engine overheat Oldsmobile Cutlass Supreme 1996 Owner's Manuals

The 1996 Oldsmobile Cutlass Supreme Owner’s Manual
Seats and Restraint Systems .............................................................
This section tells you how to use your seats and safety belts properly. It also explains the “SRS” system.
This section explains how to
start and operate your Oldsmobile.
This section tells you how to adjust the ventilation and comfort controls and how to operate your
audio system.
Here you’ll find information and tips about the road and how to drive under different conditions.
This section tells you what to do
if you have a problem while driving, such as a flat tire or
overheated engine, etc.
ServiceandAppearanceCare ............................................................
Here the manual tells you how to keep your Oldsmobile running properly and looking good.
Maintenance Schedule ..................................................................
This section tells you when to perform vehicle maintenance and what fluids and lubricants to use.
Customer Assistance Information ........................................................
This section tells you how to contact Oldsmobile for assistance and \
how to get service and owner publications.
It also gives you information.on “Reporting Safety Defects” on page\
8-7.
Index ........................................................................\
..........
Here’s an alphabetical listing of almost every subject in this manual. You can use it to quickly find
something you want to read.
FeaturesandControls ..................................................................
Comfort Controls and Audio Systems .................. ’. ..................................
YourDrivingandtheRoad ..............................................................
ProblemsontheRoad ..................................................................
1-1
2-1
3-1
4-1
5-1
6- 1
7-1
8-1
9-1
i

Yneine Coolant Heater (Option)
In very cold weather,
0°F (- 18 O C) or colder,
the engine coolant heater
can help. You’ll get
I
easier starting and better
fuel economy during
engine warm-up.
A CAUTION:
Plugging the
could cause an electrical shock. Also, the wrong
kind
of extension cord could overheat and cause
a fire.
You could be seriously injured. Plug the
cord into a properly grounded three-prong
110-volt AC outlet.
If the cord won’t reach, use a
heavy-duty three-prong extension cord rated for
at least 15 amps.
Usually, the coolant heater should be plugged in a
minimum of four hours prior to starting your vehicle.
To Use the Coolant Heater
1. Turn off the engine.
2. Open the hood and unwrap the electrical cord.
3. Plug it into a normal, grounded 110-volt AC outlet.
4. After you’ve used the coolant heater, be sure to
store the cord as it was before to keep it away
from moving engine parts.. If you don’t, it could
be damaged.
How long should you keep the coolant heater plugged
in? The answer depends on the outside temperature, the
kind of oil you have, and some other things. Instead of
trying
to list everything here, we ask that you contact
your Oldsmobile retailer in the area where you’ll be
parking your vehicle. The retailer can give you the best
advice for that particular area.

NOTICE:
Don’t drive in SECOND (2) for more than
25 miles (41 km) at speeds over 55 mph
(88 km/h), or you can damage your transaxle.
Use AUTOMATIC OVERDRIVE
(@) or
THIRD
(3) as much as possible.
Don’t shift into SECOND
(2) unless you are going
slower than
65 mph (105 km/h), or you can
damage your engine.
FIRST
(1): This position gives you even more power
(but lower fuel economy) than
SECOND (2). You can
use it on very steep hills, or in deep snow or
mud. If the
shift lever is put in
FIRST (l), the transaxle won’t shift
into first gear until the vehicle is going slowly enough.
NOTICE:
If your front wheels can’t rotate, don’t try to
drive. This might happen if you were stuck in
very deep sand or mud or were up against.
a solid
object. You could damage your transaxle.
Also,
if you stop when going uphill, don’t hold
your vehicle there with only the accelerator
pedal. This could overheat and damage the
transaxle. Use your brakes or shift into.PARK (P)
to hold your vehicle in position on
a hill.
2-17

Leaving Your Vehicle With the
Engine Runr ‘ng
A CAUTION:
It can be dangerous to leave your vehicle with the
engine running. Your vehicle could move
suddenly if the shift lever is not fully in
PARK (P)
with the parking brake firmly set. And, if you
leave the vehicle with the engine .running, it could
overheat and even catch fire. You or others could
be injured. Don’t leave your vehicle with the engine running unless you have to.
If you have to leave your vehicle with the engine
running, be sure your vehicle
is in PARK (P) and your
parking brake is firmly set before you leave it. After
you”ve moved the shift lever into the PARK (P)
position, hold the regular brake pedal down. Then, see
if you can move the shift lever away from PARK (P)
without first pulling it toward you (or, if you have a
console shift lever, without first pushing the button). If
you can, it means that the shift lever wasn’t fully locked
into PARK (P).
Torque Lock
If you are parking on a hill and you don’t shift your
transaxle into PARK
(P) properly, the weight of the
vehicle may put too much force on the parking pawl
in
the transaxle. You may find it difficult to pull the shift
lever out of PARK (P). This is called “torque lock.” To
prevent torque lock, set the parking brake and then shift
into PARK (P) properly before you leave the driver’s
seat. To find out how, see “Shifting Into PARK (P)” in
the Index.
.When you are ready to drive, move the shift lever
out of
PARK (P)
before you release the parking brake.
If torque lock does occur, you may need to have another
vehicle push yours a little uphill to take some of the
pressure from the transaxle,
so you can pull the shift
lever out of PARK (P).
2-21

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

'- .
You have a gage that
(shows the engine coolant
temperqture. If 'the gage
pointer'moves into the red
. - .
area, your engine is too hot!
.. , _.
That reading means the sanie thing as the warning iight.
It nieans 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 kd
turn off the engine as soon as possible.
In "Problems on the Road," this manual sh0w.s what to
do.-See "Engine Overheating" in the Index.
, ',

Thrn Signals When Towing a Trailer
When you tow a trailer, your vehicle may need a different turn signal flasher and/or extra wiring. Check
with your Oldsmobile retailer. The green arrows on your
instrument panel will flash !whenever you signal a
turn
or lane change. Properly hooked up, the trailer lamps
will also flash, telling other drivers you’re about to turn,
change lanes or stop.
When towing a trailer, the green arrows on your
instrument panel will flash for turns even if the bulbs on
the trailer are burned out. Thus, you may think drivers
behind you
are seeing your signal when they are not. It’s
important to check occasionally to be sure the trailer
bulbs
are still working.
Driving On Grades
Reduce speed and shift to a lower gear before you ,start
down
a long or steep downgrade. If you don’t shift
down, you might have to use your brakes
so much that
they would get hot and no longer work well.
On a long uphill grade, shift down and reduce your
speed to. around
45 mph (70 krn/h) to reduce the
possibility
of engine and transaxle overheating. If you
have overdrive, you may prefer to drive in
THIRD
(3) instead of AUTOMATIC OVERDRIVE (a)
(or, as you need to, a lower gear).
Parking on Hills
You really should not park your vehicle, with a trailer
attached, on a hill. If something goes wrong, your rig
could start to move. People can be injured, and both
your vehicle and the trailer can be damaged.
But
if you ever have to park your rig on a hill, here’s
how to do it:
1. Apply your regular brakes, but don’t shift into
2. Have someone place chocks under the trailer wheels.
3. When the wheel chocks are in place, release-the
regular brakes until the chocks absorb the load.
4. Reapply the regular brakes. Then apply your parking
brake, and then shift to PARK
(P).
5. Release the regular brakes. PARK
(P) yet.
4-34

Engine Overheating
You will find a coolant temperature gage and a warning
light about a hot engine 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
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
opening 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.
~
I NOTICE:
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.
5-13

If No Steam,Is Coming From Your Engine If you no longer have the overheat warning, you can
If you get the overheat waning but
see or hear no
the engine can get a little too hot when you: drive. Just
to be safe, drive slower for about 10 minutes.
If the warning doesn’t come back on, you can
~ steam, the problem may not be too serious. Sometimes drive normally.
I Y Y
’ 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: ,.
1. Turn off your air conditioner. 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
1
warning, turn off the 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.
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 (@)
or THIRD (3).
5-14

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