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 does not have a drain plug, just simply remove the lower radiator hose.
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.
There isn't one. Use the lower hose.
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.
Drain or petcock should be a the lower of rear of radiator or remove lower radiator hose
Remove the lower radiator hose.
there may not be one if there is is it on the bottom side and if it is not you candrain it by removing the bottom rad hose The 1999 Pontiac Grand Am does not have a radiator drain valve. To drain the radiator, remove the lower radiator hose. The engine should be cold and the water fill cap removed for venting. I have a 2000 Pontiac Grand AM and radiator drain cock is located at the lower/front (not bottom) at the curbside of the radiator, you will need a hex key to back out petcock. .
Petcock on bottom or radiator or remove lower hose.
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.
there isn't a radiator drain plug. you have to remove the lower radiator hose from the radiator to do a drain and fill.
Drain plug either at the bottom or rear of the radiator or remove the lower radiator hose
Drain plug should be on bottom or rear of the radiator or remove lower radiator hose