1997 BUICK CENTURY engine coolant

How to Add Coolant to the Radiator
NOTICE:
Your engine has a specific radiator fill procedure.
Failure to
follow this procedure could cause your
engine
to overheat and be severely damaged.
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.
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2. Then keep turning
the pressure cap, but
now push down as
you
turn it. Remove the
pressure cap.
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.
3. After the engine cools, open the coolant air bleed
valve or valves.
3100 V6 (VIN Code M): There are two bleed valves.
One
is located on the thermostat housing. The other
is located on the thermostat bypass tube.
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4. Fill the radiator with the
proper
DEX-COOL@
coolant mixture, up
to
the base of the
filler neck.
If you see a stream of coolant coming from an air
bleed valve, close
the valve. Otherwise, close the
valves after the radiator is filled.
5. Rinse or wipe any spilled coolant from the engine
and the compartment.
6. Then fill the coolant recovery tank to the COLD
mark on the overflow hose in the coolant bottle.
7. Put the cap back on the coolant recovery tank, but
leave the radiator pressure cap
off.
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8. Start the engine and let it run until you can feel the
upper radiator hose getting hot. Watch out for the
engine fans.
9. By this time, the coolant level inside the radiator
filler neck may be lower.
If the level is lower, add
more
of the proper DEX-COOL@ coolant mixture
through the filler neck
until the level reaches the
base of the filler neck.
10. Then replace the pressure cap. At any time during
this procedure
if coolant begins to flow out of the
filler neck, reinstall
the pressure cap. Be sure the
arrows
on the pressure cap line up like this.
11. Check the coolant in the recovery tank. The level in
the coolant recovery tank should be at the HOT
mark when the engine is hot or at the COLD mark
when the engine
is cold.
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Section 6 Service and Appearance Care
Here you will find information about the care of your Buick. This section begins with service and fuel information,
and then
it shows how to check important fluid and lubricant levels. There is also technical information about your
vehicle, and a part devoted
to its appearance care.
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6-3
6-5
6-
5
6-7
6- 10
6-15
6-17
6-20
6-24
6-25
6-26
6-29
6-30
6-37 6-45
6-45
6-48
6-49 Service
Fuel
Fuels in Foreign Countries
Filling Your Tank
Checking Things Under the Hood
Engine Oil
Air Cleaner
Automatic Transaxle Fluid
Engine Coolant
Power Steering Fluid
Windshield Washer Fluid
Brakes
Battery
Bulb Replacement
Tires
Appearance Care
Cleaning the Inside of Your Buick
Cleaning the Built-in Child Restraint
Care
of Safety Belts and Built-in Child
Restraint Harness 6-49
6-49
6-50
6-50
6-5 1
6-52
6-52 6-52
6-5
3
6-53
6-54
6-55
6-55
6-56 6-62
6-62
6-63
6-63
6-63 Cleaning
Glass Surfaces
Cleaning the Outside
of the Windshield and
Wiper Blades
Weatherstrips
Cleaning the Outside of Your Buick
Cleaning Aluminum Wheels
Cleaning Tires
Sheet Metal Damage
Finish Damage
Underbody Maintenance
Chemical Paint Spotting
Appearance Care Materials Chart
Vehicle Identification Number
(VIN)
Service Parts Identification Label
Electrical System Replacement Bulbs
Capacities and Specifications
Vehicle Dimensions
Normal Maintenance Replacement Parts
Air Conditioning Refrigerants
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When you put the cap back on, turn it to the right
(clockwise) until you hear a clicking sound. Make sure
you fully install the cap. The diagnostic system can
determine
if the fuel cap has been left off or improperly
installed.
This would allow fuel to evaporate into the
atmosphere. See “Malfunction Indicator Lamp”
in the Index.
Checking Things Under the Hood
An electric fan under the hood can start up and
injure you even when the engine is not running.
Keep hands, clothing and tools away from any
underhood electric fan.
NOTICE:
I I 1
If you need a new cap, be sure to get the right
type. Your dealer can get one for you.
If you get
the wrong type, it may not fit properly. This may
cause your malfunction indicator lamp to light
and your fuel tank and emissions system may be
damaged. See “Malfunction Indicator Lamp” in
the Index.
1
I
Things that burn can get on hot engine parts and
start a fire. These include liquids like gasoline,
oil, coolant, brake fluid, windshield washer and
other fluids, and plastic or rubber. You or others
could be burned. Be careful not to drop or spill
things that will burn onto a hot engine.
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When you open the hood on the 3 100 (Code M) Engine, you’ll see:
A. Windshield Washer Fluid
B. Radiator
Fill Cap
C. Remote Positive Battery Terminal
Reservoir
D. Power
Steering Fluid Reservoir
E. Engine Oil Fill Cap
F. Engine Oil Dipstick
G. Automatic Transaxle
Fluid Dipstick
H. Brake Fluid Reservoir
I. Engine Coolant Recovery Tank
J. Air Cleaner
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Engine Coolant
The cooling s stem 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.
J
The following explains your cooling system and how to
add coolant when it is low.
If you have a problem with
engine overheating or if you need to add coolant to your
radiator, see “Engine Overheating”
in the Index.
A 50/50 mixture of water and DEX-COOL@
coolant will:
0 Give freezing protection down to -34°F (-37°C).
0 Give boiling protection up to 265 OF ( 129 O C).
0 Protect against rust and corrosion.
Help keep the proper engine temperature.
0 Let the warning lights and gages work as
they should.
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.
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