1998 CADILLAC DEVILLE check engine light

Downloaded from www.Manualslib.com manuals search engine If the Light Is On Steady Have you recentIy changed brands of fuel?
You may be able to correct the emission system
malfunction by considering the following:
Did you recently put fuel into your vehicle?
If
so, reinstall the fuel cap, making sure to fully install
the cap. The diagnostic system can determine if the fuel
cap has been left
off or improperly installed. A loose or
missing fuel cap will allow fuel to evaporate into the
atmosphere.
A few driving trips with the cap properly
installed should turn the light
off.
Did you just drive through a deep puddle of water?
If so, your electrical system may be wet. The condition
will usually be corrected when the electrical system
dries out. A few driving trips should turn the light off.
Are you low on fuel?
As your engine starts to run out of fuel, your engine may
not run as efficiently as designed since small amounts of
air are sucked into the fuel line causing a misfire. The
system can detect this. Adding fuel should correct this
condition. Make sure to install the fuel cap properly.
It
will take a few driving trips to turn the light off. 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 dealer or qualified service center check the
vehicle. Your dealer has the proper test equipment and
diagnostic tools to fix any mechanical
or electrical
problems that may have developed.
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Downloaded from www.Manualslib.com manuals search engine Oil Pressure Light 1
This light tells you if there
could be a problem with
your engine oil pressure.
The light goes on when you
turn your key to RUN or
START. It goes off once you start your engine. That’s a
check to be sure the light works.
If it doesn’t come on,
be sure
to have it fixed so it will be there to warn you if
something goes wrong.
When the light
comes on and stays on, it means
that oil isn’t flowing through your engine properly. You
could be low
on oil and you might have some other
system problem.
/!1 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.
NOTICE:
Damage to your engine from neglected oil
problems can be costly and
is not covered by
your warranty.
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Downloaded from www.Manualslib.com manuals search engine serviced by a technician as soon as possible. If the brake
warning light is on, follow the directions in that part.
CHECK COOLANT LEVEL - 2: This message
will appear when there is a low level of engine coolant.
Have the cooling system serviced by a technician as
soon as possible.
CHECK FUEL GAUGE - 39: This message will
appear when the
fuel supply is less than 4 gallons
(15.2 L) and the display is turned off (digital clusters
only).
A single chime will also sound when this message
is displayed.
CHECK GAS CAP - 61: This message will appear if
the gas cap has not been fully tightened.
You should
recheck your gas cap to ensure that it’s fully tightened.
CHECK OIL LEVEL - 36: For correct operation of
the low oil sensing system, your vehicle should be on a
level surface. A false
CHECK OIL LEVEL message
may appear if the vehicle is parked on grades. The oil
level sensing system does not check for actual oil level
if the engine has been off for a short period of time, and
the oil level is never sensed while the engine is running.
If the
CHECK OIL LEVEL message appears, and your
vehicle has been parked on level ground with the engine
off for at least 30 minutes, the oil level should be
checked by observing the oil dipstick. Prior to checking
the oil level, be sure the engine has been
off for five minutes and your vehicle is on a level surface. Then
check the dipstick and add oil if necessary. See “Engine
Oil’’
in the Index.
CHECK WASHER FLUID - 25: This message will
appear for several seconds indicating that
you need
washer solvent.
CRUISE ENGAGED - 43: This message will
appear for a few seconds when you select a speed at
which to cruise.
DOOR A JAR - 141: A door other than the driver’s
door is open or ajar when this message appears. The
vehicle’s engine must be running and the transaxle not
in PARK (P) for this message to display. A chime will
also sound when the vehicle’s speed
is greater than
5 mph (8 km/h).
DRIVER DOOR A JAR - 140: This message will
display when the vehicle is being shifted out of
PARK (P) with the engine running to signal that the
driver’s door is open or ajar.
A chime will also sound
when the vehicle’s speed is greater than
5 mph (8 km/h).
ENGINE COOLANT HOT, IDLE ENGINE - 44:
This message will appear when the engine coolant
temperature is over
248 “F (1 26 O C). To avoid added
strain on a hot engine, turn off the climate control
system. Stop and allow your vehicle to idle until it cools
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Downloaded from www.Manualslib.com manuals search engine SERVICE AIR BAG - 83: There is a problem with the
Supplemental Inflatable Restraint (air bag) system when
this message appears. Let only a qualified technician
work on your vehicle. See your dealership for service
at once.
SERVICE BRAKE FLUID SWITCH - 37: A defect
in the brake fluid detection circuit causes this message
to display if the ignition
is in RUN. Have the brake
system serviced by a technician as soon as possible.
If
the brake warning light is on, refer to the directions
listed in that part.
SERVICE CHARGING SYS - 102: This message
will display when a problem with the charging system
has been detected. Have your vehicle serviced at
your dealership.
SERVICE ELECTRIC SYS - 106: This message will
display
if an electrical problem has occurred within the
vehicle’s electrical system. Have your
vehicle serviced
by your dealership.
SERVICE FUEL SYSTEM - 101: The Powertrain
Control Module (PCM) has detected a problem within
the
fuel system when this message appears. See your
dealership for service.
SERVICE IDLE CONTROL - 107: A problem with
the idle control has occurred when this message
displays. Bring your vehicle to your dealership
for service.
SERVICE RIDE SYS - 84: This message is displayed
to indicate that the suspension system is not operating
properly. To correct this problem, have your vehicle serviced at your dealership.
SERVICE STEERING SYS - 127: This message is
displayed when a problem has been detected in the
Magnasteer” variable effort steering system. Service is
required.
A single chime will also sound when this
message is displayed.
SERVICE TRANSMISSION - 100: If a problem is
detected with the transaxle, this message will appear.
Have your vehicle checked by your dealership.
SERVICE VEHICLE SOON - 3: If a problem is
detected with the transaxle, this message will appear.
Have your vehicle checked by your dealership.
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Downloaded from www.Manualslib.com manuals search engine To help avoid hearing loss or damage:
Adjust the volume control to the lowest setting.
Increase volume slowly until you hear comfortably
and clearly.
I NOTICE:
Before you add any sound equipment to your
vehicle
-9 like a tape player, CB radio, mobile
telephone or two-way radio
9- 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, 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 dealer 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 or
CLEAN TAPE 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.
The recommended cleaning method for your cassette
tape player is the use of a scrubbing action,
non-abrasive cleaning cassette with pads which scrub
the tape head
as the hubs of the cleaner cassette turn.
The recommended cleaning cassette is available through
your dealership
(GM Part No. 12344789).
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Downloaded from www.Manualslib.com manuals search engine Avoid needless’heavy braking. Some people drive in Anti-Lock Brakes (ABS)
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 Your
vehicle has anti-lock brakes
(ABS). ABS is an
,advanced electronic braking system that will help
prevent a braking skid.
do a lot of heavy braking.
If you keep pace with the
When you start your engine and begin to drive away,.
traffic and
allow realistic. following distances, you will
your anti-lock brake system will check itself. You may
eliminate a lot
of unnecessary braking. That means
hear a momentary motor or clicking noise while this test
better braking and longer brake life.
is going on, and you ‘may even notice that your brake
If your engine ever stops while,you’re driving, brake pedal moves a
little. This is normal.
no-&mlly 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
’ If there’s a problem with the
1 anti-lock brake system, this
warning light will stay on.
See “Anti-Lock Brake
System -Warning Light” in
the Index. ~
’( 4-7

Downloaded from www.Manualslib.com manuals search engine Here are some tips on night driving.
0 Drive defensively.
0 Don’t drink and drive.
Since you can’t see as well, you may need to slow
down and keep more space between you and
other vehicles.
Slow down, especially on higher speed roads. Your
headlamps can light up only
so much road ahead.
0 In remote areas, watch for animals.
If you’re tired, pull off the road in a safe place
and rest.
Night Vision
No one can see as well at night as in the daytime. But as
we get older these differences increase.
A 50-year-old
driver may require at least twice as much light to see the
same thing at night as a 20-year-old.
What you do in the daytime can also affect your night
vision. For example, if you spend the day in bright
sunshine you are wise to wear sunglasses. Your eyes
will have less trouble adjusting to night. But if you’re
driving, don’t wear sunglasses at night. They may cut
down
on glare from headlamps, but they also make a lot
of things invisible. You
can be temporarily blinded by approaching
headlamps. It can take a second or two, or even several
seconds, for your eyes to readjust to the dark. When you
are faced with severe glare (as from a driver who
doesn’t lower the high beams, or a vehicle with
misaimed headlamps), slow down a little. Avoid staring
directly into the approaching headlamps.
Keep your windshield and all the glass on your vehicle
clean
-- inside and out. Glare at night is made much
worse by dirt on the glass. Even the inside of the glass
can build up a film caused by dust. Dirty glass makes
lights dazzle and flash more than clean glass would,
making the pupils of your eyes contract repeatedly.
Remember that your headlamps light up far less of a
roadway when you are in a turn or curve. Keep your
eyes moving; that way, it’s easier to pick out dimly
lighted objects. Just as your headlamps should be
checked regularly for proper aim,
so should your eyes
be examined regularly. Some drivers suffer from night
blindness
-- the inability to see in dim li,ght -- and
aren’t even aware of it.
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Downloaded from www.Manualslib.com manuals search engine City Driving Here are ways to increase your safety in city driving:
Know the best way to get to where you are
going. Get
a city map and plan your trip into an
unknown part of the city just as you would for a
cross-country trip.
Try to use the freeways that rim and crisscross most
large cities. You’ll save time and energy. (See the
next part, “Freeway Driving.”)
One
of the biggest problems with city streets is the
amount
of traffic on them. You’ll want to watch out for
what the other drivers are doing and pay attention to
traffic signals.
Treat a green light as a warning signal. A traffic
light is there because the comer is busy enough to
need it. When
a light turns green, and just before you
start to move, check both ways for vehicles that have
not cleared the intersection or may be running the
red light.
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