Hi, I was looking at a 2002 100 in my area today and took it for a drive. At around 35-45 mph I thought I could hear a sound coming from somewhere under the hood, drivers side. Something like a flutter, clicking sort of sound. Could be as simple as something loose and the wind at higher speeds caused it. Or, something worse, but I don't know what that would be. It was more of a random sound, not consistent in cadence like if it was mechanical. Anything I should be worried about? I may have found something I need to act quickly on, TB/WP/CV all recently done and price may be right. Thank you!