cooling Oldsmobile Alero 2003 Owner's Manuals

Lockout Protection
Lockout protection is intended to provide enhanced
security and convenience. This feature prevents a driver
who has left the keys in the ignition from locking the
doors, using the power door locks while any door
is open.
To override this feature, when the key is in the ignition
and any door is open, press and hold down the
power door lock switch for three seconds.
This feature cannot guarantee that you will never be
locked out of your vehicle.
If you don’t leave the keys in
the ignition, or
if you use the manual door lock or the
remote keyless entry transmitter, you could still lock your
keys inside your vehicle. Always remember to take
your keys with you.
Leaving Your Vehicle
If you are leaving your vehicle, open your door and
set the locks from the inside, then get out and close
the door.
Trunk
When closing the trunk, close from the center to ensure
’+ ‘ully latches.
It can be d,,,gerous L drive wit.. Ihe trL ... c lid
open because carbon monoxide (CO) gas can
come into your vehicle. You can’t see or smell
CO.
It can cause unconsciousness and even
death. If you must drive with the trunk
lid open
or if electrical wiring or other cable
connections must pass through the seal
between the body and the trunk
lid:
Make sure all other windows are shut.
0 Turn the fan on your heating or cooling
system to
its highest speed and select the
control setting that will force outside air into your vehicle. See “Climate Controls”
in the Index.
instrument panel, open them all the way.
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See “Engine Exhaust” in the Index.
To unlock the trunk from the outside, insert the key and
turn the trunk lock cylinder or use the remote keyless
entry transmitter,
if your vehicle has this feature.
2-1 1

Climate Controls
Climate Control System
With this system you can control the heating, cooling
and ventilation for your vehicle.
Operation
Io change the current mode, select one of the following:
2 (Vent): This mode directs air to the instrument
panel outlets.
+2 (Bi-Level): This mode directs half of the air to the
instrument panel outlets, and then directs most of
the remaining air to the floor outlets. Some air may be
directed toward the side windows.
(Floor): This mode directs most of the air to the
floor outlets with some air directed to the side windows.
The right knob can also be used to select defog or
defrost modes. Information on defogging and defrosting
can be found later in this section.
@? (Fan): Turn the left knob clockwise or
counterclockwise to increase or decrease the fan speed.
a (Outside Air): Press this button to turn the
outside air mode on or
off. When this mode is on,
outside air will circulate throughout your vehicle. The
outside air mode can be used with all modes, but
it cannot be used with the recirculation mode.
(Recirculation): This mode keeps outside air from
coming in the vehicle. It can be used
to prevent outside
cool the air inside your vehicle more quickly. Press this
button to turn the recirculation mode on or
off. The
air-conditioning compressor will come on. The
recirculation mode cannot be used with the outside air
mode. Recirculation is not available when
in the defog or
defrost modes or when the fan
is off.
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3-1 9

If you drive regularly in steep country, or if you’re
planning to visit there, here are some tips that can make
your trips safer and more enjoyable.
Keep your vehicle in good shape. Check all fluid
levels and also the brakes, tires, cooling system
and transaxle. These parts can work hard on
mountain roads.
Know how to go down hills. The most important
thing to know is this: let your engine do some of
the slowing down. Shift to a lower gear when you go
down a steep or long hill.
I ou don’l down, 1 ir brakes cou.-. get
so hot that they wouldn’t work well. You would
then have poor braking or even none going down a
hill. You could crash. Shift down to let
your engine assist your brakes on a steep downhill slope. Coasting downhill in
NEUTRAL
(N) or with the
ignition
off is dangerous. Your brakes will have
to do all the work
of slowing down. They could
get
so hot that they wouldn’t work well. You
would then have poor braking or even none
going down a
hill. You could crash. Always
have your engine running and your vehicle in
gear when you go downhill.
e
e
e
e
Know how to go uphill. Drive in the highest gear
possible.
Stay in your own lane when driving on two-lane
roads in hills or mountains. Don’t swing wide or
cut across the center of the road. Drive at speeds
that let you stay in your own lane.
As you go over the top of a hill, be alert. There
could be something in your lane, like
a stalled car or
an accident.
You may see highway signs on mountains that
warn of special problems. Examples are long
grades, passing or no-passing zones, a falling rocks
area or winding roads. Be alert to these and take
appropriate action.
4-24

When You Are Ready to Leave After
Parking on a Hill
1. Apply your regular brakes and hold the pedal down
while you:
start your engine,
shift into a gear, and
release the parking brake.
2. Let up on the brake pedal.
3. Drive slowly until the trailer is clear of the chocks.
4. Stop and have someone pick up and store the
chocks.
Maintenance When Trailer Towing
Your vehicle will need service more often when you’re
pulling a trailer. See the Maintenance Schedule for more
on this. Things that are especially important in trailer
operation are automatic transaxle fluid (don’t overfill),
engine oil, drive belt, cooling system and brake system.
Each of these is covered in this manual, and the
Index will help you find them quickly. If you’re trailering,
it’s a good idea to review this information before you
start your trip.
Check periodically to see that all hitch nuts and bolts
are tight.
Engine Cooling When Trailer Towing
Your cooling system may temporarily overheat during
severe operating conditions. See
Engine Overheating on
page
5-26.
4-42

Section 5 Service and Appearance Care
Service ........................................................... -5-3
Doing Your Own Service Work ......................... 5.4
Adding Equipment to the Outside
of Your
Vehicle
..................................................... -5-4
Fuel
............................................................... -5-5
Gasoline Octane ........................................... -5-5
Gasoline Specifications .................................... 5.5
California Fuel .............................................. -5-6
Additives
...................................................... -5-6
Fuels in Foreign Countries
.............................. -5-6
Filling Your Tank
..................................... 5-7
Fillins a Portable Fuel Container .. ...... 5.8
the Hood
...................................................... 5-9
Hood Release .............................................. 5-10
Engine Compartment Overview ....................... 5-12
Engine Oil
.................................................. -5-1 5
Au'romaiic Transaxie Fiuia A-LL
Manual Transaxle Fluid .................................. 5-22
Checking
Things Under
Engine Air CleanedFilter
................................ 5-21 - ^^ .............................
Hydraulic Clutch ........................................... 5-22
Engine Overheating
....................................... 5-26
Cooling System
............................................ 5-28
Power Steering Fluid
..................................... 5-35
Windshield Washer Fluid
............ ............ -5-36
Brakes
...................................................... -5-38
Battery
........................................................ 5-41
Jump Starting
.............................................. 5-42
Engine Coolant
............................................. 5-23
Headlamp Aiming
........................................... 5-47
Bulb Replacement .......................................... 5-49
Haloger;
!3L;lbs .............................................. 5-49
Headlamps .................. .... ......... 5-49
Front Turn Signal and
Parking Lamps
.......... ......... 5-50
Center High-Mounted Stoplamp (CHMSL)
.................................... 5-50
Taillamps, Turn Signal, and Stoplamps ............ 5-50 n-.-~ n ..II-- nepmwzIIIe111 DUIU~ J-J 1 rc4 .......................................
5- 1

When to Check and What to Use
Schedule to determine
how often you should
check the fluid level in your
master cylinder reservoir
and for the proper
fluid. See
Part B: Owner
Checks and Services
on page 6-9 and Part D:
Recommended Fluids
and Lubricants
on
page 6- 15.
How to Check and Add Fluid
You do not need to check the fluid level unless you
suspect a clutch problem. To check the fluid level, take
the cap
off. If the fluid level reaches the top of the
reservoir, the fluid level is correct. It isn’t a good idea to
top
off your clutch fluid. Adding fluid won’t correct a
leak. A fluid loss in this system could indicate a problem
Have the system inspected and repaired.
Engine Coolant
The cooling system in your vehicle is filled with
DEX-COOL@ engine coolant. This coolant is designed
to remain in your vehicle for 5 years or 150,000 miles
(240 000 km), whichever occurs first, if you add
only DEX-COOL@ extended life coolant.
The following explains your cooling system and how to
add coolant when
it is low. If you have a problem
with engine overheating, see
Engine Overheating on
page 5-26.
A 50/50 mixture of clean, drinkable water and
DEX-COOL@ coolant will:
Give freezing protection down to -34°F (-37°C).
Give boiling protection up to 265°F (1 29°C).
@ Protect against rust and corrosion.
@ Help keep the proper engine temperature.
Let the warning lights and gages work as they
should.
5-23

Notice: When adding coolant, it is important that
you use only
DEX-COOL@ (silicate-free) coolant.
If coolant other than DEX-COOL is added to
the system, premature engine, heater core or
radiator corrosion may result. In addition, the engine
coolant will require change sooner
-- at 30,000 miles
(50,000 km) or 24 months, whichever occurs first.
Damage caused by the use of coolant other
than DEX-COOL@
is not covered by your new vehicle
warranty.
What to Use
Use a mixture of one-half clean, drinkable wafer and
one-half
DEX-COOL@ coolant which won’t damage
aluminum parts.
If you use this coolant mixture,
you don’t need to add anything else. Adding only plain water to your cooling
system can be dangerous. Plain
water, or
some other liquid such as alcohol, can boil
before the proper coolant mixture will. Your
vehicle’s coolant warning system is set for the proper coolant mixture.
With plain water or the
wrong mixture, your engine could get too hot
but you wouldn’t get
the overheat warning.
Your engine could catch fire and you or others
could be burned. Use a
50/50 mixture of clean,
drinkable water and DEX-COOL@ coolant.
Notice: If you use an improper coolant mixture,
your engine could overheat and be badly damaged.
The repair cost wouldn’t be covered by your
warranty.
Too much water in the mixture can freeze
and crack the engine, radiator, heater core and
other parts.
If you have to add coolant more than four times a year,
have your dealer check your cooling system.
Notice: If you use the proper coolant, you don’t
have to add extra inhibitors or additives which claim
to improve the system. These can be harmful.
5-24

Adding Coolant
If you need more coolant, add the proper DEX-COOL@
coolant mixture
at the surge tank, but only when the
engine is cool.
If the surge tank is empty, a special fill
procedure is necessary. See
Engine Overheating
on page
5-26 and “How to Add Coolant to the Coolant
Surge Tank under
Cooling System on page 5-28
for instructions.
Engine Overheating
You will find a coolant temperature gage and a low
coolant warning light on your vehicle’s instrument panel.
See
Engine Coolant Temperature Gage on page 3-31
and Low Coolant Warning Light on page 3-31.
If Steam Is Coming From Your Engine
1 --I can be -Jrned you s I coolant on hot
engine parts. Coolant contains ethylene glycol,
and it will burn if the engine parts are hot
enough. Don’t spill coolant on a hot engine.
I I
When replacing the pressure cap, make sure it is
hand-tight.
5-26

If you no longer have the overheat warning, you can
drive.
Just to be safe, drive slower for about 10 minutes.
If the warning doesn’t come back on, you can drive
normally.
If the warning continues, pull over, stop, and park your
vehicle right away.
If there’s still
no sign of steam, you can idle the engine
for three minutes while you’re parked. If you still
have the warning,
turn off the engine and get everyone
out
of the vehicle until it cools down.
You may decide not to lift the hood but
to get service
help right away.
Cooling System
When you decide it’s safe to lift the hood, here’s what
you’ll see:
2.2L L4 Engine shown, 3400 V6 Engine similar
A. Coolant Surge Tank with Pressure Cap
B. Electric Engine Cooling Fans
5-28

An electric engine cooling fan under the hood
can start up even when the engine is not
running and can injure you. Keep hands,
clothing and tools away from any underhood
electric fan.
If the coolant inside the coolant surge tank is boiling,
don’t do anything else until it cools down. The vehicle
should be parked on a level surface.
The coolant level should be at or above the
FULL
COLD mark. If it isn’t, you may have a leak at the
pressure cap or in the radiator hoses, heater hoses,
radiator, water pump or somewhere else in the cooling
system.
5-29