2012 CHEVROLET MALIBU radiator cap

Black plate (16,1)Chevrolet Malibu Owner Manual - 2012
10-16 Vehicle Care
Cooling System
The cooling system allows the
engine to maintain the correct
working temperature.
3.6 L V6 Engine Shown,2.4 L L4 Engine Similar
A. Engine Cooling Fans (Out of View)
B. Engine Coolant Surge Tank
C. Pressure Cap
{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.
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 mi)
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.
Engine Coolant
The cooling system in the vehicle
is filled with DEX-COOL®engine
coolant. This coolant is designed to
remain in the vehicle for 5 years or
240 000 km (150,000 mi), whichever
occurs first.
The following explains the cooling
system and how to check and add
coolant when it is low. If there is a
problem with engine overheating,
see Engine Overheating on
page 10‑20.

Black plate (18,1)Chevrolet Malibu Owner Manual - 2012
10-18 Vehicle Care
Checking Coolant
The vehicle must be on a level
surface when checking the coolant
level.
Check to see if coolant is visible in
the coolant surge tank. If the coolant
inside the coolant surge tank is
boiling, do not do anything else until
it cools down. If coolant is visible
but the coolant level is not at or
above the FULL COLD mark, add a
50/50 mixture of clean, drinkable
water and DEX-COOL coolant at the
coolant surge tank, but be sure the
cooling system is cool before this is
done. SeeEngine Overheating on
page 10‑20 for more information.
The coolant level should be at or
above the FULL COLD mark on the
coolant surge tank. If it is not, there
may be a leak at the pressure cap
or in the radiator hoses, heater
hoses, radiator, water pump,
or somewhere else in the cooling
system.
How to Add Coolant to the
Coolant Surge Tank
{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
(Continued)
WARNING (Continued)
pressure cap, is hot. Wait for the
cooling system and surge tank
pressure cap to cool if you ever
have to turn the pressure cap.
{WARNING
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. Do not spill
coolant on a hot engine.
Notice: This vehicle has a
specific coolant fill procedure.
Failure to follow this procedure
could cause the engine to
overheat and be severely
damaged.

Black plate (19,1)Chevrolet Malibu Owner Manual - 2012
Vehicle Care 10-19
If coolant is needed, add the proper
DEX-COOL coolant mixture at the
coolant surge tank.
1. Remove the coolant surge tankpressure 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 about
two or two and one-half turns.
If a hiss is heard, wait for that
to stop. This will allow any
pressure still left to be vented
out the discharge hose. 2. Keep turning the pressure cap
slowly, and remove it.
3. Fill the coolant surge tank with the proper mixture, to the
FULL COLD mark. Wait about
five minutes, then check to see if
the level is below the mark. If the
level is below the FULL COLD
mark, add additional coolant to
bring the level up to the mark.
Repeat this procedure until the
level remains constant at the
FULL COLD mark for at least
five minutes.
4. With the coolant surge tank pressure cap off, start the
engine and let it run until the
upper radiator hose can be felt
getting hot. Watch out for the
engine cooling fans. By this time, the coolant level
inside the coolant surge tank
might be lower. If the level is
lower than the FULL COLD
mark, add more of the proper
mixture to the coolant surge tank
until the level reaches the FULL
COLD mark.
5. Replace the pressure cap. Be sure the pressure cap is
hand-tight and fully seated.
Notice: If the pressure cap is not
tightly installed, coolant loss and
possible engine damage may
occur. Be sure the cap is properly
and tightly secured.