2003 PONTIAC BONNEVILLE oil

3. Pull out the filter. Check or replace the engine air
4. To reinstall the housing cover, make sure the filter
cover tabs position through the slots in the housing.
A notch on the sides of the filter cover will indicate
the correct engagement.
cleaner/filter.
5. Fasten the
two clips on the top of the housing when
you are finished.
Refer to the Maintenance Schedule to determine when
to replace the air filter.
See
Part A: Scheduled Maintenance Services on
page
6-4.
Operating : el ne with ? ai :leane r
off can cause you or others to be burned. The
air cleaner not only cleans the air, it stops
flame if the engine backfires. If
it isn’t there
and the engine backfires, you could be burned.
Don’t drive with
it off, and be careful working
on the engine with the air cleaner/filter
off.
I
Notice: If the air cleanedfilter is off, a backfire can
cause a damaging engine fire.
And, dirt can
easily get into your engine, which will damage
it.
Always have the air cleaner/filter in place when
you’re driving.
When to Check and Change
A good time to check your automatic transaxle fluid
level is when the engine oil is changed.
Change both the fluid and filter every
50,000 miles
(83 000 km) if the vehicle is mainly driven under one or
more of
these conditions:
In heavy city traffic where the outside temperature
regularly reaches 90°F (32°C) or higher.
9 In hilly or mountainous terrain.
0 When doing frequent trailer towing.
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service.
If you do not use your vehicle under any of these
conditions, change the fluid and filter at
100,000 miles
(166 000 km).
See
Part A: Scheduled Maintenance Services on
page
6-4.
5-23

How to Add Fluid
Refer to the Maintenance Schedule to determine what
kind of transaxle fluid
to use. See Part D:
Recommended Fluids and Lubricants on page 6-24.
If the fluid level is low, add only enough of the proper
fluid
to bring the level into the cross-hatched area on the
dipstick.
1. Pull out the dipstick.
2. Using a long-neck funnel, add enough fluid at the
dipstick hole
to bring it to the proper level.
It doesn’t take much fluid, generally less than one
pint
(0.5 L). Don’t overfill.
Notice: We recommend you use only fluid labeled
DEXRON@-Ill, because fluid with that label is
made especially for your automatic transaxle.
Damage caused by fluid other than DEXRON@-Ill
is
not covered by your new vehicle warranty.
3. After adding fluid, recheck the fluid level as
described under “How to Check,” earlier in this
section.
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 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
5-29.
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 (129°C)
Protect against rust and corrosion.
Help keep the proper engine temperature.
Let the warning lights and gages work as
they should.
4. When the correct fluid level is obtained, push the
dipstick back
in all the way.
5-26

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 water 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-@SOL@ esslani.
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, neater core ana
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.
5-27

Cooling System
When you decide it’s safe to lift the hood, here’s what
you’ll see:
A. Coolant Recovery Tank
B. Radiator Pressure Cap
C. Electric Engine Cooling Fans
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 recovery tank is boiling,
don’t
do anything else until it cools down. The vehicle
should be parked on a level surface.
See
Engine Compartment
Overview on page
5- 14 for
more information on
location.
5-32

How to Add Coolant to the Coolant
Recovery Tank
If you haven’t found a problem yet, but the coolant level
isn’t at the FULL COLD mark, add a
50/50 mixture of
clean, drinkable water and DEX-COOL@ engine coolant
at the coolant recovery tank. See
Engine Coolant on
page
5-26 for more information.
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: In cold weather, water can freeze and crack
the engine, radiator, heater core and other parts. Use the recommended coolant and the proper
coolant mixture. You
can be burned if you spill 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.
When the coolant in the coolant recovery tank is at the
FULL
COLD mark, start your vehicle.
5-34

3. Remove the 3800 Series II V6 engine cover shield
to access the bleed valve.
3.1. Clean the area around the engine oil fill tube
and cap before removing. Twist the oil
fill
tube, with cap attached, counterclockwise
and remnvc! it^
3.2. If you have the supercharged engine,
remove the nut in the center of the cover
shield.
3.3. Lift the engine cover shield at the front, slide
the catch tab out
of the engine bracket and
remove the cover shield.
3.4. Put the oil
fill tube, with cap attached, in the
valve cover oil
fill hole until you’re ready to
replace the cover shield.
4. After the engine cools,
open the coolant air
bleed valve. There
is one bleed valve. It is
located on the
thermostat housing.
5-37

5. Fill the radiator with the proper DEX-COOL@
coolant mixture, up to the base of the filler
neck. See
Engine Coolant on page 5-26 for more
information about the proper coolant mixture.
If you see a stream of coolant coming from an air
bleed valve, close the valve. Otherwise, close
the valve after the radiator is filled.
6. Rinse or wipe any spilled coolant from the engine
and the compartment.
5-38
7. Replace the 3800 Series II V6 engine cover shield.
7.1. Remove the oil fill tube, with cap attached,
i.2. Insert the catch tab on the cover shield
under the bracket on the engine.
from the
valve cover.
7.3. Place the hole in the cover shield over the
hole in the valve cover. Install oil
fill tube and
cap by twisting clockwise.
7.4. If you have the supercharged engine, install
the nut in the center of the cover shield.
8. Then fill the coolant recovery tank to the
FULL
COLD mark.

What to Add
When you do need brake fluid, use only DOT-3 brake
fluid. Refer to
Part D: Recommended Fluids and
Lubricants on page
6-24. Use new brake fluid from a
sealed container only.
Always clean the brake fluid reservoir cap and the area
around the cap before removing it. This will help
ke-- dirt from entering the reservoir.
I
With the wrong kind of fluid in your brake
system, your brakes may not work well, or
they may not even work at all. This could
cause a crash. Always use the proper
brake fluid.
* If you spill brake fluid on your vehicle’s painted
surfaces, the paint finish can be damaged. Be
careful not to spill brake fluid on your vehicle.
If you do, wash
it off immediately. See
“Appearance Care” in the Index.
Brake wear
Your vehicle has four-wheel disc brakes.
Disc brake pads have built-in wear indicators that make
a high-pitched warning sound when the brake pads
are worn and new pads are needed. The sound
may come and go or be heard all the time your vehicle
is moving (except when you are pushing on the
brake pedal firmly).
Notice:
Using the wrong fluid can badly damage brake
system parts. For example, just a few drops of mineral-based oil, such as engine oil,
in your
brake system can damage brake system
parts
so badly that they’ll have to be replaced.
Don’t let someone put in the wrong kind of fluid. The brake
wear warning sound --jeans that
soon your brakes won’t work well. That could
lead
KO an accident. wnen you near ine brake
wear warning sound, have your vehicle
serviced.
5-43