Whenever I hit the tiniest little bump in stop and go traffic, I hear something very loose underneath the car. It is quite pronounced. Sounds like it is in the front end but sometimes it seems like it is in a different place. Struts all seem fine, springs are all fine. Seems more apparent when I turn in one direction (left) over the other but I'm not entirely sure about that. Also makes a lot of loose noise heading straight--only on bumps. There's no clicking to make me think it would be CV joints and no loose steering or play in wheel to make me think it would be tie-rods. This car does have a lot of engine vibration issues so maybe a bolt or something is working itself loose. Crossmembers seem to be tight when I try to move them. Anybody have a similar issue? Just traveled over 1500 miles without any problems...problem existed before I left.