2003 PONTIAC BONNEVILLE radiator cap

Section 5 Service and Appearance Care
Service ........................................................ 5.3
Doing Your Own Service Work
......................... 5.3
Adding Equipment to the Outside
of Your
Vehicle
...................................................... 5.4
Fuel ................................................................ 5.5
Gasoline Octane
............................................ 5.5
Gasoline Specifications
.................................... 5.6
California Fuel
............................................... 5.6
Additives
....................................................... 5.6
Fuels in Foreign Countries
............................ 5.7
Filling Your Tank
........................... .......... 5.8
Filling
a Portable Fuel Container ..... .... 5.11
the Hood ............................. .... 5.12
Hood Release
.............................. ........ 5.13
Engine Compartment Overview ...................... -5-1 4
Checking Things Under
Engine Oil ................................................... 5.15
Supercharger Oil .......................................... 5.21
Engine Air Cleaner/t-llter
................................ 5-22
Automatic Transaxle Fluid .............................. 5.23
Engine Coolant
............................................. 5.26
Radiator Pressure Cap
.................................. 5.29
Engine Overheating
....................................... 5.29
Cooling System
............................................ 5.32
Power Steering Fluid
..................................... 5.40
Windshield Washer Fluid
................................ 5.40
Brakes
........................................................ 5.42
Battery
........................................................ 5-44
Jump Starting
............................................... 5-46
Headlamp Aiming .......................... ...... 5.52
Bulb Replacement .................................. -5-56
Halogen Bulbs
.............................................. 5.56
Headlamps
.................................................. 5.56
Front Turn Signal and Parking Lamps
.............. 5-57
Taillamps, Turn Signal, Stoplamps and
Back-up Lamps
......................................... 5-59
fiepiacement
Euibs 3.w - ^^ .......................................
5- I

A. Engine Compartment Fuse Block
B. Windshield Washer Fluid Reservoir
C. Engine Coolant Recovery Tank
D. Radiator Pressure Cap
E. Power Steering Fluid Reservoir
F. Engine Oil Dipstick
G. Engine Oil Fill Cap
H. Automatic Transaxle Fluid Dipstick
I. Brake Master Cylinder
J. Engine Air Cleaner/Filter
Engine Oil
WCHECK
OIL LEVEL
If the OIL LEVEL LOW
message appears
on the
DIC, or the CHECK
OIL LEVEL light appears
on the instrument cluster, it
means
YOU need to
check your engine oil level
right away.
For more information, see
Check Oil Level Light on
page
3-50 or DIG Warnings and Messages on
page 3-60.
You should check your engine oil level regularly; this is
an added reminder.
5-1 5

Checking Coolant
The engine coolant
recovery tank is located in
the engine compartment
on the passenger’s side of
the vehicle, near the windshield. See
Engine
Compartment Overview on
page
5-74 for more
information on location.
Adding Coolant
The vehicle must be on a level surface. When your
engine
is cold, the coolant level should be at the
FULL COLD mark or a little higher. When your engine is
warm, the level should be up to the FULL HOT mark
or a little higher.
If you need more coolant, add the proper DEX-COOL@
coolant mixture
at the coolant recovery tank, but be
careful not to spill it.
Turnin- :he rai tor pressure
~-2 w..,n the
engine and radiator are hot can allow steam
and scalding liquids to blow out and burn you
badly. With the coolant recovery tank, you will
almost never have to add coolant at the
radiator. Never turn the radiator pressure
cap
-- even a little -- when the engine and
radiator are hot.
5-28

1 -J can __ burned if you spill coolant -.I 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.
~~ ~ ~~
Occasionally check the coolant level in the radiator.
For information on how to add coolant to the radiator,
see
Cooling System on page 5-32.
Radiator Pressure Cap
Notice: Your radiator cap is a pressure-type cap
and must be tightly installed to prevent coolant
loss
and possible engine damage from overheating.
Be sure the arrows on the cap line up with the
overflow tube on the radiator filler
neck.
See Engine Compartment Overview on page 5-14 for
more information on location.
Engine Overheating
You will find a coolant temperature gage or a DIC
warning message about a hot engine on your vehicle’s
instrument panel. See
Engine Coolant Temperature
Gage on page 3-45
and DIC Warnings and Messages
on page
3-60.
5-29

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

The coolant level should be at or above the FULL COLD
mark when the engine is cold. The coolant level
should be at the FULL HOT mark under normal
operating conditions.
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
syster
If there seems to be no leak, with the engine on, check
to see
if the electric engine cooling fans are running.
If the engine is overheating, both fans should be
running.
If they aren’t, your vehicle needs service.
Notice: Engine damage from running your engine
without coolant
isn’t covered by your warranty.
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
1
Heater and radiator hoses, and other engine radiator corrosion may result.
-In addition, the engine
parts, can be very hot. Don’t touch them. If you coolant will require change sooner - at 30,000 miles
(50 000 km) or 24 months, whichever occurs first.
do, you can be burned.
Damage caused by the use of coolant other
Don’t run the engine if there
is a leak. If you than DEX-COOL@ is not covered by your new vehicie
run the engine,
it could lose all coolant. That warranty.
could cause an engine fire, and you could be
burned. Get any leak fixed before you drive the
vehicle.
5-33

If the overheat warning continues, there’s one more
thing you can
try. You can add the proper coolant
mixture directly to the radiator, but be sure the cooling
system
is cool before you do it.
Steam and scalding liquids from a hot cooling
system can blow out and burn you badly. They
are under pressure, and if you
turn the radiator
pressure cap
-- even a little -- they can come
out at high speed. Never turn the cap when the
cooling system, including the radiator pressure
cap,
is hot. Wait for the cooling system and
radiator pressure cap to cool if you ever have
to turn the pressure cap.
5-35

How to Add Coolant to the Radiator
1. You can remove the radiator pressure cap when
the cooling system, including the radiator pressure
cap and upper radiator hose, is no longer hot.
Turn the pressure cap slowly counterclockwise until
it first stops. (Don’t press down while turning the
pressure cap.)
If you hear a hiss, wait for that to stop. A hiss
means there is still some pressure left.
2. Then keep turning the pressure cap, but now push
down as you turn it. Remove the pressure cap.
5-36