Kristin Foster Holliston, Massachusetts - 2004 Toyota Sienna
A suspension/wheels question. Her car is making a sound at slow speeds, she thinks it's coming from right rear wheel. Sounds like, "cup cup cup cup". Doesn't always happen. Probably something in the tire, or deformation of the tread. If there's a foreign object, don't pull it out-you might get a flat. Have it repaired at a shop.