[xeroinfinity]

there should be one under the radiator, a plastic wing-nut or sone use a socket extension, a square-hole. good luck getting it out, i break them all the time. i just drain it from the radiator hoses, but that still doesnt get all the system drained, the engine block and heatercore will still have coolant/muddy water. hook the hoses back up fill with water and run the car to circulate and let cool down,drain hose etc. this will flush most the crud out. you can also use a cleaner,"radiator flush" which will clean the crud out better. just have to drain refill the system 4-5 time to get the Cleaner out. There are several brands at your local Auto parts store. Hope the help u out man \,,/