1998 CADILLAC DEVILLE Coolant system

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.
I
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 mixture will. Your vehicle’s coolant
warning system
is set for the proper coolant
mixture. With plain water or the wrong mixture,
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 mixture of clean water and
DEX-COOL@ coolant.
NOTICE:
If you use an improper coolant mixture, your
engine could overheat and be badly damaged.
The repair cost wouldn’t be covered by your
warranty.
Too much water in the mixture 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.
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.
6-23

Downloaded from www.Manualslib.com manuals search engine Checking Coolant
L
The surge tank is located next to the engine block on the
passenger's side of the engine.
The cooling system is under a lot of pressure when it is
hot.
If the CHECK COOLANT LEVEL message
appears on the Driver Information Center (DIC), you
will need to add coolant.
l'brning the surge tank pressure cap when the
engine and radiator are hot can allow steam and
scalding liquids to blow
out and burn you badly.
Never turn
the surge tank pressure cap -- even a
little
-- when the engine and radiator are hot.
When your engine is cold, the coolant level should be
at the
FULL COLD mark, which is 2.5 inches (6.4 cm)
below the base
of the fill neck. Use a flashlight as
necessary to
see into the tank.
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If the CHECK COOLANT LEVEL message comes on,
it means you're low on engine coolant.
For more information, see "Check Coolant Level"
message in the Index.

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.
r-
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.
Surge Tank Pressure Cap
I 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
GM cap is recommended.
Thermostat When replacing the pressure cap, make sure it is tight.
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 GM
thermostat is recommended.
6-25

Downloaded from www.Manualslib.com manuals search engine Power Steering Fluid
The power steering fluid
reservoir is located next to
the coolant surge.tank on
the passenger’s side of
the engine.
When to Check Power Steering Fluid
It is not necessary to regularly check power steering
fluid unless you suspect there is a leak in the system or
you hear an unusual noise. A fluid loss in this system
could indicate a problem. Have the system inspected
and repaired.
How To Check Power Steering Fluid
When the engine compartment is cool, wipe the cap
and the top
of the reservoir clean, then unscrew the cap
and wipe the dipstick with a clean rag. Replace the cap
and completely tighten it. Then remove the cap again
and look at the fluid level on the dipstick.
The level should be at the
FULL COLD mark. If
necessary, add only enough fluid to bring the level up
to the mark.
What to Use
To determine what kind of fluid to use, see
“Recommended Fluids and Lubricants” in the
Maintenance Schedule booklet. Always use the
proper fluid. Failure to use the proper fluid can cause
leaks and damage hoses and seals.
Windshield Washer Fluid
What to Use
When you need windshield washer fluid, be sure to read
the manufacturer’s instructions before use.
If you will be
operating your vehicle in an area where the temperature
may fall below freezing, use a fluid that has sufficient
protection against freezing.
6-26
I

Downloaded from www.Manualslib.com manuals search engine Adding Washer Fluid
NOTICE:
I
The windshield washer fluid reservoir is located next to
the air cleaner on the driver's side of the engine.
Open the cap labeled
WASHER FLUID ONLY. Add
washer fluid until the tank is full.
0
0
0
0
When using concentrated washer fluid,
follow the manufacturer's instructions for
adding
water.
Don't mix water with ready-to-use washer
fluid. Water can cause the solution to freeze
and damage your washer fluid tank and
other parts of the washer system. Also,
water doesn't clean
as well as washer fluid.
Fill your washer fluid tank only
three-quarters full when
it's very cold. This
allows for expansion if freezing occurs,
which could damage the tank
if it is
completely full.
Don't use engine coolant (antifreeze) in
your windshield washer.
It can damage
your washer system and paint.
6-27

Downloaded from www.Manualslib.com manuals search engine Battery ...................................... 6.3 1
Jump Starting
................................. 5-3
Not Charging Message
......................... 2-82
Volts High Message
........................... 2-83
Volts Low Message
........................... 2-83
Warnings
................................ 5-3. 5-5
Battery Saver ............................. 2-46. 2-48
Exterior Lighting
............................. 2-46
Inadvertent Power
............................ 2-48
BBB Auto Line
................................ 7- 11
Better Business Bureau Mediation
.................. 7- 11
Blizzard
...................................... 4-27
Brake Replacement. Remote Keyless Entry
............... 2-9
Adjustment
.................................. 6-30
Fluid
....................................... 6-28
Master Cylinder
.............................. 6-28
Parking ..................................... 2-26
PedalTravel
................................. 6-30
Replacing System Parts
........................ 6-3 1
System Warning Light
......................... 2-69
Trailer
...................................... 4-35
Transaxle Shift Interlock
....................... 2-31
Wear
....................................... 6-30
Brake Vacuum Problem Message
.................. 2-83
Brakes. Anti-Lock
............................... 4-7
Braking ........................................ 4-6
Braking in Emergencies .......................... 4- 10
Break-In. New Vehicle .......................... 2-18 Brightness Control
.............................. 2-46
Bulb Replacement
.............................. 6-32
BTSI
......................................... 2-31
Capacities and Specifications
.................... 6-66
Carbon Monoxide
.................... 2.32.4.28. 4.35
Cassette Tape Player
.................. 3.16.3.19. 3.28
Cassette Tape Player Care
........................ 3-39
Cellular Telephone
.............................. 2-56
Center Console Storage Area
...................... 2-54
Center Passenger Position
........................ 1-29
Central Door Unlocking System
.................... 2-5
Chains. Safety
................................. 4-35
Change Engine Oil Message
...................... 2-83
Change Trans Fluid Message
...................... 2-83
Changing a Flat Tire
............................. 5-24
Charging System Indicator Light
................... 2-69
Check Brake Fluid Level Message
................. 2-83
Check Coolant Level Message
..................... 2-84
Check Fuel Gage Message
........................ 2-84
Check Gas Cap Message
......................... 2-84
Check Oil Level Message
........................ 2-84
Check Washer Fluid Message
..................... 2-84
Checking Your Restraint Systems
.................. 1-53
Chemical Paint Spotting
.......................... 6-55
Cassette Tape Player Errors
............. 3.16.3.20.
3-28
Center High-Mounted Stoplamp Bulb Replacement
.... 6-35
Certification Label
.............................. 4-30
Chains. Tire
................................... 6-48
8-2

Downloaded from www.Manualslib.com manuals search engine Child Restraints ................................ 1-37
Securing
in a Rear Outside Seat Position ........... 1-43
Securing in the Center Rear Seat Position
.......... 1-45
Securing in the Right Front Seat Position
.......... 1-47
TopStrap
................................... 1-42
WheretoPut
................................ 1-41
CHMSL
...................................... 6-35
Chrome Wheels. Cleaning
......................... 6-54
Circuit Breakers and Fuses
....................... 6-60
Cleaner.
Air ................................... 6-15
Cleaning Aluminum or Chrome Wheels
................... 6-54
Fabric
...................................... 6-50
Glass
....................................... 6-52
Inside
of Your Vehicle ......................... 6-49
Instrument Panel
............................... 6-5 1
Leather ..................................... 6-51
Outside
of Your Vehicle ........................ 6-52
Speakercovers
.............................. 6-51
Special Problems
............................. 6-50
Stains
................................. 6-50, 6-51
Tires
....................................... 6-54
Vinyl
....................................... 6-50
Wheels
..................................... 6-54
Windshield and Wiper Blades
................... 6-52
WoodPanels ................................. 6-51
Climate Control Personalization
................... 3 - 13
Climate Control. Steering Wheel Touch Control
....... 3- 13
Cigarette Lighter
... 2-55 ...............................
Climate Control System ........................... 3-2
Clock. Setting the
............................... 3-14-
Coinholder
.................................. .. . 2-54
Comfort Controls
................................. 3-2
Compact Disc Care
............................. 3-40
Compact Disc Player
....................... I 3-21. 3-29
Compact Disc Player Errors
.................. 3-21, 3-30
Compact Spare Tire
........................ 5-25, 5-34
Compass. Rearview Mirror with
................... 2-49
Console Shift Lever
............................. 2-29
Continuous Variable
- Road Sensing Suspension ...... 2-95
Control of a Vehicle
.............................. 4-6
Convenience Net
............................... 2-55
Convex gutside Mirror
.......................... 2-53
Heater. Engine
............................... 2-21
Surge
Tank .................................. 5-20
Cooling System ................................ 5-18
Cornering Lamps
............................... 2-44
Courtesy Lamps ................................ 2-46
Cruise Control'
................................. 2-39
Cruise Engaged Message
......................... 2-84
Cupholders
............................... 2-54. 2-55
Curb View Assist Mirror
......................... 2-53
Customer Assistance for Text Telephone Users
......... 7-4
Customer Assistance Information
................... 7-1
Customer Satisfaction Procedure
.................... 7-2
CV-RSS
...................................... 2-95
Coolant
.................................. 6-22. 6-24
--

Downloaded from www.Manualslib.com manuals search engine Damage. Finish ............................... 6-55
Damage. Sheet Metal
............................ 6-54
Daytime Running Lamps
......................... 2-43
Dead Battery
................................... 5-3
Defects. Reporting Safety
................... 7-12. 7-13
Defensive Driving
............................... 4-2
Defogger. Rear Window
......................... 3- 12
Defogging
.................................... 3- 12
Defrosting
.................................... 3- 12
DIC
.......................................... 2-79
Digital Cluster Climate Control Panel
................ 3-2
Digital Control Buttons
.......................... 2-79
Dolby B Noise Reduction
................... 3- 17. 3-21
Central Unlocking System
....................... 2-5
MapPocket
................................. 2-54
OpenMessage
............................... 2-84
Driver Door Open Message
....................... 2-84
Driver Information Center
......................... 2-79
Driver Information Center Messages
................ 2-82
Driver Position
................................. 1 - 11
Driver’s Outside Auto-Dimming Rearview Mirror
..... 2-52
Driving Dimensions. Vehicle
............................. 6-66
Door Locks
....................................... 2-4
City
........................................ 4-20
Defensive
.................................... 4-2
Drunken
..................................... 4- 3
Freeway
.................................... 4-21
InaBlizzard
................................. 4-27 In Foreign Countries
........................... 6-5
IntheRain
.................................. 4-17
Night
...................................... 4-15
On Curves
.................................. 4-10
On Grades While Towing a Trailer
............... 4-37
On Hill and Mountain Roads
.................... 4-23
OnSnowandIce
............................. 4-26
Throughwater
............................... 4-19
WetRoads
.................................. 4-17
Winter
...................................... 4-25
With a Trailer
................................ 4-36
DRL
.......................................... 2-43
Drunken Driving
................................ 4-3
Dual Temperature Control
..................... 3-3, 3-6
ECC ......................................... 3-2
Electrical Equipment, Adding
........... 2-21,3-39, 6-57
Electrical System ............................... 6-57
Electrochromic Daymight Rearview Mirror
..... 2-48, 2-49
Electronic Climate Control
........................ 3-2
Electronic Level Control
......................... 4-31
Electronic Solar Sensor
............................ 3-9
Engine
....................................... 6-10
Compartment Fuse Block
....................... 6-61
Coolant
................................ 6-22, 6-24
Coolant Heater
............................... 2-21
Coolant Hot-Idle Engine Message
................ 2-84
Coolant Temperature Gage
..................... 2-73
Coolant Temperature Warning Light
.............. 2-72
Exhaust
................................ 2-32, 4-28