Search for a drain petcock along the lower edge of the radiator tanks. Loosen the valve with a pliers, but DO NOT OVERTIGHETEN IT. Not all radiators have one. If you can't find one, then you will have to remove the lower radiator hose which will drain most of the coolant from the engine block too.
on the radiator
Should be at the bottom of the radiator logically...
if there is no drain petcock on lower radiator tank, removing bottom radiator hose at radiator is the only way to drain radiator
If it has one it will be located on the bottom of the radiator. If not, then just remove the lower hose to drain the radiator.
If it does not have a drain plug, just simply remove the lower radiator hose.
they are at the bottom corner of the radiator.
engine side of radiator, toward the bottom, drivers side.
Where is the ac drain tube for 2004 grand prix
Look closely at the radiator. Check the bottom corner of the radiator that is opposite of the lower radiator hose. If there is no drain plug or petcock, then the coolant will need to be drained by removing the lower radiator hose.
Under radiator on bottom left, should be a plug or a screw.
The drain plug is on the bottom of the radiator on the drivers side. It is small white plug, and can easily break, so use care when removing.
replacing a fuel sensor on a 2003 grand prix?