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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.
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.
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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.
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 TM
(orange-colored, silicate-free) antifreeze at the coolant
recovery tank. (See “Engine Coolant” in the Index for
more information.)
I 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 TM antifreeze.
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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.
- -
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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HOW to Add Coolant to the Radiator
i'l (V6 Engine Only)
2. Then keep turning the pressure cap, but now push
down
as you turn it. Remove the pressure cap.
1. You can remove the rachator pressure cap when the
cooling system, including ,&e radiator pressure cap Bnd
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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6. Start the engine and let it run until you can feel the
upper radiator hose getting hot. Watch out for the
engine
fan.
filler neck may be lower. If the level is lower, add
more
of the proper mix through the filler neck until
the level reaches the base
of the filler neck.
7. By this time the coolant level inside the radiator
8. 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.
, 'I I
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How to Add Coolant to the Radiator
(V8 Engine Only)
NOTICE:
The LTl Engine (Code P) has a specific radiator
fill procedure. Failure to follow this procedure
could cause your engine to overheat and be
severely damaged.
<
I
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.
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2. Then keep turning the pressure cap, but now gush
down as you turn it, Remove the pressure cap.
/rl CAUTION:
I
1
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.
3. After the engine cools, open the air bleed valves on
the heater return hose and water pump inlet.
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Page 224 of 386
4. Fill with the proper mix. Add coolant until you
see a steady stream of coolant coming from the
bleed valves.
.. i L . -8
-.
5. Close the bleed valves.
6. Continue to fill the radiator up to the base of the
7. Rinse or wipe the spilled coolant from the engine
and compartment.
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.
filler
neck.
I. . :-
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