1998 CADILLAC DEVILLE overheating

Downloaded from www.Manualslib.com manuals search engine FIRST (1): This position gives you even more power
than
SECOND (2). You can use it on very steep hills,
or
in deep snow or mud. (If the shft lever is put in
FIRST (l), the transaxle won’t shift into gear until the
vehicle is going slowly enough.)
I 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 cause overheating and damage
the transaxle.
Use your brakes to hold your
vehicle in position on a hill.
Parking Brake
Hold the regular brake
pedal down with your right
foot and push down the
parking brake pedal with
your left foot to set the
parking brake. If the
ignition is on, the PARK
BRAKE indicator light
should come on.
If it
doesn’t, you need to have
your vehicle serviced.
If the parking brake has not been fully released and you
try to drive off with the parking brake on, the PARK
BRAKE indicator light comes on and stays on. See “Parking Brake Indicator Light” in the Index for
more information.
When you move out of PARK
(P) or NEUTRAL (N),
if the engine is running, the parking brake should
release. If it doesn’t, you can manually release the
parking brake.
2-26

Downloaded from www.Manualslib.com manuals search engine Traction Control System Warning Light
This warning light should
come on briefly as you start
the engine.
If the warning
light doesn’t come on then,
ready to warn you if there’s TRACT^ 0 N
CONTROL have it fixed so it will be
I’ a problem.
i If it stays on, or comes on when you’re driving, there
i may be a problem with your traction control system and
your vehicle may need service. When this warning light is on, the system will not
limit wheel spin. Adjust your
driving accordingly.
The traction control system warning light may come on
for the following reasons:
1 If there’s a brake system problem that is specifically
related to traction control, the traction control system
will
turn off and the warning light will come on.
I 1 0 ‘If the traction control system is affected by an
engine-related problem, the system will turn
off and
the warning light will come on.
If the traction control system warning light comes on
and
stays on for an extended period of time when the
system
is turned on, your vehicle needs service.
Engine Coolant Temperature Warning Light
This light tells you that your
engine has overheated. You
should stop your vehicle
’ ‘3
and.turn the engine off as
soon as’possible.
A warning
chime should
also sound if
this light comes on.
As a check,
the light should come on for a few seconds
when you start your engine.
Ih the section “Problems on
the Road,” this manual explains what to do. See “Engine
Overheating”
in the Index.

Downloaded from www.Manualslib.com manuals search engine Engine Coolant Temperature Gage
Analog Cluster
This gage shows the
engine coolant
temperature. If the gage
pointer moves into the red area, the engine is too hot.
That reading means the same thing as the warning
light
-- the engine coolant
has overheated.
In the
section “Problems on the
Road,” this manual
explains what to do. See
“Engine Overheating” in
the Index.
Malfunction Indicator Lamp
(Service Engine Soon Light)
Your vehicle is equipped
with a computer which
monitors operation
of the
fuel, ignition and emission
control systems. SERVICE
ENGINE
SOON
This system is called OBD II (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.
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Downloaded from www.Manualslib.com manuals search engine down or the message is removed. If it does not cool
down, turn
off the engine and have it serviced before
driving it again. Severe engine damage can result from
an overheated engine. See “Engine Overheating”
in
the Index.
ENGINE HOT - NC OFF - 16: This message displays
when the engine coolant becomes hotter than the normal
operating temperature.
To avoid added strain on a hot
engine, the
air conditioning compressor is automatically
turned
off so that air conditioned air is not delivered. If
the coolant temperature returns to normal, you must
select AC to return
to a normal A/C compressor
operation. If this message continues to appear, have
the system repaired as soon as possible to avoid
compressor damage.
ENGINE MISFIRE, EASE OFF GAS PEDAL - 114:
An engine misfire has occurred. You’ll need to ease off
the gas pedal.
ENGINE OVERHEATED, STOP ENGINE - 42: This
message
will appear when the engine has overheated.
Stop and turn the engine
off immediately to avoid severe
engine damage. See “Engine Overheating” in the Index.
A multiple chime will also sound when this message
is displayed.
ENGINE POWER REDUCED - 41: This message
informs the driver that their vehicle is reducing engine
power because the transaxle is being placed in gear
under conditions that may cause damage to the vehicle
powertrain or vehicle acceleration.
FUEL LEVEL LOW - 11: This message serves as a
warning that the fuel level in the tank
is critically low.
Stop for fuel soon.
HEADLAMPS SUGGESTED - 23: If it’s dark enough
outside and the twilight sentinel control is
off, a
HEADLAMPS SUGGESTED message will display on
the Driver Information Center (DIC). This message
informs the driver that turning on the exterior lamps is
recommended even though the Daytime Running
Lamps (Dm) are still illuminated. It’s become dark
enough outside to require the headlamps andQr
exterior lamps.
ICE POSSIBLE - 13: This message appears when
the outside air temperature is cold enough to create icy
road conditions.

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 Section 5 Probler--. on the R -lad
Here you’ll find what to do about some problems that can occur on the road.
5-2 Hazard Warning Flashers
5-3 Other Warning Devices
5-3 Jump Starting
5-8 Towing Your Vehicle
5- 15 Engine Overheating
5-24
5-24
5-34
5-35
If a Tire Goes Flat
Changing a Flat Tire
Compact Spare Tire
If You’re Stuck: In Sand, Mud, Ice or Snow
5-1

Downloaded from www.Manualslib.com manuals search engine Engine Overheating
You will find an ENGINE COOLANT HOT, IDLE
ENGINE message or an ENGINE
OVERHEATED
STOP, ENGINE message on the Driver Information
Center (DIC). You will
also hear a chime. There is also
an engine temperature warning light andor gage on the
instrument panel. See “Engine Coolant Temperature
Warning Light” or “Engine Coolant Temperature Gage”
in the Index.
Overheated Engine Protection
Operating Mode
NOTICE:
After driving in the overheated engine protection
operating mode, to avoid engine damage, allow
the engine to cool before attempting any repair.
The engine oil will be severely degraded. Repair
the cause of coolant loss, change the oil and reset
the oil life indicator. See “Engine Oil, When to
Change” in the Index.
Should an overheated engine condition exist and the
message ENGINE OVERHEATED STOP ENGINE is
displayed, an overheat protection mode which alternates
firing groups
of four cylinders helps prevent engine
damage.
In this mode, you will notice a loss in power
and engine performance. This operating mode allows
your vehicle to be driven to a safe place in
an
emergency; you may drive up to 50 miles (80 lun).
Towing a trailer in the overheat protection mode should
be avoided.
5-15