Dropped my Camaro off at the dealership earlier in the week and they finally got to my car and they say they can't duplicate the issue, they don't feel a vibration at all. An 'A' tech and service manager both went into the car. I'm starting to wonder if I should just take the car to my personal mechanic and have him do a flush rather than depend on the dealership to do the flush, cause clearly they don't want to work nor fix the complaint.