[Philly]

before you go pulling the lock cyl or tumbler, try giving the part the goes into the ignition switch on the tumbler a good crank backwards with your hand, thats how i managed to free mine up again. My tumbler also did 360's leading up to it, if you get it fixed again by cranking that part back, don't let yourself do 360's anymore, always turn it back to 'OFF' and try again til you feel it catch. I havn't had a problem since.