[analyzerlx]

I have a similar noise coming from my '04 Optima EXV6, my wife ran over a cow carcass in New Mexico a couple years ago and I figured it was from that. The car pretty much glided over the cow, with the driver's side lifting off the road and bouncing enough for our daughter to wake up! It was night, so we drove all the way to Phoenix before stopped. The noise appeared shortly after that incident, but usually happens when it rains for some reason and goes away for long periods of time???