When driving slowly around mostly parking lots I started hearing a new noise when turning the steering wheel. It happens only when I make a left turn. Past somewhere 180 degrees into the turn, I hear some kind of a rubbing noise coming from the front of my car's left side. The noise persists as long as the wheel is being turned. It almost feels like some parts rub each other, perhaps in need of a little grease. This is not the whining noise that's caused by a bad steering gear (that was replaced a year ago). Any ideas what could this possibly be? Should I jack up the car and check anything?