engine coolant CADILLAC ELDORADO 1994 10.G User Guide

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NOTICE:
If your engine catches fire because you keep drivingwith no
coolant, yourd.&le can be bad$ damaged. The costly repairs
would not be covered by yom’wamnty.. See ‘‘Overheated Engine
Protection Operating~Made” iri the- Index.
IfNo Steam Is Coming From Your Engine
If you get .the overheat .warningbut see or. hear no steam, the problem
may net
be too serious. Someiimes the engine can get a iittktoo..hot
when
you:
0 Climb a long hill on a hat day.
0 Stop after- high speed driving.
Idle for long periods in traffic.
Tow a trailer.
If you get the overheat warning with no sign af steam, try this .for a
minute
or so:
1. Turn off your air conditioner.
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Downloaded from www.Manualslib.com manuals search engine 2. Turn on your heater to full hot at the highest fan speed and open the
window as necessary.
3. Dial temperature control to the highest heat setting and open the
window, as necessary.
If you no longer have the overheat warning, you can drive. Just to be safe,
drive slower for about ten 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
minutes 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.
You may decide not to lift the hood but to get service help right away.
COOLING SYSTEM
When you decide it's safe to lift the hood, here's what you'll see:
A. Coolant surge tank with pressure cap
B. Electric engine fans
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If the coolant inside the coolant. surge tank is boiling, don’t do anything
else until it cools
down.
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The coolant level should be visible inside the surge tank. If it isn’t and the
“ENGINE
COOLANT LOW” message appears on the Driver
Information Center, you may have a coolant leak somewhere in the
cooling system.

Downloaded from www.Manualslib.com manuals search engine I NOTICE:
Engine damage from 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, check to see if the electric engine fans are
running. If the engine is overheating, both fans should be running.
If they
aren’t, your vehicle needs service.
How to Add‘Coolant to the Coolant Surge Tank
If you haven’t found a problem yet, but the coolant level isn’tvisible
inside the surge tank add a
50/50 mixture of clean water (preferably
distilled) and a proper antifreeze 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 about the proper coolant mix.)
If it isn’t, you may have a leak in the radiator hose, heater hoses, radiator,
water pump or somewhere else in the cooling system.
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NOTICE:
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In cold weather, water can freeze and crack the engine, radiat\
or, -
heater core and other parts. So use the recommended coolant. L
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1.
(Don't press down while turning the pressure cap.)
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 to the
left until it first
stops.
If you hear a hiss, wait for that to stop. A hiss means there is still some
pressure left.
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.. *, 2.. VeQkeep turning
. - thakap, but now
push
dm as you
! turn it. Remove
the pressure cap.
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3. Fill the coolant
I surge tank with
the proper
mix, up
1
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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 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 mix to the coolant surge tank
until the level reaches about 2 1/2 inches (60 mm) below the base of the
filler neck.
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5. Then replace the
pressure cap. Be
sure the arrows
on
the pressure cap
line up like this. 7
Start the engine and allow it to warm up. If the “ENGINE COOLANT
LOW” message does not appear on the Driver Information Center,
coolant is at
the proper fill level. If an “ENGINE COOLANT LOW”
message does appear, repeat steps 1 to 3 or see your dealer.
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Downloaded from www.Manualslib.com manuals search engine Engine Oil Additives
k Don’t add anything to your oil. Your Cadillac dealer is ready to advise if
you think something should be added.
‘C When to Change Engine Oil
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Your Cadillac has an “Oil Life Indicator.” This feature will let you know
when to change your oil
-- usually between 3,000 miles (5 000 km) and
7,500 miles (12 500
km) since your last oil change. Under severe
conditions, the indicator may come on before
3,000 miles (5 000 km).
Never drive your vehicle more than 7,500 miles (12 500 km) or 12 months
without an oil change.
The system won’t detect dust in the oil.
So, if you drive in a dusty area, be
sure to change your oil every 3,000 miles (5 000 km) or sooner if the
“CHANGE ENGINE OK’ message is displayed. Remember to reset the
Oil Life Indicator when the oil has been changed. For more information,
see “Oil Life Indicator” in the Index.
How to Reset the Oil Life Indicator
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After the oil has been changed, display the “OIL LIFE LEFT” message
by pressing the INFORMATION button. Then press and hold the
RESET button until the display shows
“loo”.. This resets thle.,oil life index.
The message will remain
off until the next oil change is needed. The
percentage of oil life remaining may be checked at any time by pressing
the INFORMATION button several times until the
“OIL LE% LEFT”
message appears. For more information on the Oil Life Index feature, see
“Oil Life Index” in the Index.
Engine Coolant Heater (Engine Block Heater)
An engine coolant heater can be a big help if you have to park outside in
very cold weather, O°F (-18O C) or colder. If your vehicle has this option,
see “Engine Coolant Heater” in the Index.
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Downloaded from www.Manualslib.com manuals search engine 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’% the Index.
r The proper coolant for your Cadillac will:
0 Give freezing protection down to -34°F (-37°C). - I .0 Give boiling protection up to 262°F (128O C).
0 Protect against rust and corrosion.
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Help keep the proper engine temperature.
0 Let the warning lights work as they should.
What to Use
Use a mixture of one-half clean water. (preferably distilled) and one-half
antifreeze that ,meets “GM Specification
.1825-M,” which won’t damage
aluminum parts. You can also use a recycled coolant conforming to GM
Specification 1825-M with a complete coolant .flush and refill. Use GM
.Engine Coolant Supplement. (‘sealer) with any. complete coofant change.
If you use this mixture, you don? need to add anything else.
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Downloaded from www.Manualslib.com manuals search engine NOTICE:
If you use an improper coolant mix, your engine could overhea,t
and be badly damaged. The repair cost wouldn’t be covered b\
y
your warranty. Too much water in the mix can freeze and crack
the engine, radiator, heater core and other parts.
Adding Coolant
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Your cooling system when hot is under a lot of pressure. If the “ENGINE
COOLANT
LOW” message should appear on the Driver Information
Center,
you will need to add coolant.
If the “ENGINE COOLANT LOW” message does not appear, the
coolant is at the proper fill level.
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