1993 BUICK ROADMASTER coolant

Vehicle Symbols . , . '
mcese are some .of the,symbols you will find on your vehicle. . ' . '".' . '*
I. .. . .- . .* . t . . :.
.. ... .. , I. .'
For example,
these symbols
'
are used on an
original battery:
CAUTION
INJURY
..
POSSIBLE: .' A
.' PR~TECT @
EYES BY
SHIELDING
CAUSTIC
ACID COULD
&
BATTERY CAUSE
BURNS
SPARKS AVOID
OR '"8
FLAMES
COULD
EXPLODE BATTERY
I,
These symbols
are
important
for you.and.
your passengers
whenever your
vehicle-is- ' .
driven: ~ , E , .. , .,
iI
..
DOOR LOCK,' f 1
UNLOCK e
SEAT,
BELTS
WlNDOW
f -1
POWER
These symbols, . _.
have to'do with , .
your lights: ' ,. , - .<
*_
' 'LIGHTING
-8-
MASTER %. . 8
. 'SWITCH /., .
PARKING pf
LIGHTS
HAZARD
WARNING
:A
FLASHER
HIGH
'IGHTS BEAM OR = =o
,. T.hese symbols ',
are on some bf
your controls.:
WIN'DSHIELD. ' ' ' 0- c,
WIPER a Q
WINDSHIELDQ WASHER
** ri I91
WASHER I
. WlNDSHlELD(fji)
DEFROSTER
,) .
WINDOW
DEFOGGER
' WASHER EG
HEADLAMP -
WIPER
These symbols
are used on '
,warning and
indicator lights:
RADIATOR COOLANT
FUEL
ENGINE OIL 'e,
PRESSURE
TEMP
Oli 4%
ANTILOCK. (a)
BRAKE
Bere are some
other symbols
,you may see:
FUSE
RADIO.
CONDITIONING ..
TRUNK
HATCHBACK
e
RELEASE --
LIGHTER e,
SPEAKER
b
?

Engine Coolant Temperature Warning: ’ J
Light
1
I
This light tells you that ‘
your engine coolant has
ovetheated.
If you have
been operating your vehicle
under normal driving
.conditions, you should pull
off the road, stop your
vehicle and
turn the engine
-off as soon as possible.
:I
HOT COOLANT CAN BURN YOU-BADLY!
In “Problems on the Road,” this manual shows what to
do. See “Engine Overheating” in the Index.
Engine Coolant Temperature Gage
This gage shows the engine
coolant temperature,
If the
gaie: pointer moves into the
red area, your engine is too
hot!
: y’,
That reading means the same thing as the warning light.
It means that your engine coolant has overheated.
If you
have been operating your vehicle under normal driving.
conditions, you should pull off-the road, stop your
vehicle and
turn off the engine as soon as possible.
HOT COOLANT CAN BURN YOU BADLY!
In “Problems on the Road,” this manual shows what to
do. See “Engine Overheating” in the Index.
133

Off Auto
When the system is off; the
.. .. . . ..
When the system is set for
automatic, aitwill come
from the
floor o,utlets,. the
instrument panel outlets or
both. Fan speed
will vary
(unless
a blower LO or HI
'. bukon has been pushed) as
the system gets
to and
m,aintaigs the temperature
'; .setting'you have .selected:
The display will show the selected,temperature and ,
.In cold .weather the system will delay. turning on the'
blower, to avoid blowing cold air.
The length ofthe.
delay depends
on engine coolant temperature, .outside
temperature
and time since the engine was last: stafted.
'. , blower speed.

Winter Driving
Here are some tips for winter driving:
Have your Buick in good shape for winter. Be sure
your engine coolant mix is co-rrect.
Snow tires. can help in loose snow, but they may give
you less traction on ice than regular tires. If you do
not expect to be driving
in deep snow, but may have
to travel over ice,
you may not want to switch to
snow tires at all.
You may want to put winter emergency supplies in
your vehicle.
I
I
.. . ..
Include an.ice:scrapGq a small brush .or broom, a supply
of'windshield washer fluid,
a rag, some winter outer
clothing,
a small shovel, a flashlight, a, red. cloth,. and a
couple
.of reflective warning triangles. And, if you will
be driving under:severe conditions, include a small bag
of sand, a piece of ,old carpel .or a couple of burlap. bags
to help provide traction. Be sure y.ou properly secure
these items in your vehicle.

When you decide it’s safe to lift the hood, here’s what
you’ll see:
Coolant recovery tank
Radiator pressure cap

1
I
11 parts, can be very hot. Don’t 1 Ich them. I
do, you can be burned.
Don’t
run the engine if ther I leak. If yo
the engine,
it could lose all coolant. That could
cause an engine Pire, and you could be burned.
Get any leak fixed before you drive the vehicle.
If there seems to be no leaK, start tne engine again to see
if the fan runs when the engine does. If it doesn’t,, your
vehicle needs service. Turn
off the engine.
How to Add Coolant to the Coolant
Recovery Tank
If you,haven’t found a problem yet, but the coolant level
isn’t at or above
“FULL COLD,” add-a 50/50 mixture of
clean water (preferably distilled) and a proper antifreeze
at the coolant recovery tank. (See “Engine Coolant’’ i\
n
the Index for more information about the proper coolant
mix.)
can be dangerous. Plain water, or some other I
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
---- s-- -1 a proper antifr ze.
5
219 1 i

m
m
II
L, CAUTIOP
You can be bu 3d if you spill coolant on hot
engine parts. Coolant contains ethylene
glycc
and it will burn if the engine parts are hot
enough. Don’t
spill coolant on a hot engine.
When the Luolant in the coolant recovery ~~IMC is “1 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 coolantmix
directly to the radiator, but be sure the cooling system is
cool before
you do it.
220

How to Add Coolant to the Radiator
..
i= :.
i i
i t
.. : :.c, - , -, I. .
I
-" I
-c
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.
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
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.