Pontiac 2008 grand prix Automobile User Manual


 
How to Add Coolant to the Radiator
(3.8L V6 Engine)
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 cap slowly
counterclockwise.
If you hear a hiss, wait for that to stop. A hiss
means there is still some pressure left.
2. Then keep turning the pressure cap and remove it.
{CAUTION:
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.
3. Remove the engine cover to access the
bleed valve.
3.1. Clean the area around the engine oil fill tube
and cap before removing. Twist the oil fill
tube, with cap attached, counterclockwise
and remove it.
3.8L V6 Engine
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