 troubleshooting what I've done, put it up on ramps, put the emergency brake on, have someone inside hold the brake and put it into drive. And it's actually the heat shield and I can get a pry bar up in there and put pressure on the heat shield when it's in drive and the noise goes away. Shift it into neutral, there's no noise. And it doesn't do it when the outside temperature is below 80. So it's, you know, something that happens with the heat shield and the temperature.