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 224 of 404
Downloaded from www.Manualslib.com manuals search engine 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 radiator
pressure cap
-- even a little -- they can come out
at high speed. Never turn the cap when the
cooling system, including the radiator pressure
cap,
is hot. Wait for the cooling system and
radiator pressure
cap to cool if you ever have to
turn the pressure cap.
5-20
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.
5-2 1
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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Page 228 of 404
Downloaded from www.Manualslib.com manuals search engine 3
7. Start the engine and let it run until you can feel the
upper radiator hose getting hot. Wdtch out for the
engine fan(
s).
filler neck may be lower. If the level is lower, add
more
of the proper DEX-COOL@ coolant mixture
through the filler neck
until the level reaches the
base
of the filler neck.
8. By this time, the coolant level inside the radiator
9. Then replace the pressure cap. At any time during
this procedure if coolant begins to
flow out of the
filler neck, reinstall the pressure cap. Be sure the
arrows
on the pressure cap line up like this.
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Page 229 of 404
Downloaded from www.Manualslib.com manuals search engine How to Add Coolant to the Radiator
(VS Engine Only)
I NOTICE:
The LT1 Engine (Code P) 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 radiator pressure cap when the
cooling system, including the radiator 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.
5-25
Page 231 of 404
Downloaded from www.Manualslib.com manuals search engine 8. Start the engine and allow it to run in idle for
approximately four minutes. By this time, the
coolant level inside the radiator will be lower. Add
more
of the proper mix through the filler neck until
the level reaches the base of the filler neck.
4. Fill with the proper DEX-COOL@ coolant mixture.
Add coolant until
you see a steady stream of coolant
coming from
the bleed valves.
5. Close the bleed valves.
I
E
6. Continue to fill the radiator up to the base of the
filler neck.
7. Rinse or wipe the spilled coolant from the engine
and compartment.
9. Shut the engine off and replace the pressure cap. Be
sure the arrows on the cap line up like this.
5-27