2004 Oldsmobile Silhouette radiator

How to Add Coolant to the Coolant
Recovery Tank
If you have not found a problem yet, but the coolant
level is not at or above the FULL COLD mark, add
a 50/50 mixture of
clean, drinkable waterand
DEX-COOLžengine coolant at the coolant recovery
tank. SeeEngine Coolant on page 5-22for more
information.
{CAUTION:
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 would not get the overheat warning.
Your engine could catch ®re and you or others
could be burned. Use a 50/50 mixture of clean,
drinkable water and DEX-COOL
žcoolant.
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.
{CAUTION:
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. Do not spill coolant on a hot engine.
5-30

When the coolant in the coolant recovery tank is at or
above the FULL COLD mark, start your vehicle.
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.
{CAUTION:
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 Ð even a little Ð 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.
How to Add Coolant to the Radiator
Notice:Your engine has a speci®c radiator ®ll
procedure. Failure to follow this procedure could
cause your engine to overheat and be severely
damaged.
5-31

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 ®rst stops. Do not 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.
{CAUTION:
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. Do not spill coolant on a hot engine.
5-32

3. After the engine cools, open the coolant air bleed
valves.
There are two bleed valves. One is located on the
thermostat housing. The other is located on the
thermostat bypass tube.4. Fill the radiator with the proper DEX-COOL
ž
coolant mixture, up to the base of the ®ller
neck. SeeEngine Coolant on page 5-22for 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 valves after the radiator is ®lled.
5. Rinse or wipe any spilled coolant from the engine
and the compartment. Housing
Bypass Tube
5-33

6. Start the engine and let it run until you can feel the
upper radiator hose getting hot. Watch out for the
engine cooling fans.
7. By this time, the coolant level inside the radiator
®ller neck may be lower. If the level is lower, add
more of the proper DEX-COOL
žcoolant mixture
through the ®ller neck until the level reaches
the base of the ®ller neck.
5-34

(c)Visually inspect hoses and have them replaced if they
are cracked, swollen or deteriorated. Inspect all pipes,
®ttings and clamps; replace with genuine GM parts as
needed. To help ensure proper operation, a pressure test
of the cooling system and pressure cap and cleaning the
outside of the radiator and air conditioning condenser is
recommended at least once a year.
(d)Visually inspect wiper blades for wear or cracking.
Replace blade inserts that appear worn or damaged
or that streak or miss areas of the windshield.
(e)Make sure the safety belt reminder light and all your
belts, buckles, latch plates, retractors and anchorages
are working properly. Look for any other loose or
damaged safety belt system parts. If you see anything
that might keep a safety belt system from doing its
job, have it repaired. Have any torn or frayed safety belts
replaced. Also look for any opened or broken air bag
coverings, and have them repaired or replaced. (The air
bag system does not need regular maintenance.)
(f)Lubricate all key lock cylinders, hood latch
assemblies, secondary latches, pivots, spring anchor
and release pawl, hood and door hinges, rear folding
seats, liftgate hinges, fuel door hinge, power sliding door
cable and sliding door track(s). More frequent lubrication
may be required when exposed to a corrosive
environment. Applying silicone grease on weatherstrips
with a clean cloth will make them last longer, seal
better and not stick or squeak.
(g)If you drive regularly under dusty conditions, the
®lter may require replacement more often.
(h)Change automatic transaxle ¯uid and ®lter if the
vehicle is mainly driven under one or more of these
conditions:
þIn heavy city traffic where the outside temperature
regularly reaches 90ÉF (32ÉC) or higher.
þIn hilly or mountainous terrain.
þWhen doing frequent trailer towing.
þUses such as found in taxi, police or delivery
service.
(i)Drain, ¯ush and re®ll cooling system. See Engine
Coolant on page 5-22for what to use. Inspect hoses.
Clean radiator, condenser, pressure cap and ®ller neck.
Pressure test the cooling system and pressure cap.
(j)
Check system for interference or binding and
for damaged or missing parts. Replace parts as needed.
Replace any components that have high effort or
excessive wear. Do not lubricate accelerator or cruise
control cables.
(k)A ¯uid loss in any vehicle system could indicate a
problem. Have the system inspected and repaired
and the ¯uid level checked. Add ¯uid if needed.
6-8

G
Gage
Engine Coolant Temperature.........................3-48
Fuel..........................................................3-52
Speedometer..............................................3-43
Garage Door Opener.......................................2-47
Gasoline
Octane........................................................ 5-4
Speci®cations............................................... 5-5
Gate Operator and Canadian Programming........2-50
Glove Box.....................................................2-51
GM Mobility Program for Persons with
Disabilities.................................................... 7-6
H
Hatch Ajar Warning Message............................3-58
Hazard Warning Flashers................................... 3-6
Head Restraints............................................... 1-7
Headlamp Wiring...........................................5-101
Headlamps....................................................5-50
Bulb Replacement.......................................5-50
Front Turn Signal, Sidemarker and
Parking Lamps.........................................5-52
Halogen Bulbs............................................5-50Headphones...................................................3-86
Heated Seats................................................... 1-5
Highway Hypnosis...........................................4-23
Hill and Mountain Roads..................................4-24
Hitches..........................................................4-42
HomeLink
žTransmitter....................................2-47
HomeLinkžTransmitter, Programming................2-48
Hood
Checking Things Under................................5-10
Release.....................................................5-10
Horn............................................................... 3-7
How the System Works...................................3-25
How to Add Coolant to the Coolant
Recovery Tank............................................5-30
How to Add Coolant to the Radiator..................5-31
How to Add Fluid Automatic
Transaxle Fluid...........................................5-22
How to Check................................................5-68
How to Check Automatic
Transaxle Fluid...........................................5-20
How to Check Power Steering Fluid..................5-36
How to Inspect the Engine Air
Cleaner/Filter..............................................5-18
How to Use This Manual...................................... ii
How to Wear Safety Belts Properly...................1-27
Hydroplaning..................................................4-18
7

PASS-KeyžIII Security Message.......................3-58
Plan Ahead When Possible................................ 7-8
Playing a Cassette Tape..................................3-69
Playing a CD.........................................3-71, 3-80
Playing a Speci®c Loaded CD..........................3-81
Playing the Radio...................................3-64, 3-74
Power
Accessory Outlets........................................3-27
Door Locks.................................................2-11
Eight-Way Seats........................................... 1-4
Electrical System.......................................5-101
Rear Quarter Windows.................................2-25
Six-Way Seats.............................................. 1-4
Sliding Door................................................2-17
Sliding Door Warning Message......................3-57
Steering Fluid.............................................5-36
Windows....................................................2-24
Power Steering...............................................4-10
Pretensioners, Safety Belt................................1-45
Primary Radio Controls....................................3-92
Programmable Automatic
Door Locks.................................................2-12
Programmable Modes.............2-61, 2-62, 2-63, 2-64,
2-65, 2-66, 2-67
Programming Mode
Entering.....................................................2-61
Exiting.......................................................2-69
Programming the HomeLink
žTransmitter...........2-48
Q
Questions and Answers About Safety Belts.........1-27
R
Radiator Pressure Cap....................................5-25
Radio Data System (RDS).......................3-67, 3-77
Radio Messages.....................................3-69, 3-80
Radios..........................................................3-63
Care of Your Cassette Tape Player................3-98
Care of Your CD and DVD Player................3-100
Care of Your CDs and DVDs........................3-99
Radio with Cassette and CD.........................3-64
Radio with Six-Disc CD................................3-74
Rear Seat Audio..................................3-92, 3-94
Setting the Time..........................................3-63
Theft-Deterrent............................................3-96
Understanding Reception..............................3-98
RDS Messages......................................3-68, 3-79
Rear Climate Control System...................3-34, 3-36
Rear Hatch Ajar Warning Message....................3-58
Rear Reading Lamps......................................3-22
Rear Safety Belt Comfort Guides......................1-42
Rear Seat Audio (RSA)...........................3-92, 3-94
Rear Seat Operation......................................... 1-8
Rear Seat Outside Passenger Positions.............1-39
11