How does the water normally drain out ? isn't there several little drain holes ? My friends '98 Avalon has what sounds like a gallon or more trapped in the rear door

There are holes in the front and rear bottom of the door. Many times leaves or other stuff get into the door and cover the holes. Take a stick, find the holes and poke up through them. You will get wet if you're not careful... :)

see, that's wat I thougt .... but there plastic peices in te way. Maybe I will try a coat hanger.