1998 CADILLAC DEVILLE fuel cap

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.
2-75

Downloaded from www.Manualslib.com manuals search engine Fuel Gage
PREMIUM U.NLEADED FUEL
ONLY
1
Analog Cluster Digital Cluster
The fuel gage shows approximately how much fuel is in
the tank. It works only when the ignition is
in RUN.
On the digital cluster, if the fuel level is within
approximately 2 gallons (7.6 L) of being full, the letter F is
shown. If the fuel level is less than approximately
3 gallons (1 1.4 L) from being empty, the letter E is shown.
If the fuel supply gets down to approximately 3 gallons
(11.4 L), the number “3” will be displayed on the fuel
gage, and the
FUEL LEVEL LOW message will appear
on the Driver Information Center
@IC). (On the analog
fuel gage, the
FUEL LEVEL LOW message will
also appear.)
Here are a few concerns some owners have had about
the fuel gage. All
of these situations are normal and do
not indicate that anything is wrong with the fuel gage:
At the gas station the gas pump shuts off before the
gage reads
E
It takes more (or less) gas to fill the tank than the
gage said. For example, the gage read
8 GALLONS
(30 L), but it took more (or less) than the tank’s
remaining capacity to fill it.
speed up.
The gage may change when you turn, stop or
2-77

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
2-84

Downloaded from www.Manualslib.com manuals search engine . 3.
Air Conditioning
.On hot days, open the windows long enough to let hot
inside
air escape. This reduces the time it takes for your
vehicle to cool down. Then keep your windows closed
for the
air conditioner to work its best. I ,
With the digital cluster climate control panel, press the
AUTOLECON button to assist 'in cooling air and in
maintaining proper airflow. Adjust the temperature to a
comfortable setting by pressing the blue,button to cool
your vehicle and pressing the red button to warm your
vehicle. Press the fan button
arrows up or down to
,adjust the fan speed.
If your vehicle has a climate control panel (which is
standard with the analog cluster), press the AC button
or
the TEMPLAUTO knob to turn the system on. The
system'will cool and dehumidify the
air inside the
vehicle. Also while in the AUTO mode, the system will
use recirculation as necessary
to cool the air. You may
also need to adjust- the interior temperature and the fan
speed as needed.
When'the
air conditioner is on, you may sometimes
notice slight changes
in your vehicle's engine speed
and power. This is normal because the system is
designed to cycle the compressor
on and off to keep
the desiied temperature.
Heating
With the digital cluster climate control panel, press the
AUTOECON button to direct airflow and to help save
fuel. Adjust the temperature, if necessary, by pressing
the blue button to decrease temperature and pressing the
red button to increase temperature.
Also remember to
adjust the fan speed by pressing the up or downarrow.
If your vehicle has a climate control panel (which is
standard with the analog cluster), press the
MODE
button to select heater. Adjust the interior temperature to a comfortable level and if the fan speed needs adjusting,
press the up
or down arrow.
With each system, outside
air will be brought in and sent
through the floor, air conditioning or bi-level outlets
(depending on the condition). The heater works best
if
you keep your windows closed whiIe using it.
3-10 1 _--- -

Downloaded from www.Manualslib.com manuals search engine 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 a while.
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.
Loading Your Vehicle
OCCUPANTS
VEHICLE CAP. WT.
TIRE-LOADING
INFORMATION
FRT. CTR.
RR. TOTAL LBS. KG
MAX. LOADING
& GVWR SAME AS VEHICLE
CAPACITY WEIGHT XXX COLD TIRE
TIRE SIZE SPEED PRESSURE
RTG PSI/KPa
FRT.
RR.
SPA.
IF TIRES ARE HOT, ADD 4PS1/28KPa
SEE OWNER'S MANUAL FOR ADDITIONAL
, INFORMATION
Two labels on your vehicle show how much weight it
may properly carry. The Tire-Loading Information label
found
on the driver's door tells you the proper size,
speed rating and recommended inflation pressures for
the tires on your vehicle. It also gives you important
information about the number of people that can be in
your vehicle and the total weight that you can carry.
This weight is called the Vehicle Capacity Weight and
includes the weight
of all occupants, cargo and all
options not installed
in the factory.
4-29

Downloaded from www.Manualslib.com manuals search engine MFDBYGENERALMOTORSCORP DATE
GVWR GAWR FRT GAWR RR
THIS VEHICLE CONFORMS TO ALL APPLI-
CABLE U.S. FEDERAL MOTOR VEHICLE
SAFETY, BUMPER, AND THEFT PREV.ENTlON
STANDARDS
IN EFFECT ON THE DATE OF
MANUFACTURE SHOWN ABOVE.
The other label is the Certification label, found on the
rear edge of the driver’s door. It tells you the gross
weight capacity of your vehicle, called the GVWR
(Gross Vehicle Weight Rating). The
GVWR includes the
weight
of the vehicle, all occupants, fuel and cargo.
Never exceed the GVWR for your vehicle or the Gross
Axle Weight Rating (GAWR) for either the front or
rear axle.
If you do have
a heavy load, you should spread it out.
Don’t
carry more than 203 lbs. (92 kg) in the trunk.
I A CAUTION:
Do not load your vehicle any heavier than the
GVWR, or either the maximum front or rear
GAWR.
If you do, parts on your vehicle can
break, or it can change the
way your vehicle
handles. These could cause you to lose control.
Also, overloading can shorten the life
of
your vehicle.
I NOTICE:
Your warranty does not cover parts or
components
that fail because of overloading.
If you put things inside your vehicle
-- like suitcases,
tools, packages or anything else
-- they will go as fast as
the vehicle goes. If you have to stop
or turn quickly, or
if there is
a crash, they’ll keep going.
4-30

Downloaded from www.Manualslib.com manuals search engine Your vehicle can tow a trailer if it is equipped with the
proper trailer towing equipment. To identify what the
vehicle trailering capacity is for your vehicle, you
should read the information in “Weight of the Trailer”
that appears later in this section. But trailering is
different than just driving your vehicle by itself.
Trailering means changes in handling, durability and
fuel economy. Successful, safe trailering takes correct
equipment, and it has to be used properly.
That’s the reason for this part. In it are many
time-tested, ,important trailering tips and safety rules.
Many
of these are important for your safety and that of
your passengers.
So please read this section carefully
before you pull a trailer.
Load-pulling components such as the engine, transaxle,
wheel assemblies and tires
are forced to work harder
against the drag
of the added weight. The engine is
required to operate at relatively higher speeds and under
greater loads, generating extra heat. What’s more, the
trailer adds considerably to wind resistance, increasing
the pulling requirements.
If You Do Decide To Pull A Trailer
If you do, here are some important points:
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There are many different laws, including speed limit
restrictions, having
to do with trailering. Make sure
your rig
will be legal, not only where you live but
also where you’ll be driving.
A good source for this
information can be state or provincial police.
Consider using a sway control if your trailer will
weigh
2,000 lbs. (900 kg) or less. You should always
use a sway control if your trailer will weigh more
than
2,000 lbs. (900 kg). You can ask a hitch dealer
about sway controls.
Don’t tow
a trailer at all during the first 1,000 miles
(1 600 km) your new vehicle is driven. Your engine,
axle or other parts could be damaged.
Then, during the first
500 miles (800 km) that you
tow a trailer, don’t drive over
50 mph (80 km/h) and
don’t make starts at full throttle. This helps your
engine and other parts of your vehicle wear in at the
heavier
loads.
Obey speed limit restrictions when towing a trailer.
Don’t drive faster than the maximum posted speed
for trailers (or no more than
55 mph (90 km/h)) to
save wear on your vehicle’s parts.
4-32

Downloaded from www.Manualslib.com manuals search engine &&* -%%-,
Section 6 Service and Appearance Care
Here you will find information about the care of your vehicle. This section begins with service and fuel informa\
tion,
and then it shows how to check important fluid and lubricant levels. There is also techn\
ical information about your
vehicle, and a part devoted to its appearance care.
6-2
6-3
6-5 6-5
6-8
6-8
6-11
6-15
6-18
6-22
6-26
6-28
6-3 1
6-32
6-3
8
6-3 8
Service
Fuel
Fuels in Foreign Countries Filling Your Tank
Filling a Portable Fuel Container
Checking Things Under the Hood
Engine Oil
Air Cleaner
Automatic Transaxle Fluid
Engine Coolant
Windshield Washer Fluid
Brakes
Battery
Bulb Replacement
Windshield Wiper Blade Replacement Headlamp Aiming 6-4
1
6-49
6-49
6-52
6-54
6-55
6-55
6-56
6-57 6-57
6-66
6-66
6-67
6-67 Tires
Appearance Care
Cleaning the Inside of Your Vehicle
Cleaning the Outside
of Your Vehicle
Cleaning Aluminum or Chrome Wheels
(If Equipped)
Underbody Maintenance
Chemical Paint Spotting
Appearance Care Materials Chart
Vehicle Identification Number (VIN)
Electrical System Replacement Bulbs
Capacities and Specifications
Air Conditioning Refrigerants
Normal Maintenance Replacement
Parts