I have a 2009 cobalt and I recently hit a raccoon causing my radiator to crack and my engine to overheat. I didnt realize that I had a crack but did have the cooling mode on flashing at me on the dash. I kept driving the car after a put a gallon on coolant in it. I drove it hot for another few miles and the car started losing power then just stopped and hasn't started sense. When I the. The key the timing chain spins and is cranking but the car just doesn't turn over. The oil is not milky indicating a blown gasket, but the engine just won't start. I have changed the cam sensor and all my spark plugs, but the car still won't fire. Any ideas? A mechanic has said that the car is turning but it just isnt firing. So idk what the problem is. The oil is a little low also it is a little burnt but nothing too terrible.