engine coolant CADILLAC ELDORADO 1998 10.G User Guide

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 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
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 km).
Towing a trailer in the overheat protection mode
should be avoided.
-~
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.
5-15

Downloaded from www.Manualslib.com manuals search engine If Steam Is Coming From Your Engine
L
A CAUTION:
Steam from an overheated engine can burn you
badly, even if you just open the hood. Stay away
from the engine
if you see or hear steam coming
from it. Just turn it
off and get everyone away
from the vehicle until it
cools down. Wait until
there is no sign of steam or coolant before you
open the hood.
If you keep driving when your engine is
overheated, the liquids in it can catch fire.
You or
others could be badly burned. Stop your engine if
it overheats, and get out
of the vehicle until the
engine
is cool.
5-16

Downloaded from www.Manualslib.com manuals search engine NOTICE:
If your engine catches fire because you keep
driving with no coolant, your vehicle can be
badly damaged. The costly repairs
would not be
covered by your warranty. See “Overheated
Engine Protection Operating Mode” in the Index.
If No Steam Is Coming From Your Engine
If you get the overheat warning but see or hear no
steam, the problem may
not be too serious. Sometimes
the engine can get a little too hot when you:
Climb a long hill on a hot day.
Stop after high-speed driving.
Idle for long periods in traffic.
Tow a trailer.
If you get the overheat warning with no sign of steam,
try this for a minute or
so:
1. Turn off your air conditioner.
2. Dial temperature control to the highest heat setting
and open the windows, as necessary.
3. If you’re in a traffic jam, shift to NEUTRAL (N);
otherwise, shift to the highest gear while
driving
-- OVERDRIVE (0) or THIRD (3).
If you no longer have the overheat warning, you can
drive. Just to be safe, drive slower for about
10 minutes.
If the warning doesn’t come back on,
you can
drive normally.
If the warning continues, pull over, stop, and park your
vehicle right away.
If there’s still no sign of steam, you can idle the engine
for two or three rqinutes while you’re parked,
to see
if the warning stops. But then, if you still have the
warning,
turn off the engine and get everyone out of
the vehicle until it cools down. Also, see “Overheated
Engine Protection Operating Mode” listed previously
in this section.
You may decide not
to lift the hood but to get service
help right away.
5-17

Downloaded from www.Manualslib.com manuals search engine When you decide it’s safe to lift the hood, here’s what
you’ll see:
A CAUTION:
An electric engine cooling fan under the hood can
start
up even when the engine is not running and
can injure you. Keep hands, clothing and tools
away
from any underhood electric fan.

A. Coolant Surge Tank with Pressure Cap
B. Electric Engine Fans
If the coolant inside the coolant surge tank is boiling,
don’t do anything else until it cools down.
5-18

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.
A CAUTION:
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 fixed 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 Add Coolant to the Coolant
Surge
Tank
If you haven’t found a problem yet, but the coolant level
isn’t at the proper level
(2.5 inches (6.4 cm) below the
base
of the fill neck), add a 50/50 mixture of clean
water (preferably distilled) and DEX-COOL@ coolant at
the coolant surge tank, but be sure the cooling system,
including the coolant surge tank pressure cap,
is cool
before you do it. (See “Engine Coolant’‘ in
the Index for
more information.)
A CAUTION:
Steam and scalding liquids from a hot cooling
system can blow out and burn you badly. They
are under pressure, and if
you turn the coolant
surge tank pressure cap
-0 even a little -- they
can come out at high speed. Never turn the
cap when the cooling system, including the
coolant surge tank pressure cap, is hot. Wait
for the cooling system and coolant surge tank
pressure cap to cool
if you ever have to turn
the pressure cap.
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
CAUTION: (Continued)
5-20

Downloaded from www.Manualslib.com manuals search engine CAUTION: (Continued)
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.
1 NOTICE:
In cold weather, water can freeze and crack the
engine, radiator, heater core and other parts.
So
use the recommended coolant.
I 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.
I. 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.
5-21

Downloaded from www.Manualslib.com manuals search engine .: .. ,I
2. Then keep turning the cap, but now push down as
you turn it. Remove the pressure cap.
3. Then fill the coolant surge tank with the proper
mixture, up to the base of the filler neck.
5-22

Downloaded from www.Manualslib.com manuals search engine 4. With the coolant surge tank pressure cap off. start the
engine and
let it run until you can feel the upper
radiator hose getting
hot. Watch out for the engine
cooling fans.
By this time, the coolant level inside the coolant
surge tank may be lower. If the level
is lower, add
more
of the proper mixture to the coolant surge tank
until the level reaches about 2.5 inches (6.4 cm)
below the base of the filler neck.
a
5. Then replace the pressure cap. Be sure the arrows on
the pressure cap
line up like this.
Start the engine and allow it to warm up. If the CHECK
COOLANT LEVEL message does not appear on the
Driver Information Center, coolant
is at the proper fill
level.
If a CHECK COOLANT LEVEL message does
appear, repeat Steps
1 through 3 or see your dealer.
5-23

Downloaded from www.Manualslib.com manuals search engine ,<+ --\,
Section 6 Service and Appearance Care
Here you will find information about the care of your vehicle. This section begins with service and fuel infomation,
and then it shows how
to check important fluid and lubricant levels. There is also technical information about your
vehicle, and a part devoted to its appearance care.
6-2
6-3
6-5
6-8
6-8
6-1 1
6- 15
6-18
6-22
6-26
6-28
6-3 1
6-32
6-38
6-3 8
6-47
6-47
6-49 Service
Fuel
Filling Your Tank
Filling a Portable Fuel Tank
Checking Things Under the Hood
Engine Oil
Air Cleaner
Automatic Transaxle Fluid
Engine Coolant
Windshield Washer Fluid
Brakes
Battery
Bulb Replacement
Windshield Wiper Blade Replacement
Tires Appearance Care
Cleaning the Inside
of Your Vehicle
Care
of Safety Belts 6-50
6-50
6-50
6-50
6-52
6-52
6-52
6-53
6-5
3
6-54
6-55
6-55
6-64
6-64
6-65
6-65 Cleaning
Glass Surfaces
Cleaning the Outside of the Windshield and
Wiper Blades
Weatherstrips
Cleaning the Outside
of Your Vehicle
Cleaning Aluminum or Chrome Wheels
(If Equipped)
Cleaning Tires
Sheet Metal Damage
Underbody Maintenance
Chemical Paint Spotting
Appearance Care Materials Chart
Vehicle Identification Number (VIN)
Electrical System
Replacement Bulbs Capacities and Specifications
Air Conditioning Refrigerants
Normal Maintenance Replacement
Parts
6-1