radiator Oldsmobile Cutlass Supreme 1996 Owner's Manuals

Anti-Lock Brake System Active Light
LOW
TRAC
When your anti-lock system
is adjusting brake pressure
to help avoid a braking skid,
the anti-lock brake system
active light will come
on.
Engine Coolant Temperature Light
HOT
This light tells you that
your engine coolant has
overheated or your radiator
cooling fan is not working.
Slippery road conditions may exist if this light comes
on,
so adjust your driving accordingly. The light will
stay on for a few seconds after the system stops
adjusting brake pressure.
The anti-lock brake system active light also comes on
briefly when you turn the ignition key to RUN. If the
light doesn’t come on then, have
it fixed so it will be
there to
tell you when the system is active. 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.
In “Problems on the Road,” this manual shows what to
do. See “Engine Overheating” in the Index.
2-49

When you decide it’s safe to lift the hood, here’s what
you’ll see:
3.1 L L82 Engine
A. Coolant Recovery Tank
B. Radiator Pressure Cap
C. Electric Engine Fans
I
3.4L LQ 1 Engine
-
A CAUTION:
I
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.
5-15

j If the coolant inside the coolant recovery tank is boiling,
don’t do anything
else until it cools down.
.. - ”r -+
Heater and radiator hoses, and otherengine
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 fiie,
and you could be burned.
Get any leak fixed before you drive the vehicle.
’
I NOTICE:
The coolant level should be at or above the COLD mark
on a cold engine. The coolant level should be at or
above the HOT mark on a hot engine. 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.
r
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 fan(s) are running. If the engine
is overheating, both fan@) should be running; If they
aren’t, your vehicle needs service.
5-16

How to Add Coolant to the Coolant
Recovery Tank
If you haven’t found a problem yet, but the coolant level
isn’t at the COLD mark, add a
50/50 mixture of clean
water
(preferably distilled) and DEX-COOL
(orange-colored, silicate-free) antifreeze at the coolant
recovery
tad. (See “Engine Coolant” in the Index ’for
more information.)
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 50/50 mix of clean
water and
DEX-COOL antifreeze.
NOTICE:
In cold weather, water can freeze and crack the
engine, radiator, heater core and other parts.
Use the recommended coolant and the proper
coolant mix.
5-17

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.
I
I
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
CAUTION: (Continued) 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.
5-18
i

How to Add Coolant to the Radiator
I 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.
2. Then keep turning the
pressure cap, but now
push down as you turn
it. Remove the
pressure cap.
1 CAUTIO
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.
5-19

I
4. Fill the radiator with the
proper
mix, up to the
base of the filler neck.
If you see a stream of
coolant coming from an
air bleed valve, close the
I
valve. Otherwise, close
the valves after the
radiator is filled.
5. Rinse or wipe any spilled coolant from the engine
and compartment.
6. Then fill the coolant recovery tank to the
7. Put the cap back on the coolant recovery tank, but
COLD mark.
leave the radiator pressure cap
off.
5-21

8. Start the engine and let it run until you can feel the
upper radiator hose getting hot. Watch out for the
engine fans.
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.
9. By this time the coolant level inside the radiator
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.
5-22

A. Engine Coolant R&ervoir
B. Radiator Fill Cap
C. Power Steering Fluid Reservoir
D, Engine Oil Fill Cap
E. Engine Oil Dipstick
E Automatic Transaxle Dipstick
G. Brake Fluid Reservoir
H. Air Cleaner
6-8 I

When you open the hood of the 3.4L LQ 1 engine, you'll see:
A. Engine Coolant Reservoir
B. Radiator Fill Cap
C. Power Steering Fluid Reservoir
D. Engine Oil Fill Cap
E. Engine Oil Dipstick
F. Automatic Transaxle Dipstick
G. Brake Fluid Reservoir
H. Air Cleaner
I. Windshield Washer Fluid
J. Battery (located under Windshield Reservoir
Washer Fluid Reservoir)
6-9