i have ran into this problem on several cars. you are limited, pliers or sum kind of grab and turn, once you turn these things u got to sort of wiggle and pull straight out, it will drain. if you want the whole piece out it should keep comming straight out after the first initial turn. i have been succesful with my small vise grips, not really clamping on the drain peacock handle but just open enough to slide in there and turn. i have had to BREAK these out carefully. u may have a small end piece that stays in the system but what are you gonna do? replace it and you are done. if all else fails you have to remove the radiator, or remove something else to gain access. good luck. ps remember its only plastic.
