Where is the radiator drain cock on a 1999 Pontiac Grand Am?

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. .