Just coming back from lunch I stopped at a stop light took a left and I sudednly noticed a "thumping" sound as I drove.
When I sped up it sped up when I slowed down it sloed down.
The best way to describe it is it sounds like there is a rock stuck in the tire.
I pulled over and checkecked out the tires and took a quick peek underneath (its pouring ot here so it was only a quick peek to see if there's anything OBVIOUS) nothing lokoed out of place.
Continued driving and the sounds tarted p again. Checked the tires again when I got to my office and still couldn't find a rock.
04 325 with 95000 miles.