1993 BUICK RIVIERA radiator

Vehicle Symbols
These are some of the symbols you will find on your vehicle.
For example,
these symbols
are used on an
original battery:
POSSIBLE A
CAUTION
INJURY
PROTECT EYES BY
SHIELDING
CAUSTIC
BURNS AVOID
SPARKS
OR
FLAMES
SPARK
OR ,111,
COULD pq
FLAME
EXPLODE BATTERY
These symbols
are important
for you and
your passengers whenever your
vehicle
is
driven:
FASTEN SEAT 4
BELTS
These symbols
have to do with
your lights:
SIGNALS TURN
HIGH BEAM
OR = =o
FOG LAMPS $0
These symbols
are on some
of
your controls:
WINDSHIELD ’ ’ ’ 4- #-
WASHER
f0 -**
WINDSHIELD Q
WASHER I
WINDSHIELD
DEFROSTER
WINDOW
DEFOGGER
VENTILATING
FAN
L.
HEADLAMP - ,~*-,
WASHER iQ
WIPER -
L
These symbols
are used on
warning and
indicator lights:
COOLANT F-
TEMP --
ENGINE
CHARGING
I-1
BATTERY SYSTEM
RADIATOR
a
COOLANT
FUEL
ENGINE OIL
PRESSURE
Wb
TEMP OIL &
ANTILOCK (@)
BRAKE
Here are some
other symbols
you may see:
FUSE
RADIO
‘‘ill
SELECTOR
RADIO
k
VOLUME
CONDITIONING
AIR 33
HATCHBACK /y
TRUNK
RELEASE
t LIGHTER 1-
HORN
SPEAKER
cr
~ 12 , .

When you decide it’s safe to lift the hood, here’s what
you’ll
see:
Coolant recovery tank
Radiator pressure cap
Electric engine fan
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.
I
If the coolant inside the coolant recovery tank is boiling,
don’t do anything else until it coals down. The coolant level should be at or above
“FULL COLD.”
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.
198

I
A CAUTION:
' ~ Heater and radiator hoses, and other engine
--# parts, can be very hot. Don't touch them. If you I 1
.': 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.
I_ '1 Get any leak fixed before you drive the vehicle. /I
,
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
5060 mix of
clean water and a proper antifreeze.

I
I
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. Don’t spill coolant on a hot engine.
When the coolant in the coolant recovery tank is at or
above
“FULL COLD,” 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.

A 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
-- even a little -- they can come out I
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. $@.:;<;J &gjK&p
sa , Ad

How to Ad,d Coolant to the Radiator
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 to the left 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.
1 2. Then keep turning
the pressure cap,
but now push down as you turn it.
Remove the pressure cap.
3. Fill the radiator
with the proper
mix, up to the base
of the filler neck.
202

1
4. Then fill the coolant recovery tank to “FULL
COLD.’3
6. Start the engine and let it run until you can feel the
upper radiator hose getting hot. Watch out forthe
-
5. Put the cap back on the coolant recovery tank, but engine fan.
filler neck may be lower. If the level is lower, add
more of the proper mix through the filler neck until
the level reaches the base of the filler neck.
leave the
radiator pressure cap
off. 7. By this time the coolant level inside the radiator
203

A CAUTION:
Turning the radiator pressure cap when 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.
Add coolant mix at the recovery tank, but be careful not
to spill it.
A 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. Don’t spill coolant on a hot engine.
Radiator Pressure Cap
When you replace your radiator pressure cap, an ACS
cap
is recommended.
Thermostat
Engine coolant temperature is controlled by a thermostat
in the engine coolant system. The thermostat stops ,the
flow of coolant through the radiator until the coolant
reaches a preset temperature.
When you replace your thermostat, an AC@ thermostat
is recommended. I
233