2010 PONTIAC G6 radiator cap

How to Add Coolant to the Coolant
Surge Tank
{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 specic coolant ll
procedure. Failure to follow this procedure could
cause the engine to overheat and be severely
damaged.
{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. Wait for the cooling system and surge
tank pressure cap to cool if you ever have to turn
the pressure cap.
If no coolant is visible in the surge tank, add coolant as
follows:
1. Remove the coolant surge tank pressure 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 you hear a hiss, wait for that to stop. This will
allow any pressure still left to be vented out
the discharge hose.
6-33

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
and 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 you can feel the upper
radiator hose 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.
If coolant is needed, add the proper DEX-COOL
®
coolant mixture at the coolant recovery tank.
6-34

Once a Month
•
Tire inflation check. SeeInation - Tire Pressure on
page 6-64.
•Tire wear inspection. SeeTire Inspection and
Rotation on page 6-73.
Once a Year
•
Starter switch check. SeeOwner Checks and
Services on page 7-8.
•Parking brake and automatic transmission P (Park)
mechanism check. SeeOwner Checks and
Services on page 7-8.
•Automatic transmission shiftlock control system
check. SeeOwner Checks and Services on
page 7-8.
•Ignition transmission lock check. SeeOwner Checks
and Services on page 7-8.
•Engine cooling system and pressure cap pressure
check. Radiator and air conditioning condenser
outside cleaning. SeeCooling System on page 6-30.
•Exhaust system and nearby heat shields inspection
for loose or damaged components.
•Accelerator pedal check for damage, high effort, or
binding. Replace if needed.
•If the vehicle has a Tire Sealant and Compressor Kit,
check the sealant expiration date printed on the
instruction label of the kit. SeeTire Sealant and
Compressor Kit on page 6-82.
7-5

First Engine Oil Change After Every
40 000 km/25,000 Miles
•
Fuel system inspection for damage or leaks.
First Engine Oil Change After Every
80 000 km/50,000 Miles
•
Engine air cleaner filter replacement.
SeeEngine Air Cleaner/Filter on page 6-26.
•Automatic transmission fluid change (severe
service) for vehicles mainly driven in heavy
city traffic in hot weather, in hilly or mountainous
terrain, when frequently towing a trailer, or used for
taxi, police, or delivery service. SeeAutomatic
Transmission Fluid (2.4L L4, 3.5L V6 and
3.6L V6 Engines) on page 6-27orAutomatic
Transmission Fluid (3.9L V6 Engine) on page 6-28.
First Engine Oil Change After Every
160 000 km/100,000 Miles
•
Automatic transmission fluid change (normal
service). SeeAutomatic Transmission Fluid
(2.4L L4, 3.5L V6 and 3.6L V6 Engines) on
page 6-27orAutomatic Transmission Fluid
(3.9L V6 Engine) on page 6-28.
•Spark plug replacement.An Emission Control
Service.
First Engine Oil Change After Every
240 000 km/150,000 Miles
•
Engine cooling system drain, flush, and refill,
cooling system and cap pressure check, and
cleaning of outside of radiator and air conditioning
condenser (or every 5 years, whichever occurs first).
SeeEngine Coolant on page 6-31.An Emission
Control Service.
•Engine accessory drive belt inspection for fraying,
excessive cracks, or obvious damage and
replacement, if needed.An Emission Control
Service.
7-6