For a couple of months as I turn the wheel sharply to park or turn at a stop, I'll hear and feel a 'clunk-clunk' under the drivers side floor, sounds as if the tire is rubbing on something. It comes and goes. It's not hitting the OEM mud guard, as it happened before I put snows on, with no snow. Of course it didn't do this when I took it to Nissan. While coasting on a slant, I turned the wheel one inch left/right a few times, it made the same sound both ways. Nissan said bring it back when it does this. Any one else experienced this gremlin??