Look at the bottom or rear of radiator
In order to drain the radiator on a 2004 Pontiac GTO it is necessary to pull the lower radiator hose off. There is not a separate drain plug on this radiator.
on the radiator
The 1991 Pontiac Grand Am radiator drain plug can be found on the bottom of the radiator. The radiator drain plug will be in the center of the radiator bottom.
bottom of radiator
2-4-6 on the fire wall and 1-3-5 toward the radiator
The radiator petcock drain on a 1999 Pontiac Bonneville is on the bottom of the radiator. Look for a small black plug that looks like the plug found on a thermos or cooler.
Look at the lower or rear of radiator
It is on the bottom of the radiator on the drivers side.
Unlike most cars , the 2004 Pontiac gto does not have a drainage plug. Due to this inconvenience, the only way to drain the radiator is to remove it.
there may not be one if there is it is on the bottom if not you just remove the bottom radiator hose to drain
If it does not have a drain plug, just simply 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. .