1998 CADILLAC DEVILLE check engine

Downloaded from www.Manualslib.com manuals search engine If you drive regularly in steep country, or if you’re
planning to visit there, here are some tips that
can make
your trips safer and more enjoyable.
0 Keep your vehicle in good shape. Check all fluid
levels and
also the brakes, tires, cooling system
and transaxle. These parts can work hard on
mountain roads.
0 Know how to go down hills. The most important
thing to know is
this: let your engine do some of the
slowing down. Shift to a lower gear when you go
down
a steep or long hill.
If you don’t shift down, your brakes could
get
so hot that they wouldn’t work well. You
would then have poor braking or even none going
down
a hill. You could crash. Shift down to let
your engine assist your brakes on a steep
downhill slope. Coasting downhill
in NEUTRAL (N) or
with the
ignition
off is dangerous. Your brakes will have to
do all the work
of slowing down. They could get so
hot that they wouldn’t work well. You would then
have poor braking or even none going down
a hill.
You could crash. Always have your engine running
and your vehicle in gear when you go downhill.
Know how to go uphill. You may want to shift down 0
0
0
0
to a lower gek The lower gearshelp cool your engine
and transaxle, and you
can climb the hill better.
Stay in your own lane when driving
on two-lane
roads in hills or mountains. Don’t swing wide or cut across the center
of the road. Drive at speeds that let
you stay in your own lane.
As you go over the top of a hill, be alert. There could be
something in your lane, like a stalled
car or an accident.
You
may see highway signs on mountains that warn of
special problems. Examples are long grades, passing or
no-passing zones, a
falling rocks area or winding
roads. Be alert to these
and take appropriate action.
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Downloaded from www.Manualslib.com manuals search engine Tie a red cloth to your vehicle to alert police that
you’ve been stopped by the snow.
Put on extra clothing or wrap a blanket around you.
If you have
no blankets or extra clothing, make body
insulators from newspapers, burlap bags, rags, floor
mats
-- anything you can wrap around yourself or
tuck under your clothing
to keep warm. 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.
4-28

Downloaded from www.Manualslib.com manuals search engine Trailer Wiring Harness
If your vehicle is equipped with the 3,000-lb. (1 360 kg)
trailer towing package option, you will have
a wiring
harness located under the
trunk trim. The harness is a
five-wire harness, with connector.
These trailer-wiring harness color codes should be
followed when connecting it
to your trailer:
WHITE: Direct trailer ground for trailer lamps.
BROWN: Parking lamps.
0 YELLOW Left turn and stoplamps.
GREEN: Right turn and stoplamps.
0 BLUE: Auxiliary circuit.
Driving with a Trailer
Towing a trailer requires a certain amount of experience.
Before setting out for the open road, you’ll want to get
to know your
rig. Acquaint yourself with the feel of
handling and braking with the added weight of the
trailer. And always keep in mind that the vehicle you are driving is now a good deal longer and not nearly as
responsive as your vehicle
is by itself. Before
you start, check the trailer hitch and platform
(and attachments), safety chains, electrical connector,
lamps, tires and mirror adjustment. If the trailer has
electric brakes, start your vehicle
and trailer moving and
then apply the trailer brake controller by hand to be sure
the brakes are working.
This lets you check your
electrical connection at the same time.
During your trip, check occasionally to be sure that the load is secure, and that the lamps and any trailer brakes
are still working.
Following Distance
Stay at least twice as far behind the vehicle ahead as you
would when driving your vehicle without a tr$ler. This
can help you avoid situations that require heavy braking
and sudden turns.
Passing
You’ll need more passing distance up ahead when
you’re towing a trailer. And, because you’re a good deal \
longer, you’ll need to go much farther beyond the
passed vehicle before you can return to your lane.
4-36

Downloaded from www.Manualslib.com manuals search engine Backing Up Tbrn Signals When Towing a Trailer
Hold the bottom of the steering wheel with one hand.
Then, to move the trailer to the left, just move that hand
to the left. To move the trailer to the right, move your
hand to the right. Always back
up slowly and, if
possible, have someone guide you.
Making arris
When you tow a trailer, your vehicle may need a different turn signal flasher and/or extra wiring. Check
with your Cadillac dealer. 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 NOTICE:
Making very sharp turns while trailering could
cause the trailer to come in contact with the
vehicle. Your vehicle could
be damaged. Avoid
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.
making very sharp turns while trailering. Driving On Grades
Reduce speed and shift to a lower gear before you start
When you’re turning with
a trailer, make wider turns down a long or steep downgrade. If you don’t shift
than normal. Do this
so your trailer won’t strike soft down, you might have to use your brakes so much that
shoulders, curbs, road signs, trees
or other objects. they would get hot and no longer work well.
Avoid jerky or sudden maneuvers. Signal well
in advance. On
a long uphill grade, shift down and reduce your
speed to around
45 mph (70 km/h) or less to reduce the
possibility
of engine and transaxle overheating.
4-37

Downloaded from www.Manualslib.com manuals search engine 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.
2.
3.
4.
5.
Apply your regular brakes, but do not shift into
PARK (P).
Have someone place chocks under the trailer wheels.
When the wheel chocks are in place, release the
regular brakes until the chocks absorb the load. Reapply the regular brakes. Then shift into
PARK
(P) firmly and apply your parking brakes.
Release the regular brakes.
When You Are Ready to Leave After
Parking
on a Hill
1. Apply your regular brakes and hold the pedal down
while you:
Start your engine;
Shift into a gear; and
Be sure the parking brake has released.
2. Let up on the brake pedal.
3. Drive slowly until the trailer is clear of the chocks.
4. Stop and have s‘6~1&@kt pick up and store the chocks.
Maintenance When Trailer Towing
Your vehicle will need service more often when you’re
pulling a trailer. See the Maintenance Schedule booklet
for more
on this. Things that are especially important in
trailer operation are automatic transaxle fluid (don’t overfill), engine oil, drive belt, cooling system and brake
adjustment. If you’re trailering, it’s a good idea to
review these sections before you start your trip.
Check periodically to see that all hitch nuts and bolts are tight.
Engine Cooling When Trailer Towing
Your cooling system may temporarily overheat during
severe operating conditions. See “Engine Overheating”
in the Index.
4-38

Downloaded from www.Manualslib.com manuals search engine I NOTICE:
Ignoring these steps could result in costly damage
to your vehicle that wouldn’t be covered
by
your warranty.
Trying to
start your vehicle by pushing or pulling
it won’t work, and it could damage your vehicle.
1. Check the other vehicle. It must have a 12-volt
battery with a negative ground system.
I NOTICE: I
2. 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 vehicle and the bad grounding could
damage the electrical systems.
unnecessary accessories plugged into the cigarette
lighter.
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!
4. Open the hoods and locate the batteries. Find
the positive
(+) and negative (-) terminals on
each battery.
3. Turn off the ignition on both vehicles. Unplug
I
If the other system isn’t a 12-volt system with a
negative ground, both vehicles can be damaged.
A CAUTION:
I I
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

Downloaded from www.Manualslib.com manuals search engine 6. Check that the jumper cables don’t have loose or
missing insulation..
If they do, you could get a shock.
The vehicles could also be damaged.
Before you connect the cables, here are some basic
things you should
know. Positive (+) will go to
positive
(+) and negative (-) will go to an unpainted
metal engine part or a body metal surface.
Don’t
connect positive (+) to negative (-) or you will get
a
short that, would damage the battery and maybe
other parts, too. Also, don’t connect negative
(-)
to negative (-).
4% CAUTION: 1’ - 7. Connect the red. positive (+) cable to the positive (+)
Fans or other moving engine parts can injure you terminal of the vehicle with the dead battery.
badly. Keep your hands away from moving parts
once the engine
is running.
5-6

Downloaded from www.Manualslib.com manuals search engine If it isn’t, the coolant level should be indicated by a
CHECK COOLANT
LEVEL message on the Driver
Information Center. If it is, you may have a leak in the
radiator hoses, heater hoses, radiator, water pump or somewhere else in the cooling system.
Heater and radiator hoses, and other engine
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 fire, and you could be burned.
Get any leak fixed before you drive the vehicle.
I NOTICE:
Engine damage if you keep running your engine
without coolant isn’t covered
by your warranty.
See “Overheated Engine Protection Operating
Mode” in the Index.
If there seems to be no leak, with the engine on, check to
see if the electric engine cooling fans are running. If the
engine is overheating, both fans should be running..
If
they aren’t, your vehicle needs service.
.