How do I find and loosen the radiator petcock?

Reviewing replacement radiators for the 2.2L engine in your vehicle, the petcock or draincock is located on the bottom of the radiator on the same side as the radiator cap. Both of which are on the driver's side of the vehicle. The drain is a plastic plug that has a wing nut end on it so you should be able to loosen it by hand. You may need to pliers to crack it loose and then spin it out by hand. Be sure to have a drain pan ready! See the picture for reference, drain is circled.