I think I'm becoming an automotive hypochondriac ever since I started owning this car...I was sitting at a light the other day and all of sudden I heard a faint sound coming from what seemed to be the passenger side rear of the car. It sounded like a ticking clock or a heart beat...it was some what faint, but still noticiable. It is intermittent though and has no particulars when it happens and seems to go away when I begin to drive off...anyone have any ideas? Fuel pump? Gremlins?