Black plate (15,1)Chevrolet Impala Owner Manual - 2011
Vehicle Care 10-15
Cooling System
The cooling system allows the
engine to maintain the correct
working temperature.
3.5 L V6 Engine Shown, 3.9 LV6 Engine Similar
A. Coolant Recovery Tank
B. Pressure Cap
C. Electric Engine Cooling Fan (Out of View)
{WARNING
An electric engine cooling fan
under the hood can start up even
when the engine is not running
and can cause injury. Keep
hands, clothing, and tools away
from any underhood electric fan.
{WARNING
Heater and radiator hoses, and
other engine parts, can be very
hot. Do not touch them. If you do,
you can be burned.
(Continued)
WARNING (Continued)
Do not 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: Using coolant other
than DEX-COOL
®can cause
premature engine, heater core,
or radiator corrosion. In addition,
the engine coolant could require
changing sooner, at 50 000 km
(30,000 miles) or 24 months,
whichever occurs first. Any
repairs would not be covered by
the vehicle warranty. Always use
DEX-COOL (silicate-free) coolant
in the vehicle.
Black plate (18,1)Chevrolet Impala Owner Manual - 2011
10-18 Vehicle Care
How to Add Coolant to the
Radiator
{WARNING
An electric engine cooling fan
under the hood can start up even
when the engine is not running
and can cause injury. Keep
hands, clothing, and tools away
from any underhood electric fan.
{WARNING
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 surge tank pressure
cap—even a little —they can
come out at high speed. Never
turn the cap when the cooling
system, including the surge tank
pressure cap, is hot.
(Continued)
WARNING (Continued)
Wait for the cooling system and
surge tank pressure cap to cool if
you ever have to turn the
pressure cap.
If coolant is needed, add the proper
mixture directly to the radiator, but
be sure the cooling system is cool
before this is done.
1. 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.
If a hiss is heard, wait for that to
stop. A hiss means that there is
still some pressure left. 2. Keep turning the pressure cap
and remove it.
3. Fill the cooling system with the proper DEX-COOL coolant
mixture, up to the base of the
filler neck. See “What to use”for
more information about the
proper coolant mixture. Rinse or
wipe any spilled coolant from the
engine and the compartment.
4. Then fill the coolant recovery tank to the COLD FILL line.
