i was driving last night, and i hit an unseen pothole (really hard). i had a friend drive with me and we have pointed out the source of the whistle in the area near the pass. side door. has this ever happened to any one before , if so what did you do. I am almost 100% sure that there was no whistle before i hit the pothole. i checked under the front of the car. as far as the visual is concerned i dont see anything broken. there is no shuddering @ high speeds. please help