cooling CADILLAC SEVILLE 1997 4.G User Guide

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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.
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NOTICE:
In cold weather, water can freeze and crack the
engine, radiator, heater core and other
parts. So
use the recommended coolant.
A CAUTION:
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.
1. You can remove the coolant surge tank pressure cap
when
the cooling system, including the coolant surge
tank pressure cap and upper radiator hose,
is no
longer hot. Turn the pressure cap slowly
counterclockwise until it first stops. (Don't press
down while turning the pressure cap.)
If you hear a hiss, wait for that to stop. A hiss means
there
is still some pressure left.

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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.
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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).
c
F
Give boiling protection up to 265°F (129°C).
0 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.
Use a mixture of one-half cEean wccfer (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.

Downloaded from www.Manualslib.com manuals search engine 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 mis will. Your vehicle’s coolant warning
system is set
for the proper coolant mix. With
phi11 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.
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 cooIant, you don’t have to
add extra inhibitors or additives which claim to
improve the system. These can be harmful.
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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 DIC, you will need to add coolant.
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.
........................ ................ ........... .... ..... ................... ...... ............ ............ .......... ...................... ....... .................. .....
...*: .....:
..................................... .....................
If this message comes on. it means you’re low on
engine coolant.

Downloaded from www.Manualslib.com manuals search engine Each new wheel should have the same load-carrying
capacity, diameter, width, offset and be mounted
the
same way as the one it replaces.
If
you need to replace any of your wheels, wheel bolts
or wheel nuts, replace them only with new GM original
equipment parts. This way,
you will be sure to have the
right wheel, wheel bolts and wheel nuts
for your
Cadillac model.
I A CAUTION:
Using the wrong replacement wheels, wheel bolts
or wheel nuts on your vehicle can be dangerous.
It could affect the braking and handling
of your
vehicle, make your tires lose air and make
you
Iose control. You could have a collision in which
you or others could be injured.
Always use the
correct wheel, wheel bolts and wheel nuts for
replacement.
NOTICE:
The wrong wheel can also cause problems with
bearing life, brake cooling, speedometer
or
odometer calibration, headlamp aim, bumper
height, vehicle ground clearance and tire or tire
chain clearance to the body and chassis.
See “Changing a Flat Tire” in the Index for
more information.
A CAUTION:
Putting a used wheel on your vehicle is
dangerous.
You can’t know how it’s been used or
how far it’s been driven. It could fail suddenly
and cause an accident.
If you have to replace a
wheel, use
a new GM original equipment wheel.
I
6-44

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LAMPS
IGN 1
WINDOWS
SEATS
Usage
Headlamp Wash Relay (Export).
Headlamps Fuse/Relay, HighLow
Beam Control Relay, Fog
Lamp/DRL Fuse, Hazard Fuse,
Mirror Fuse, Inadvertent Power
Relay, Right
and I.,eft High Beam
Fuse, Right and Left
Low Beam
Fuse, Stop Fuse, Fog Lamp Relay
(STS Only), DRL Relay
Rear Ignition-
1 Relay. Wiper
Fuse. Relay Ignition- 1 Fuse,
Supplemental Inflatable Restraint
(SIR) Fuse, Accessory Relay
Delayed Accessory
Bus (DAB) Relay
Horn Relay, Driver and Passenger
Lumbar In/Out Relays, Driver
and
Passenger Up/Down Relays
I Fuse Usage
Steering Column Ignition Switch
Steering Column Ignition Switch
Front and Rear Ignition- 1 Relay,
Oxygen Sensor
I and 2 Fuse. Fuel
Fuse. Cruise Fuse, DRL Relay,
Front and Rear Fog Lamp Relay,
Control Power Back-Up Relay,
Ignition-
1 Fuse
Starter Relay
and Solenoid.
Park/Rev Fuse. Park Relay, PCM
Fuse,
AC Compressor Fuse and
Relay, Fan Relay
ABS Brake Modulator
Cooling Fan Relays
1 and 3
‘I: Do not alter OBD I1 related fuses or circuit breakers.

Downloaded from www.Manualslib.com manuals search engine I Fuse Usage
Stoplamp Switch, Centered
High-Mounted Stoplamp
(CHMSL), 'I"urn Hazard Switch,
ABS Controller. Stepper Motor
Cruise Control, Right and Left
Rear Stoplamps (Export)
Inadvertent Power Relay, Left
Outside Rearview Minor Switch,
ALDL. Menloly Mirror Module
Dimmer Switch, Cluster
Daytime Running Lamps (DRL:
Relay,
(STS Only) Left and
Right
Low Beam in DRL Mode,
DRL Switch
Powertrain Control
Module (PCM)
Anti-Lock Brake System
(ABS)/Traction
Control System
IGN- I
I WIPERS
A/C COMP
PRK/REV
Usage
Rear Ignition- 1 Relay, Front and
Rear
Fog Lamp Relays, Control
Power Back-up,
DRL Relay
Accessory Relay, Wiper Switch
AC Compressor Relay,
Cooling Fan Relays
1, 2,3,
Compressor Clutch
AC Compressor
PCM
TCC and Exterior Travel Brake
Switch, Reverse Relay, Right
and Left Back-up Lamps.
Electrochromatic Mirror
(in
Header), Park Relay, Brake
Transaxle-Shift Interlock (BTSI)
Switch, BTSI, PZM

Downloaded from www.Manualslib.com manuals search engine Number Application
Headlamps Composite Inner High Beam
....................... 9005
Outer
Low Beam ....................... 9006
Front Turn Signal
..................... 2357 NA
Rear Turn Signal and Taillamp ............. 2057
Engine Specifications
Displacement ......... 279 cubic inches (,4.565 cc)
Type
......................... 4.6 L DOHC V8
VIN Engine Code
SLS .................................... Y
STS .................................... 9
Horsepower
SLS ................... 275 (bhp) 0 5600 rpm
205 (kW) 0 5600 rpm
STS .................... 300 (bhp) @ 6000 rprn
224 (kW) 0 6000 rpm Torque
SLS .................. 300 (lb-ft) @ 4000 rpm
407 (N-rn) (n., 4000 rpm
STS .................. 29.5 ( 113-f’t I Cfa 4300 rprn
400 ( N.m 1 Cl: 4400 rpm
Firing Order ................... j...~..7-.~.-~-~-(~-fj -
Thermostat
Starts To Open . . 177- I8-tc F (8 1 -SS:’Cj
Capacities
Please refer to “Recommended F1 LI ids and
Lubricants” in your Maintenance Sched~rle bookie1
for more information.
Transaxle
(4T80-E) ............ 15 quarts ( 14.2 L)
Crankcase (Engine Oil with
Filter Change)
............. 7.0 quarts (6.62 L)
Engine Cooling System ....... 12.5 quarts ( 1 1.8 L)
Fuel Tank .................. 20 gallons (75.7 L)
R- 134a Refrigerant
............. 2.0 lbs. (0.9 1 kg)
6-64
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.
Speaker Covers .............................. 6-49
Special Problems ............................. 6-47
Stains ................................. 6.47. 6.48
Tires ....................................... 6-52
Vinyl ....................................... 6-48
Wheels
..................................... 6-51
Windshield and Wiper Blades ................... 6-50
Wood Panels ................................. 6-48
Climate Control Personalization
................... 3- 10
Climate Control . Steering Wheel Controls ............ 3-9
Climate Control System ........................... 3-2
Climate Control Panel 3-2
Clock . Setting the ............................... 3-10
Comfort Controls ................................ 3-2
Compact Disc Care ............................. 3-28
Compact Disc Player ............................ 3-2 i
Compact Disc Player Errors ....................... 3 -24
Compact Spare Tire ............................. 5-36
Compass . Rearview hlin-or with ................... 2-53
Console Shift Lever ............................. 2-30
Continuous Variable - Real Time Damping ........... 2-96
Control of a Vehicle .............................. 4-6
Convenience Net
............................... 2-59
Convex Outside Mirror 2-37
Coolant
....................................... 6-71
Heater. Engine ................................. ?-?, 3
SurgeTank .................................. 5-21
Cooling System ................................ 5- I9
Cornermg Lamps ............................... - 3 47 Cruise Control - 3 ... 4 1
9 ............................
.- ..........................
.................................
Cruise Engaged Message ......................... 2-91
Cupholders .................................... 2-59
Customer Assistance for Text Telephone Users ......... 7-3
Customer As.;istarm inf'orrnation
................... 7-1
Customer Satisfaction Proct.durc .................... 7-2
CV-RTD (CV-RSS ............................. 2-96
amage. Finish ............................. 6-52
Damage . Sheet Metill ............................ 6-52
Daytime
Runnins Lunph ......................... 2-46
Dead Battery .................................. 5-4
Defects. Reporting Sai'et! .................... 7-12 . 7-13
Defensive Driving ............................... 4.-2
Defrosting ..................................... 3-8
DIC .......................................... 2-85
Digital Control Buttons .......................... 2-86
Dimensions . Vehicle ............................ 6-65
Doli$ B Noise Reduction ............. 3- 1 3 . 3- 1 7. 3-2 1
Door
Defogger . Rear Windw: .......................... 3-9
Centrd Unlocking System ....................... 2-4
Mappockel ................................. 2-58
Open Message ............................... 2-91
Driver Door Open Message ....................... 2-91
Driver Information Center ........................ 2-85
Driver Position ................................. 1-12
Locks ....................................... 2-4
Driver Information Center Messages ................ 2-89
Driver'.'; Outside Auto-Dimming Rearview Mirror ..... 2-57
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