overheating CADILLAC SEVILLE 1998 4.G Owners Manual

Downloaded from www.Manualslib.com manuals search engine Here are examples for using THIRD (3) instead of
OVERDRIVE
(a):
When driving on hilly, winding roads.
When going down a steep hill.
SECOND
(2): This position gives you more power. You
can use SECOND
(2) on hills. It can help control your
speed as you
go down steep mountain roads, but then
you would also want to use your brakes
off and on.
NOTICE:
Don’t shift into SECOND (2) unless you are going
slower than
65 mph (105 km/h), or you can
damage your engine.
1S4’ Ti): 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 shift lever is put in
FIRST (l), the transaxle won’t shift into gear until the
vehicle is going slowly enough.)
1 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.
2-24

Downloaded from www.Manualslib.com manuals search engine 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 the
engine has overheated. You
should stop the car 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. In the section
“Problems on the Road,” this manual explains what to
do. See “Engine Overheating” in the Index.
Engine Coolant Temperature Gage
United States
- c.w IF -TEMP
Canada
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.
2-69

Downloaded from www.Manualslib.com manuals search engine CHECK FUEL GAGE - 50: This message will appear
when the fuel supply is less than
5 gallons (1 8.9 L) and
the display is turned off.
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
a few
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 to indicate that you need washer solvent.
DRIVER DOOR A JAR - 140: This message will
display anytime the key is in
ON and your driver’s door
is open or ajar.
A chime will also sound when the
vehicle’s speed is greater than
3 mph (4.8 km/h).
DRIVER NO. X (1 OR 2) : This message will appear
when the remote keyless entry is used. The message will
show which driver is activating the personalization
feature. It will only stay on for five seconds.
This message will appear when the engine coolant temperature is over
262 OF ( 128 O C). Stop and allow your
vehicle to idle in
PARK (P) until it cools down and the
message is removed.
Do not increase engine speed
above a normal idle.
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-A/C 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. When the coolant temperature returns to
normal, the
A/C operation will automatically resume.
You can continue to drive your vehicle.
If this message
continues to appear, have the system repaired as soon as
possible to avoid compressor damage.
ENGINE COOLANT HOT IDLE ENGINE - 44:
2-84

Downloaded from www.Manualslib.com manuals search engine ENGINE MISFIRE -- EASE OFF GAS
PEDAL
- 114: An engine misfire has occurred. You’ll
need to ease
off the gas pedal.
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 disp1ay.d.
ENGINE POWER REDUCED - 41: This message
informs you that the vehicle is reducing engine power
because the transaxle is being placed in gear under
conditions that may cause damage to the vehicle’s
engine, transaxle or ability to accelerate.
FUEL LEVEL LOW - 11: This message serves as a
warning that the fuel level in the tank is critically low.
Stop for fuel soon.
A single chime will also sound when
this message is displayed.
HEADLAMPS SUGGESTED - 23: If it’s dark enough
outside and the headlamps and twilight sentinel control are
off, a HEADLAMPS SUGGESTED message will display
on the
DIC. This message informs the driver that turning on
the exterior lamps is recommended even though the
DRL are
still illuminated. It has become dark enough outside to
require the headlamps and/or other exterior lamps.
This
message will also appear if the optional rainsense wiping
feature is on and the twilight sentinel is
off.
ENGINE OVERHEATED STOP ENGINE - 42: This
ICE POSSIBLE - 13: This message appears when
the outside air temperature is cold enough to create icy
road conditions.
LEFT REAR DOOR A JAR - 142: The left rear door
is open or ajar when this message appears. The ignition
must be
in the ON position for this message to display.
A chime will also sound when the vehicle’s speed is
greater than
3 mph (4.8 kmh).
OIL PRESSURE LOW STOP ENGINE - 35: If this
message appears while the engine is running, stop the
engine and do not operate it until the cause of low oil
pressure is corrected. Severe damage to the engine can
result.
A multiple chime will also sound when this
message is displayed.
PASSENGER DOOR AJAR - 141: The passenger’s
door
or rear doors are open or ajar when this message
appears. The ignition must be in the
ON position for this
message to display.
A chime will also sound when the
vehicle’s speed
is greater than 3 mph (4.8 km/h).

Downloaded from www.Manualslib.com manuals search engine Turn Signals When Towing a Trailer
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 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.
Driving On Grades
Reduce speed and shift to a lower gear before you start
down a long or steep downgrade. If you don’t shift
down, you might have to use your brakes
so much that
they would get hot and no longer work well.
On long uphill grades, reduce speed to 45 to 50 mph
(70 to 90 km/h) and avoid prolonged use of
SECOND (2) gear and engine speeds above 3800 rpm. Climbing grades steeper than 4 degrees at temperatures
above
90°F (32 “C)
with a loaded vehicle and trailer is
not recommended. The cooling system may temporarily
overheat. See “Engine Overheating” in the Index.
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. Apply your regular brakes, but do not shift into
PARK (P).
2. Have someone place chocks under the trailer wheels.
3. When the wheel chocks are in place, release the
regular brakes until the chocks absorb the load.
4. Reapply the regular brakes. Then shift into
PARK (P) firmly and apply your parking brake.
5. Release the regular brakes.
4-37

Downloaded from www.Manualslib.com manuals search engine When You Are Ready to Leave After
Parking on a Hill
1. Apply your regular brakes and hold the pedal down
while you:
0 Start your engine;
0 Shift into a gear; and
0 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 someone 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 this information 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.
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Downloaded from www.Manualslib.com manuals search engine ,*a- -a
Section 5 Problems on the Road
Here you’ll find what to do about some problems that can occur on the road.
5-2
5-3
5-3
5-8
5- 15
Hazard Warning Flashers Other Warning Devices
Jump Starting
Towing Your Vehicle
Engine Overheating 5-24 If a Tire Goes Flat
5-24 Changing a Flat Tire
5-35 Compact Spare Tire
5-36 If You’re Stuck: In Sand, Mud, Ice or Snow

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). There is also an engine temperature
warning light and/or 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 (SO km).
Towing a trailer in
the overheat protection mode should
be avoided.
5-15

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 filed before you drive the vehicle.
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.
5-19

Downloaded from www.Manualslib.com manuals search engine How to Reset tk I ’I’ - ~- -- 3 Change
Indicator
After the transaxle fluid has been changed, display the
TRANS FLUID LIFE message by pressing the
INFO
button. Then press and hold the INFO RESET button
until the display shows
“loo.” This resets the transaxle
fluid life index. The message will remain off until the next transaxle fluid change is needed. The percentage
of
transaxle fluid life remaining may be checked at any
time by pressing the
INFO button several times until the
TRANS FLUID LIFE message appears.
Engine Coolant
The cooling s stem in your vehicle is filled with
DEX-COOL engine coolant. This coolant is designed
to remain in your vehicle for 5 years or 150,000 miles
(240 000 km) whichever occurs first, if you add only
DEX-COOL’ extended life coolant.
B
The following explains your cooling system and how to
add coolant when it is low.
If you have a problem with
engine overheating, see “Engine Overheating” in
the Index.
A 50/50 mixture of water and DEX-COOL@
coolant will:
0 Give freezing protection down to -34°F (-37°C).
0 Give boiling protection up to 265°F (129°C).
Protect against rust and corrosion.
Help keep the proper engine temperature.
0 Let the warning lights and gages work as
they should.
NOTICE:
When adding coolant, it is important that you use
only
DEX-COOL@ (silicate-free) coolant.
If coolant other than DEX-COOL is added to the
system, premature engine, heater core or
radiator corrosion may result. In addition, the
engine coolant will require change sooner
-- at
30,000 miles (50 000 km) or 24 months,
whichever occurs first. Damage caused
by the use
of coolant other than DEX-COOL@ is not
covered
by your new vehicle warranty.
6-22