does engine turn a few times or do you mean its like when you try to start it in gear and it dosent turn even a full revolution, and then sort of turns backwards when key released?if the latter it may be that one of the bores is full of water if so you will need to remove injectors and try turning again [watch out as water expells at some speed ] then if so, you may be looking at least head gasket problem or more!
k
March 2010