check engine light OLDSMOBILE SILHOUETTE 1997 Owners Manual

Air Bag Readiness Light
There is an air bag readiness light on the instrument
panel, which shows a deployed air bag. The system
checks the air bag’s electrical system for malfunctions.
The light tells you if there is an electrical problem. The
system check includes
the air bag sensors, the air bag
module, the wiring and the diagnostic module. For
more information on the air bag system, see “Air Bag”
in the Index.
This light will come on
when you start your engine,
and it will tlash for a few
seconds. Then the light
should
go out. This means
the system
is ready.
If
the air bag readiness light stays on after you start the
engine or comes
on when you are driving, your air bag
system may not work properly. Have your vehicle
serviced right away. The air
bag readiness light should flash for a few
seconds when you turn the key to
RUN. If the light
doesn’t come on then, have
it fixed so it will be ready to
warn you if there is a problem.
Charging System Indicator Light
1+1
The charging system light
will come on when you turn
on the ignition as a check to
show you it is working. It
will remain on as long as
the engine is
not running.
It should go out once the engine is running. If it stays
on, or comes on while you are driving, you may have a
problem with the charging system. It could indicate that
you have problems with a generator drive belt, or
another electrical problem. Have
it checked right away.
Driving while this light is on could drain your battery.
If you must drive a short distance with the light on, be
certain to turn
off all your accessories, such as the radio
and air conditioner.
ProCarManuals.com

Low Traction Light (Option)
If your vehicle has the
traction control system,
there will be a LOW
LOW
TRACTION
TRACTION light on the
instrument panel.
When your anti-lock system is adjusting brake pressure
to help avoid
a braking skid, or when your traction
control system is limiting wheel spin,
the LOW
TRACTION light will come on. Slippery road
conditions may exist
if this light comes on, so adjust
your driving accordingly. The light will come on and
stay on for four seconds when your anti-lock system
adjusts brake pressure for less than four seconds or
when your traction control system limits wheel spin
for less than four seconds. Otherwise, the light will go
out as soon as the anti-lock system stops adjusting brake
pressure or the traction control system stops limiting
wheel spin. The
LOW TRACTION
light also comes on briefly, as
a bulb check, when the engine is started. If the light
doesn’t come on then, have it fixed
so it will be there
to tell you when the system is active.
Engine Coolant Temperature Gage
This gage shows the
engine coolant temperature.
If the gage pointer moves
into the red area, your
engine is too hot!
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.
In “Problems on the Road,” this manual shows what to
do. See “Engine Overheating”
in the Index.
2-98
ProCarManuals.com

Malfunction Indicator Lamp
(Service Engine Soon Light)
SERVICE ENGINE
SOON
Your Oldsmobile is
equipped with a computer
which
rr mitors operation
of the fuel, ignition and
emission control systems.
This system is called
OBD I1 (On-Board
Diagnostics-Second Generation) and is intended to
assure that emissions are at acceptable levels for the
life
of the vehicle, helping to produce a cleaner
environment. The SERVICE ENGINE
SOON light
comes on and
a chime will sound to indicate that there is
a problem and service is required. Malfunctions often
will be indicated by
the system before any problem is
apparent. This may prevent more serious damage to
your vehicle. This system is also designed to assist
your service technician
in correctly diagnosing any
malfunction.
NOTICE:
If you keep driving your vehicle with this light
on, after a while, your emission controls may not
work as well, your fuel economy may not be as
good and your engine may not run as smoothly.
This could lead to costly repairs that may not be
covered by your warranty.
This light should come on, as a check to show you it is
working, when the ignition is on and the engine is not
running.
If the light doesn’t come on, have it repaired.
This light will also come on during
a malfunction in one
of two ways:
0
a
Light Flashing -- A misfire condition has been
detected. A misfire increases vehicle emissions and
may damage the emission control system on your
vehicle. Retailer or qualified service center diagnosis
and service is required.
Light On Steady -- An emission control system
malfunction has been detected
on your vehicle.
Retailer or qualified service center diagnosis and
service may be required.
2-100
ProCarManuals.com

Have you recently changed brands of fuel?
If
so, be sure to fuel your vehicle with quality fuel (see
“Fuel” in the Index). Poor fuel quality will cause your
engine not to run as efficiently
as designed. You may
notice this as stalling after start-up, stalling when you
put the vehicle into gear, misfiring, hesitation
on
acceleration or stumbling on acceleration. (These
conditions may go away once the engine
is warmed up.)
This will be detected by the system and cause
the light
to turn on.
If you experience one or more of these conditions,
change the fuel brand you use. It will require at least one
full tank
of the proper fuel to turn the light off.
If none of the above steps have made the light turn off,
have your retailer or qualified service center check
the
vehicle. Your retailer has the proper test equipment and
diagnostic tools to fix any mechanical or electrical
problems that may have developed.
Oil Pressure Light
Your vehicle is equipped
with an oil pressure warning
light. Your oil pressure
indicator lets
you know
when you may have a
problem with your engine
oil pressure.
When
the engine is running, this light may come
on to indicate that
the engine’s oil level may be
dangerously low, or there may be another problem
causing low
oil pressure.
2-102
ProCarManuals.com

Driving your vehicle with low oil pressure can
cause extensive engine damage. Have your vehicle
serviced immediately.
A CAUTION:
Don’t keep driving if the oil pressure is low. If
you do, your engine can become so hot that it
catches fire. You or others could be burned.
Check your oil
as soon as possible and have your
vehicle serviced.
I NOTICE:
Damage to your engine from neglected oil
problems can be costly and
is not covered by
your warranty.
Low Oil Level Light
If this light comes on, it
means your engine is low
on oil.
LEVEL
You need to check the oil level right away. Driving your
vehicle without enough oil can cause extensive engine
damage. Have your vehicle serviced immediately.
2-103
ProCarManuals.com

To help avoid hearing loss or damage:
Adjust the volume control to the lowest setting.
Increase volume slowly until you hear comfortably
and clearly.
NOTICE:
r
Before you add any sound equipment to your
vehicle
-- like a tape player, CB radio, mobile
telephone or two-way radio
-- be sure you can add
what you want.
If you can, it’s very important to
do it properly. Added sound equipment may
interfere with the operation of your vehicle’s
engine, Delco radio or other systems, and even
damage them. Your vehicle’s systems may
interfere with the operation of sound equipment
that has been added improperly.
So, before adding sound equipment, check with
your retailer and be sure to check Federal rules
covering mobile radio and telephone units.
Care of Your Cassette Tape Player
A tape player that is not cleaned regularly can cause
reduced sound quality, ruined cassettes or a damaged
mechanism. Cassette tapes should be stored in their
cases away from contaminants, direct sunlight and
extreme heat. If they aren’t, they may not operate
properly or may cause failure of the tape player.
Your tape player should be cleaned regularly after every
50 hours of use. Your radio may display CLN to indicate
that you have used your tape player for
50 hours without
resetting the tape clean timer. If this message appears
on the display, your cassette tape player needs to be
cleaned.
It will still play tapes, but you should clean it
as soon as possible to prevent damage to your tapes and
player. If you notice a reduction in sound quality, try a
known good cassette
to see if it is the tape or the tape
player at fault. If this other cassette has no improvement
in sound quality, clean the tape player.
3-28
ProCarManuals.com

Avoid needless heavy braking. Some people drive
in spurts
-- heavy acceleration followed by heavy
braking
-- rather than keeping pace with traffic. This
is a mistake. Your brakes may not have time to cool
between hard stops. Your brakes will wear out much
faster if you do a lot
of heavy braking. If you keep pace
with the traffic and allow realistic following distances,
you will eliminate a lot of unnecessary braking. That
means better braking and longer brake life.
If your engine ever stops while you’re driving, brake
normally but don’t pump your brakes. If you do, the
pedal may get harder to push down.
If your engine
stops, you will still have some power brake assist. But
you will use it when you brake. Once the power assist is
used up,
it may take longer to stop and the brake pedal
will be harder
to push.
Anti-Lock Brakes (ABS)
Your vehicle has anti-lock brakes (ABS). ABS is an
advanced electronic braking system that will help
prevent a braking skid.
When you start your engine, or when you begin to drive
away, your anti-lock brake system
will check itself.
You may hear a momentary motor or clicking noise
while this test is going on, and you may even notice
that your brake pedal moves
a little. (You may also hear
a clicking noise
if you leave the ignition in the RUN
position for about four seconds before starting the
vehicle.) This is normal.
If there’s a problem with the
anti-lock brake system, this
warning light will stay on or
flash. See “Anti-Lock
Brake System Warning
Light” in the Index.
ProCarManuals.com

I A CAUTION:
I
Snow can trap exhaust gases under your vehicle.
This can cause deadly
CO (carbon monoxide) gas
to get inside.
CO could overcome you and kill
you. You can’t see it
or smell it, so you might not
know it is in your vehicle. Clear away snow from
around the base
of your vehicle, especially any
that is blocking your exhaust pipe. And check
around again from time to time to be sure snow
doesn’t collect there.
Open a window just
a little on the side of the
vehicle that’s away from the wind. This
will help
keep
CO out.
Run your engine only as long as you must. This saves
fuel. When you run the engine, make it go a little faster
than just idle. That is, push the accelerator slightly. This
uses less fuel for the heat that you get and it keeps the
battery charged. You will need a well-charged battery to
restart the vehicle, and possibly for signaling later on
with your headlamps. Let the heater run for awhile.
Then, shut the engine off and close the window almost
all the way to preserve
the heat. Start the engine again
and repeat this only when you feel really uncomfortable
from the cold. But
do it as little as possible. Preserve the
fuel as long as you can.
To help keep warm, you can get
out of the vehicle and do some fairly vigorous exercises
every half hour or
so until help comes.
4-28
ProCarManuals.com

1. Check the other vehicle. It must have a 12-volt
battery with
a negative ground system.
NOTICE:
If the other system isn’t a 12-volt system with a
negative ground, both vehicles can be damaged.
Get the vehicles close enough
so the jumper cables
can reach, but be sure the vehicles aren’t touching
each other.
If they are, it could cause a ground
connection you don’t want.
You wouldn’t be able to
start your Oldsmobile, and the bad grounding could
damage the electrical systems.
NOTICE:
To avoid the possibility of the vehicles rolling, set
the parking brake firmly on both vehicles
involved in the jump start procedure. Put an
automatic transaxle in PARK
(P).
2. Turn off the ignition on both vehicles. Unplug
unnecessary accessories plugged into the cigarette
lighter or accessory power outlet. Turn
off all lamps
that aren’t needed as well as radios. This will avoid
sparks and help save both batteries. In addition, it
could save your radio!
NOTICE:
~~ -
If you leave your radio on, it could be badly
damaged. The repairs wouldn’t be covered by
your warranty.
3. Open the hoods and locate the batteries.
An electric fan 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.
5-4
ProCarManuals.com

When you put the cap back on, turn it to the right
(clockwise) until you hear a clicking sound. Make sure
you fully install the cap. The diagnostic system can
determine if the fuel cap has been left
off or improperly
installed. Ths would allow
fuel to evaporate into the
atmosphere. See “Malfunction Indicator Lamp” in
the Index.
NOTICE:
If you need a new cap, be sure to get the right
type. Your retailer can get one for you.
If you get
the wrong type,
it may not fit properly. This may
cause your malfunction indicator lamp to light
and your fuel tank and emissions system may be
damaged. See “Malfunction Indicator Lamp” in
the Index.
Checking Things Under the Hood
An electric fan under the hood can start up and
injure you even when the engine is not running.
Keep hands, clothing and tools away from any
underhood electric fan.
1
Things that burn can get on hot engine parts and
start a fire. These include liquids like gasoline,
oil, coolant, brake fluid, windshield washer and
other fluids, and plastic or rubber.
You or others
could be burned. Be careful not to drop or spill
things that will burn onto a hot engine.
6-7
ProCarManuals.com