Where is the radiator drain puly on a 2004 Pontiac gto?

The 2004 Pontiac GTO's radiator drain plug is located at the bottom of the radiator, on the driver's side. You'll likely need to get underneath the car to access it easily. It's usually a small petcock or plug. Be prepared for some hot coolant if the engine has been running recently, so let it cool down completely before attempting to drain it.