1997 BUICK REGAL engine coolant

Air Conditioning
On very hot days, open the windows long enough to let
hot, inside air escape. This reduces the time for the
vehicle to cool down.
For a quick cool-down on very hot days, use MAX with
the temperature knobs all the way
in the blue area. If
this setting is used for long periods of time, the air in
your vehicle may become too dry.
For normal cooling on hot days, use
NORM with the
temperature knobs in the blue area. The system will
bring
in outside air and cool it.
On cool, but sunny days, the
sun may warm your upper
body,
but your lower body may not be warm enough.
You can use BI-LEV and set the temperature knob to a
comfortable setting. The system will bring in outside air
and direct it to your upper body, while sending slightly
warmed air to your lower body. You may notice this
temperature difference more at some times than others.
Heating
On cold days, use HTR with the temperature knobs all
the way in the red area. The system will bring
in outside
air, heat it and send it to
the floor ducts.
If your vehicle has an engine coolant heater, you can use
it to help your system provide warm air faster when it’s
cold outside
(0°F (-18°C) or lower). An engine coolant
heater warms the coolant your engine and heating
system use to provide heat. See “Engine Coolant
Heater” in
the Index.
Ventilation
For mild outside temperatures when little heating or
cooling is needed, use VENT to direct outside air through
your vehicle. Your vehicle also has the flow-through
ventilation system described later
in this section.
Defogging and Defrosting
Your system has two settings for clearing the front and side
windows.
To defrost the windows quickly, use FRONT.
For maximum defroster performance, set both
driver and passenger temperature controls to the
warmest setting.
To warm passengers while keeping the windows clear,
use
BLEND.
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Heating
On cold days, use HTR with the temperature knob all
the way in the red area. The system will bring in outside
air, heat it and send it to the floor ducts.
Ventilation System
If your vehicle has an engine coolant heater, you can use
it to help your system provide warm air faster when it’s
cold outside
(0°F (-18°C) or lower). An engine coolant
heater warms the coolant your engine and heating
system use to provide heat. See “Engine Coolant
Heater” in
the Index.
Defogging and Defrosting
Your system has two settings for clearing the front and
side windows.
To defrost the windows quickly, use
FRONT and full hot
(90°F (32°C)). Driver sets
temperature and selects high fan speed.
To warm
passengers while keeping the windows clear, push the
AIR FLOW button until WINDSHTELDFLOOR
appears
in the display. Select fan speed for comfort and
windshield clearing performance. Adjust the direction
of
airflow by moving the
louvered vents.
Your vehicle’s flow-through ventilation system supplies
outside air into the vehicle when
it is moving. Outside
air will also enter the vehicle when the
air conditioning
fan is running.
If the airflow seems very low when the fan knob is
turned to the highest setting regardless of
the mode
setting, your passenger compartment air filter may need
to be replaced. See “Maintenance Schedule” in
the Index.
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Engine Overheating
You will find a coolant temperature gage and a hot
engine warning light on your instrument panel. See
“Engine Coolant Temperature Gage” and “Engine
Coolant Temperature Warning Light” in the Index.
You
also have a low coolant light on your instrument panel.
See “Low Coolant Light” in the Index.
If Steam Is Coming From Your Engine
L
Steam from an overheated engine can burn you
badly, even if you just open the hood. Stay away
from the engine if you see or hear steam coming
from it. Just turn it off and get everyone away
from the vehicle until it cools down. Wait until
there
is no sign of steam or coolant before you
open the hood.
If you keep driving when your engine
is
overheated, the liquids in it can catch fire. You or
others could be badly burned. Stop your engine if
it overheats, and get out of the vehicle until the
engine is cool.
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1 NOTICE:
I I
If your engine catches fire because you keep
driving with no coolant, your vehicle can
be
badly damaged. The costly repairs would not be
covered by your warranty.
If No Steam Is Coming From Your Engine
If you get the overheat warning but see or hear no
steam, the problem may not be too serious. Sometimes
the engine can get a little too hot when you:
0 Climb a long hill on a hot day.
0 Stop after high-speed driving.
0 Idle for long periods in traffic.
0 Tow a trailer. If you
get the overheat warning with no sign of steam,
try this for
a minute or so:
1. Turn off your air conditioner.
2. Turn on your heater to full hot at the highest fan
speed and open the window as necessary.
3. If you’re in a traffic jam, shift to NEUTRAL (N);
otherwise, shift to the highest gear while
driving
-- AUTOMATIC OVERDRIVE (@).
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 two or three minutes while you’re parked, to see if
the warning stops. But then, if you still have the
warning, turn ofthe 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.
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Cooling System
When you decide it’s safe to lift the hood, here’s what
you’ll see:
A. Coolant Recovery Tank
B. Electric Engine Fans
C. Radiator Pressure Cap
h!~ CAUTION:
An electric 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.
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The coolant level should be at or above the COLD mark
on the overflow hose in the coolant bottle.
If it isn’t, you may have a leak in the radiator hoses,
heater hoses, radiator, water
pump or somewhere else in
the cooling system. Heater and radiator
hoses, and other engine
parts, can be very hot. Don’t touch them.
If you
do, you can be burned.
Don’t run the engine
if there is a leak. If you run
~ the engine, it could lose all coolant. That could
~ cause an engine fire, and you could be burned.
’ Get any leak fixed before you drive the vehicle.
Engine damage from running your engine without coolant isn’t covered by your warranty.
If there seems to be no leak, with the engine on, check to
see if the electric engine fans are running.
If the engine
is overheating, both fans should be running. If they
aren’t, your vehicle needs service.
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How to Add Coolant to the Coolant
Recovery Tank
~~
NOTICE:
If you haven’t found a problem yet, but the coolant level I In cold weather, water can freeze and crack the I isn’t at the COLD mark, add a 50/50 mixture of clean
water (preferably distilled) and DEX-COOL@
(silicate-free) antifreeze at the coolant recovery tank.
(See “Engine Coolant” in the Index for
more information.)
/a CAUTION:
Adding only plain water to your cooling system
can be dangerous. Plain water, or some other
liquid like alcohol, can boil before the proper
coolant mix will. Your vehicle’s coolant warning
system is set for the proper coolant mix. With
plain water or the wrong mix, 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 mix of clean
water and
DEX-COOL@ coolant. engine,
radiator, heater core and other parts.
Use the recommended coolant and the proper
coolant
mix.
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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
COLD mark, start your vehicle.
If the overheat warning continues, there’s one more
thing you can try.
You can add the proper coolant mix
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.
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