine may overheat
on hot days (at temperatures over
30C [85 F]) when going up a long or
steep grade with a trailer. If the engine
coolant temperature gauge indicates
overheating, immediately turn off the air
conditioning (if in use), pull off the road
and stop in a safe spot. Refer to “If
your vehicle overheats” in Section 4.
Always place wheel blocks under both
the vehicle and trailer wheels when
parking. Apply the parking brake firmly.
Put the transmission in “P” (automatic)
or in first or reverse (manual). Avoid
parking on a slope with a trailer, but
if it cannot be avoided, do so only
after performing the following:
1. Apply the brakes and hold.
2. Have someone place wheel blocks un- der both the vehicle and trailer wheels.
3. When the wheel blocks are in place, release your brakes slowly until the
blocks absorb the load. 4. Apply the parking brake firmly.
5. Shift into first or reverse (manual) or
“P” (automatic) and turn off the engine.
When restarting out after parking on a
slope: 1. With the transmission in “P” position (automatic) or the clutch pedal de-
pressed (manual), start the engine.
(With an automatic transmission, be
sure to keep the brake pedal de-
pressed.)
2. Shift into gear.
3. Release the parking brake (also foot brake on automatic transmission ve-
hicles) and slowly pull or back away
from the wheel blocks. Stop and apply
your brakes.
4. Have someone retrieve the blo cks.

’03MY CELICA U (L/O 0208)
157
2003 CELICA from Aug. ’02 Prod. (OM20809U)
CAUTION
Do not exceed 72 km/h (45 mph) or
the posted towing speed limit,
whichever is lower. Because insta-
bility (swaying) of a towing vehicle
trailer combination usually in-
creases as the speed increases, ex-
ceeding 72 km/h (45 mph) may
cause loss of control.
Slow down and downshift before
descending steep or long downhill
grades. Do not make sudden down-
shifts.
Avoid holding the brake pedal down
too long or too frequently. This
could cause the brakes to overheat
and result in reduced braking effi-
ciency.
Improving fuel economy is easy—just take
it easy. It will help make your vehicle last
longer, too. Here are some specific tips
on how to save money on both fuel and
repairs:
Keep your tires inflated at the cor-
rect pressure. Underinflation causes
tire wear and wastes fuel. See Section
72 for instructions.
Do not carry unneeded weight in
your vehicle. Excess weight puts a
heavier load on the engine, causing
greater fuel consumption.
Avoid lengthy warmup idling. Once
the engine is running smoothly, begin
driving—but gently. Remember, howev-
er, that on cold winter days this may
take a little longer.
Keep the automatic transmission
overdrive turned on when engine
braking is not required. Driving with
the overdrive off will reduce the fuel
economy. (For details, see “Automatic
transmission” in Section 16.)
Accelerate slowly and smoothly.
Avoid jackrabbit starts. Get into high
gear as quickly as possible.
Avoid long engine idling. If you have
a long wait and you are not in traffic,
it is better to turn off the engine and
start again later.
Avoid engine lugging or overrev-
ving. Use a gear position suitable for
the road on which you are travelling.
Avoid continuous speeding up and
slowing down. Stopandgo driving
wastes fuel.
Avoid unnecessary stopping and
braking. Maintain a steady pace. Try
to time the traffic signals so you only
need to stop as little as possible or
take advantage of through streets to
avoid traffic lights. Keep a proper dis-
tance from other vehicles to avoid sud-
den braking. This will also reduce wear
on your brakes.
Avoid heavy traffic or traffic jams
whenever possible.
Do not rest your foot on the clutch
or brake pedal. This causes premature
wear, overheating and poor fuel econo-
my.
Maintain a moderate speed on high-
ways. The faster you drive, the greater
the fuel consumption. By reducing your
speed, you will cut down on fuel con-
sumption.
How to save fuel and make
your vehicle last longer

’03MY CELICA U (L/O 0208)
159
2003 CELICA from Aug. ’02 Prod. (OM20809U)
IN CASE OF AN EMERGENCY
If your vehicle will not start160
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
If your engine stalls while driving 163
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
If you cannot increase the engine speed 163
. . . . . . . . . . . . . . . . . . . . . .
If your vehicle overheats 164
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
If you have a flat tire 165
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . . .
If your vehicle becomes stuck 175
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
If your vehicle needs to be towed 175
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
If you cannot shift automatic transmission selector lever 178
. . . . . . . .
If you lose your keys 179
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . \
. . . .
If you lose your wireless remote control transmitter 179
. . . . . . . . . . . . .
SECTION 4

’03MY CELICA U (L/O 0208)
160
2003 CELICA from Aug. ’02 Prod. (OM20809U)
Before making these checks, make sure
you have followed the correct starting pro-
cedure given in “How to start the engine”
in Section 3 and that you have sufficient
fuel.
If the engine is not turning over or is
turning over too slowly—1. Check that the battery terminals are tight and clean.
2. If the battery terminals are O.K., switch on the interior light.
3. If the light is out, dim or goes out when the starter is cranked, the battery
is discharged. You may try jump start-
ing. See “(c) Jump starting” for further
instructions.
If the light is O.K., but the engine still will
not start, it needs adjustment or repair.
Call a Toyota dealer or qualified repair
shop.
NOTICE
Do not pull or pushstart the vehicle.
It may damage the vehicle or cause a
collision when the engine starts. Also
the threeway catalytic converter may
overheat and become a fire hazard.
If the engine turns over at its normal
speed but will not start— 1. Turn the ignition key to “ACC” or “LOCK” and try starting the engine
again.
2. If the engine will not start, the engine may be flooded because of repeated
cranking. See “(b) Starting a flooded
engine” for further instructions.
3. If the engine still will not start, it needs adjustment or repair. Call a Toyota
dealer or qualified repair shop. If the engine will not start, your engine
may be flooded because of repeated
cranking.
If this happens, turn the key to “START”
with the accelerator pedal held down.
Keep the key and accelerator pedal so for
15 seconds and release them. Then try
starting the engine with your foot off the
accelerator pedal.
If the engine does not start after 15 se-
conds of cranking, release the key, wait
a few minutes and try again.
If the engine still will not start, it needs
adjustment or repair. Call a Toyota dealer
or qualified repair shop for assistance.
NOTICE
Do not crank for more than 30 seconds
at a time. This may overheat the starter
and wiring systems.
If your vehicle will not start—
(a) Simple checks
(b) Starting a flooded engine

’03MY CELICA U (L/O 0208)
164
2003 CELICA from Aug. ’02 Prod. (OM20809U)
If your engine coolant temperature
gauge indicates overheating, if you ex-
perience a loss of power, or if you hear
a loud knocking or pinging noise, the
engine has probably overheated. You
should follow this procedure...1. Pull safely off the road, stop the ve- hicle and turn on your emergency
flashers. Put the transmission in “P”
(automatic) or neutral (manual) and ap-
ply the parking brake. Turn off the air
conditioning if it is being used.
2. If coolant or steam is boiling out of the radiator or reservoir, stop the engine.
Wait until the steam subsides before
opening the hood. If there is no coolant
boiling over or steam, leave the engine
running and make sure the electric
cooling fan is operating. If it is not,
turn the ignition off.
CAUTION
To help avoid personal injury, keep
the hood closed until there is no
steam. Escaping steam or coolant is
a sign of very high pressure.
3. Look for obvious coolant leaks from theradiator, hoses, and under the vehicle.
However, note that water draining from
the air conditioning is normal if it has
been used.
CAUTION
When the engine is running, keep
hands and clothing away from the
moving fan and engine drive belts.
4. If the coolant is leaking, stop the en-gine immediately. Call a Toyota dealer
for assistance.
5. If there are no obvious leaks, check the coolant reservoir.
If it is dry, call a Toyota dealer for
assistance as soon as possible.
If there is enough coolant in the reser-
voir, again check the coolant level in
the reservoir after the engine coolant
temperature has cooled to normal. Seri-
ous coolant loss indicates a leak in the
system. You s hould have it checked as
soon as possible at you Toyota dealer.
CAUTION
Do not attempt to touch the coolant
reservoir tank when the engine and
radiator are hot. Serious injury could
result from scalding hot fluid and
steam blown out under pressure.
If your vehicle overheats

’03MY CELICA U (L/O 0208)
2003 CELICA from Aug. ’02 Prod. (OM20809U)
Publication No. OM20809U
Part No. 01999-20809
Printed in Japan 01020800
C
(U)
Quick index
If a service reminder indicator or warning buzzer comes on 83 . . . . . . . . .
 If your vehicle will not start 160 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. .
 If your engine stalls while driving 163 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 If your vehicle overheats 164 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . .
 If you have a flat tire 165 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . .
 If your vehicle needs to be towed 175 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 Tips for driving during breakin period 134 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
 How to start the engine 148 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . .
 General maintenance 191 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .\
. . . . . . . . .
 Complete index . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Gas station information
Fuel type:
1ZZFE engine: UNLEADED gasoline, Octane Rating 87
(Research Octane Number 91) or higher
2ZZGE engine: Premium UNLEADED gasoline, Octane Rating 91
(Research Octane Number 96) or higher
See page 134 for detailed information.
Fuel tank capacity:
55 L (14.5 gal., 12.1 lmp. gal.)
Engine oil:
API grade SL “EnergyConserving” or ILSAC multigrade engine oil is
recommended.
See page 205 for detailed information.
Tire information: See pages 209 through 215.
Tire pressure: See page 237.
U6