The release of pressure after a shockwave is the roaring noise people hear. — -- Southern New Jersey was rocked by a sonic boom this afternoon, and no one has yet to claim responsibility for the ...
DEAR CAR TALK: I have a 2008 Ford Explorer Sport Trac, which runs great. But after driving approximately 15 miles or so, it starts making a roaring sound. Sometimes the open-ended wrench symbol on the ...