Page 218 of 404

Downloaded from www.Manualslib.com manuals search engine 'Engine Overheating
You will find a coolant temperature gage on your
Chevrolet's instrument panel. You may also find a LOW
COOLANT warning light on your Chevrolet's
instrument panel.
(V8 Engine Only)
If Steam Is Coming From Your Engine
t A
/! CAUTION:
Steam from an overheated engine can burn
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.
I 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.
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Page 220 of 404
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. Coolant Recovery Tank
B. Radiator Pressure Cap
C. Electric Engine Fan
A CAUTION:
An electric 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.
If the coolant inside the coolant recovery tank is boiling
don’t do anything else
until it cools down.
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Page 221 of 404
Downloaded from www.Manualslib.com manuals search engine When it is cool, remove the coolant recovery tank cap
and look at the dipstick.
The coolant level should be
at FULL COLD.
If it isn’t, you may have a leak in the radiator hoses,
heater hoses, radiator, water pump or somewhere
else in
the cooling system.
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 from running your engine
without coolant isn’t covered
by your warranty.
If there seems to be no leak, with the engine on, check to
see if the electric engine fan is running. If the engine is
overheating, the fan should be running. If it isn’t, your
vehicle needs service.
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Page 222 of 404

Downloaded from www.Manualslib.com manuals search engine How to Add Coolant to the Coolant
Recovery Tank
If you haven’t found a problem yet, but the coolant level
isn’t at FULL COLD, add a
50/50 mixture of clean water
(preferably distilled) and DEX-COOL@ (silicate-free)
antifreeze
at the coolant recovery tank. (See “Engine
Coolant’’ in the Index for more information.)
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.
CAUTION: (Continued)
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.
I NOTICE:
~
In cold weather, water can freeze and crack the
engine, radiator, heater core and other parts.
Use the recommended coolant and the proper
coolant mix.
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Page 223 of 404
Downloaded from www.Manualslib.com manuals search engine 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.
When the coolant in the coolant recovery tank is at
FULL COLD, start your vehicle.
If the overheat warning continues, there's one more
thing you can try.
You can add the proper coolant mix
directly
to the radiator, but be sure the cooling system is
cool before you do it.
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Page 225 of 404
Downloaded from www.Manualslib.com manuals search engine How to Add Coolant to the Radiator
(V6 Engine Only)
1 NOTICE:
Your engine has a specific radiator fill procedure.
Failure to follow this procedure could cause your engine
to overheat and be severely damaged.
1. You can remove the pressure cap when the cooling
system, including the 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 226 of 404
Downloaded from www.Manualslib.com manuals search engine 2. Then keep turning the pressure cap, but now push
down as
you turn it. Remove the pressure cap.
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.
J
3. After the engine cools, open the coolant air
bleed valve.
3800 V6 (VIN Code K): There is one bleed valve. It
is located on the thermostat housing.
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Page 227 of 404
Downloaded from www.Manualslib.com manuals search engine 4. Fill the radiator with the proper DEX-COOL'
coolant mixture, up to the base of the filler neck.
If you see a stream of coolant coming from an air
bleed valve, close the valve. Otherwise, close the
valve after the radiator
is filled.
5. Then fill the coolant recovery tank to FULL HOT.
6. Put the cap back on the coolant recovery tank, but
leave the radiator pressure cap off.
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