After i drive the car for about 10 minutes...the floor under the pedals vibrates a little bit. Im guessing it has something to do with the wheel bearing but im not positive. The vibration is only on the left side. I have a 04 5AT. Do you guys think its the wheel bearing or is it something else? Thanks.

 

i had a similar problem and found out the i had a slightly bent rim and the tires were not balanced correctly.