Sometimes my '06 Saturn Ion won't start. The first time I was going to church and I tried to start it but it wouldn't start. It made a humming noise the first time I tried to crank it but all the other times it made no noise at all. I got a ride and when I got home it miraculously started. The seconded time was this morning when I was going to school it did the exact same thing. Im not sure what is wrong. I know it's not the battery because we already checked that! If anyone has any idea what the problem may be please let me know! I would greatly appreciate it!! Thanks!