1993 BUICK ROADMASTER Owners Manual

Attach a separate safety chain around the outboard
end
of ,each lower contrbl
am.
Rear Towing Hook-Ups
Attach “T” hook chains to
slots in the frame rails just
both sides.
’ .ahead of rear wheels on
Position the
I-owes sling crossbar directly under the rear
fascia. A 4” x 4” wood beam NOT is needed.
215

1. Turn off yom air conditioner.
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:
Climb a long hill on a.hot day.
Stop :after high speed driving.
Idle for long periods in traffic.
Tow a trailer.
If you get the overheat warning with no sign of steam,
try this
for a minute or so:
If there's still no. sign of steam, push the accelerator until
the .engine speed is about twice
as fast as normal idle-
speed. Bring the engine speed back
to normal idle speed
after two or three minutes.
Now see if the warning stops.
But then,
if you still have the-warning, TURN OF'F THE
ENGINE AND GET EVERYONE OUT OF THE
VEHICLE until it cools down.
You may decide not to 1ift.the hood but to get service
help right away.
217

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

I :I

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.