If anyone has had this problem and solved it, I'd appreciate knowing how. I have a 97 T&C since it was new. For the last few years, there has been a growing road/tire noise in the passenger compartment. New tires did not really solve the problem, it simply changed the pitch of the noise somewhat. The volume has grown to the point that you just about can't hear the radio at anything lower than full volume. There has been no changes in the insulation around the cabin that might explain this. The noise is worse as you make turns, particularly left turns. Further the greater noise seems to come from the front passenger side. I have driven beside the van with windows down and can detect no unusual noise from the outside. It just seems to be in the passenger compartment. The only thing I can think of is some hardening or degradation of a bushing somewhere in the suspension (like possibly a busing in the front strut that isolates it from the frame) but the tires wear evenly, there is no vibration in the steering, and there is no pulling that I would think would accompany a suspension/steering problem.
Anyone have any ideas what might cause this?