1997 CADILLAC DEVILLE engine overheat

Downloaded from www.Manualslib.com manuals search engine NOTICE:
When the compact spare is installed, don’t take
your vehicle through an automatic
car wash with
guide rails. The compact spare can get caught on
the rails. That can damage the tire and wheel,
and maybe other parts
of your vehicle.
Don’t use your compact spare on other vehicles.
And don’t
mix your compact spare tire or wheel with
other wheels
or tires. They won’t fit. Keep your spare
tire and its wheel together.
NOTICE:
Tire chains won’t fit your compact spare. Using
them can damage your vehicle and can damage
the chains too. Don’t use tire chains on your
compact spare.
If You’re Stuck: In Sand, Mud,
Ice
or Snow
What you don’t want to do when your vehicle is stuck is
to spin your wheels too fast. The method known as
“rocking” can help you get out when you’re stuck, but
you must use caution.
If you let your tires spin at high speed, they can
explode, and you or others could be injured. And,
the transaxle or other parts
of the vehicle can
overheat. That could cause an engine
compartment fire or other damage. When you’re
stuck, spin the wheels as little as possible. Don’t
spin the wheels above
35 mph (55 kmh) as shown
on the speedometer.

Downloaded from www.Manualslib.com manuals search engine How to Reset Transaxle Fluid
Change Indicator
Your vehicle is equipped with a transaxle fluid change
indicator.
A CHANGE TRANS FLUID message will
display
on the Driver Information Center (DIC) when
the powertrain computer determines
that the transaxle
fluid needs to be changed or at each
100,000 miles
(160 000 km) interval, whichever occurs first. When
this message appears, change the transaxle fluid and
reset
the transaxle fluid life indicator as follows:
1. Turn the ignition on but do not start the engine.
2. Press and hold the OFF and rear defog buttons on the
climate control at the same time until the
TRANS
FLUID RESET message appears on the DIC.
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.
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.
J
A 50/50 mixture of water and DEX-COOL@
coolant will:
Give freezing protection down to -34°F (-37°C).
Give boiling protection up to 265 “F (129°C).
Protect against rust and corrosion.
Help keep the proper engine temperature.
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.

Downloaded from www.Manualslib.com manuals search engine What to Use
Use a mixture of one-half clean water (preferably
distilled) and one-half
DEX-COOL@ coolant which
won’t damage aluminum
parts. If you use this mixture,
you don’t need to add anything else.
Adding only plain water to your cooling system
can be dangerous. Plain water, or some other
liquid like alcohol, can boil before the proper coolant
mix will. Your vehicle’s coolant warning
system is set for the proper coolant mix. With
plain water or the wrong mix, your engine could
get too hot but you wouldn’t get the overheat
warning. Your engine could catch fire and you or
others could be burned. Use a
50/50 mix of clean
water and
DEX-COOL@ coolant.
I NOTICE:
If you use an improper coolant mix, your engine
could overheat and be badly damaged. The
repair cost wouldn’t be covered by your
warranty.
Too much water in the mix can freeze
and crack the engine, radiator, heater core and
other parts.
If you have to add coolant more than four times a year,
have your dealer check your cooling system.
I NOTICE:
If you use the proper coolant, you don’t have to
add extra inhibitors or additives which claim to
improve the system. These can be harmful.
6-22

Downloaded from www.Manualslib.com manuals search engine Adding Coolant
If you need more coolant, add the proper DEX-COOL@
coolant mixture at the surge tank, but only when the
engine is cool.
You can be burned if you spill coolant on hot
engine parts. Coolant contains ethylene glycol,
and it
will burn if'the engine parts are hot
enough. Don't spill coolant on
a hot engine.
When replacing the pressure cap, make sure it
is tight.
Surge Tank Pressure Cap
1 NOTICE:
The surge tank cap is a 15 psi (105 kPa)
pressure-type cap and must be tightly installed to
prevent coolant loss and possible engine damage
from overheating. Be sure the arrows on the cap
line up.
If the surge tank pressure cap needs to be replaced, a
General Motors cap
is recommended.
Thermostat
Engine coolant temperature is controlled by a thermostat
in the engine coolant system. The thermostat stops the
flow of coolant through the radiator until the coolant
reaches a preset temperature.
If your thermostat needs to be replaced, a General
Motors thermostat
is recommended.
6-24

Downloaded from www.Manualslib.com manuals search engine Tires
Your new Cadillac comes with high-quality tires made
by a leading tire manufacturer.
If you ever have
questions about your tire warranty and where
to obtain
service, see your Cadillac Warranty booklet
for details.
U
Poorly maintained and improperly used tires
are dangerous.
0 Overloading your tires can cause
, overheating as a result of too much friction.
You could have an air-out and a serious
accident. See “Loading Your Vehicle” in
the Index.
0 Underinflated tires pose the same danger as
overloaded tires. The resulting accident
could cause serious injury. Check all tires
frequently to maintain the recommended pressure. Tire pressure should be checked
when your tires are cold.
CAUTION: (Continued)
0 Overinflated tires are more likely to be
cut, punctured or broken by a sudden
impact
-- such as when you hit a pothole.
Keep tires
at the recommended pressure.
0 Worn, old tires can cause accidents. If your
tread
is badly worn, or if your tires have
been damaged, replace them.
See “Inflation
-- Tire Pressure’’ in this section
speed driving.
’ for inflation pressure adjustment for higher
6-40

Downloaded from www.Manualslib.com manuals search engine Electrical System
Add-on Electrical Equipment
NOTICE:
Don’t add anything electrical to your Cadillac
unless you check with your dealer first. Some
electrical equipment can damage your vehicle
and
the damage wouldn’t be covered by your warranty.
Some add-on electrical equipment can keep other
components
from working as they should.
Your vehicle has an air bag system. Before attempting to
add anything electrical to your Cadillac, see “Servicing
Your Air Bag-Equipped Cadillac” in the Index.
Headlamp Wiring
The headlamp wiring has an individual fuse which is
powered by a MaxiFuse@. An electrical overload will
cause the lamps to
go on and off, or in some cases to
remain off. If this happens, have the headlamp wiring
checked right away.
MaxiFuse
is a registered trademark of Little
Fuse Incorporated.
Windshield Wiper Fuses
The windshield wiper motor is powered by a MaxiFuse.
If
the motor overheats due to heavy snow, etc., the
wipers will stop until the motor cools. If the overload
is caused by some electrical problem, be
sure to have
it fixed.
Power Windows and Other Power Options
Circuit breakers protect the power windows and other
power accessories. When the current load is too heavy,
the circuit breaker opens and closes, protecting the
circuit until the problem is fixed or goes away.
6-59
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Downloaded from www.Manualslib.com manuals search engine Door Central Unlocking System
....................... 2-4
Locks
....................................... 2-4
Map Pockets
................................. 2-59
OpenMessage
............................... 2-91
Driver Door Open Message
....................... 2-91
Driver Information Center
........................ 2-85
Driver Information Center Messages
................ 2-89
Driver Position
................................. 1 - 13
Driver’s Outside Auto-Dimming Rearview Mirror
..... 2-59
Driving City
........................................ 4-21
Defensive
.................................... 4-2
Drunken
..................................... 4-3
InaBlizzard
................................. 4-28
In Foreign Countries ........................... 6-4
IntheRain
.................................. 4-18
Night
...................................... 4-16
OnCurves
.................................. 4-11
On Grades While Towing a Trailer
............... 4-38
On Hill and Mountain Roads
.................... 4-24
On Snow and Ice
............................. 4-27
Throughwater
............................... 4-20
Wet Roads
.................................. 4- 18
Winter ...................................... 4-26
With a Trailer
................................ 4-37
DRL ......................................... 2-46
Drunken Driving
................................ 4-3
Dual Temperature Control
..................... 3.3. 3-7
Freeway
.................................... 4-22
.
ECC ......................................... 3-2
Electrical Equipment. Adding
........... 2.23. 3.31. 6-59
Electrical Svstem
............................... 6-59 .... -J
Electrochromic Daymight Rearview Mirror ..... 2.54, 2.55
Electronic Climate Control ........................ 3-2
Electronic Level Control
......................... 4-32
Electronic Solar Sensor ........................... 3-6
Engine
........................................ 6-9
Compartment Fuse Block
....................... 6-62
Coolant
..................................... 6-21
Coolant Heater
............................... 2-23
Coolant Hot-Idle Engine Message
................ 2-91
Coolant Temperature Gage
..................... 2-79
Coolant Temperature Warning Light
.............. 2-79
Exhaust
..................................... 2-34
Identification
................................ 6-58
Misfire
.. Ease Off Gas Pedal Message ........... 2-91
Overheating
................................. 5-15
Running While Parked
......................... 2-34
StartingYour
................................ 2-22
EngineOil
.................................... 6-10
Adding
..................................... 6-11
Additives ................................... 6-13
Checking
................................... 6-11
Used
....................................... 6-14
What Kind
of Oil to Use ....................... 6-12
Whentochange
.............................. 6-13
Engine Speed Limiter
............................ 2-73
Englishhietric Display
.......................... 2-73
Specifications
................................ 6-69
8-4

Downloaded from www.Manualslib.com manuals search engine Locks ......................................... 2-4
Anti-Lockout Feature
.......................... 2-7
Automatic Door
............................... 2-5
Door
........................................ 2-4
PowerDoor
.................................. 2-5
Programmable Automatic Door
................... 2-5
Rear Door Security
............................. 2-6
Trunk Release
................................ 2- 13
Lumbar Controls ................................ 1-3
Magnasteer
................................ 4- 10
Maintenance. Normal Replacement Parts
............ 6-70
Maintenance. Underbody
......................... 6-56
Maintenance When Trailer Towing
................. 4-39
Malfunction Indicator Lamp
...................... 2-80
Manual Rearview Mirror
......................... 2-53
MapLamps
................................... 2-52
MapPocket
................................... 2-59
Matching Transmitters
To Your Vehicle ............. 2-11
MaxiFusesRelay Center
......................... 6-60
Memory and Personalization Features
............... 2-85
Memory Seat and Mirrors
......................... 1-3
Methanol ...................................... 6-4
Mirrors
Convex Outside
.............................. 2-59
Driver’s Outside Auto-Dimming Rearview
......... 2-59
Electrochromic Daymight Rearview
......... 2-54. 2-55
Inside Daymight Manual Rearview
.............. 2-53
Memory Seat and Mirrors
....................... 1-3
Power Remote Control
......................... 2-58
Visorvanity
................................. 2-62 MMT
......................................... 6-3
Model Reference
11
MountainRoads ................................ 4-24
Multifunction Lever
............................. 2-37
.. ..................................
Monitored Systems OK Message ................... 2-91
Net. Convenience
.............................. 2-60
Neutral. Automatic Transaxle ..................... 2-26
New Vehicle “Break-In”
......................... 2-20
Nightvision
................................... 4-17
odometer .................................... 2-72
Odometer. Trip
................................. 2-72
Off-Road Recovery
............................. 4-13
Oil. Engine
.................................... 6-10
Oil Life Indicator ............................... 2-96
Oil Life Indicator. How to Reset
................... 6-14
Oil Pressure Light
.............................. 2-82
OnStar System
................................. 2-63
Overdrive. Automatic Transaxle
................... 2-27
Overheated Engine Protection Operating Mode
....... 5-15
Overheating Engine ............................. 5-15
Owner Publications. Ordering
................ 7- 13. 7- 14
Paint Spotting. Chemical
........................ 6-56
ParadeDimming
............................... 2-51
PARK (P)
Automatic Transaxle
.......................... 2-25
Shifting Into
................................. 2-30
Shifting Out of ............................... 2-33
8-7