Page 242 of 354
Downloaded from www.Manualslib.com manuals search engine :?.
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I A CAUTION:
I
j 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
50150 mix of clean
water and
DEX-COOL R*l antifreeze.
i
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Page 243 of 354
Downloaded from www.Manualslib.com manuals search engine 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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Page 244 of 354
Downloaded from www.Manualslib.com manuals search engine t I
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P 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 mix,
up to the base
of the filler neck.
C
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Page 245 of 354
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
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 2.5 inches (60 mm)
below the base of the filler neck.
S. Then replace the pressure cap. Be sure the arrows on
the pressure cap line up like this. c
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 to 3 or see your dealer.
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Page 265 of 354
Downloaded from www.Manualslib.com manuals search engine When you put the cap back on, turn it to the right until
you hear at least three clicks. Make sure you fully install
the
cap.
I NOTICE:
If you need a new cap, be sure to get the right
type. Your dealer can get one for you. If you get
the wrong type, it may not fit
or have proper
venting, and your fuel tank and emissions system
might be damaged.
Checking Things Under the Hood
A CAUTION:
..
An electric fan under the hood can start up and
injure you even when the engine
is not running.
Keep hands, clothing and tools away from any
underhood electric fan.
A CAUTION:
Things that burn can get on hot engine parts and
start
a fire. These include liquids like gasoline,
oil, coolant, brake fluid, windshield washer and
other fluids,
and plastic or rubber. You or others
could be burned.
Be careful not to drop or spill
things that will
burn onto a hot engine.
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Page 267 of 354
Downloaded from www.Manualslib.com manuals search engine When you open the hood, you'll see:
.. .
A. Battery D. Oil Fill Location G. Transaxle Dipstick/Fill
B. Coolant Fill Location
E. Engine Oil Dipstick Location H. Air Cleaner
C. Power Steering Fluid E Brake Master Cylinder I. Windshield Washer Fluid
Before closing the hood, be sure all filler caps are on properly. Then
pull the hood down and close it firmly.
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Page 279 of 354

Downloaded from www.Manualslib.com manuals search engine Engine Coolant
The cooling system in your vehicle is filled with new
DEX-COOL rm (orange-colored, silicate-free) engine
coolant. This coolant is designed to remain
in your
vehicle
for 5 years or 100,000 miles (1 66 000 km),
whichever occurs first.
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 the proper coolant for
your Cadillac will:
0 Give freezing protection aown to -34°F (-37°C).
0 Give boiling protection up to 265 “F (129 O C).
0 Protect against rust and corrosion.
0 Help keep the proper engine temperature.
0 Let the warning lights and gages work as they should.
NOTICE:
When adding coolant it is important that you use
DEX-COOL (orange-colored, silicate-free)
coolant meeting
GM Specification 6277M.
If dicated coolant 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.
What to Use
Use a mixture of one-half clean water (preferably
distilled)
and one-half DEX-COOL (orange-colored,
silicate-free) antifreeze that meets
GM Specification
6277M, which won’t damage aluminum
parts. Use
GM Engine Coolant Supplement (sealer)
(GM Part
No. 3634621) with any complete coolant change. If you
use this mixture, you don’t need to add anything else.
A special procedure is required for adding sealer; see the
Cadillac service manual.
(To order a service manual, see
“Service and Owner Publications”
in the Index.)
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Page 280 of 354

Downloaded from www.Manualslib.com manuals search engine A CAUTION:
~~~~~ ~
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 (orange-colored,
silicate-free) antifreeze.
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.
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.
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