Has anyone's wheel hub ever came loose? I noticed a loud squeaky sound from one of my front wheels when i tried to move the car. I was told it was caused by a loose hub after getting it checked. I have a 2k2 with about 50k miles on it, and I always tried my best to avoid uneven pavements and potholes. Is it normal for my bearing hub to come loose at this stage of my car's life? Thanks for any inputs...