y 2010 aveo does same we recently had the whole head redone and the 02 censor replaced this is the 2 time this has occurred , the shop I take it to I don't think knows and keeps lieing , I can start it right up let it idol to warm up and it will **** off , I can drive any speed and here a clank clank clank sometimes first or just shut off , I would really like to get to bottom of this problem ... so far on this feed there so many different answers ... spark plugs , radiator cap , fuel filter or pump , etc where do you start please help ??