Rear wheel I just brought a 2000 used dodge grand caravan. The rear wheel is making a thumping noise, It sounds as if I have a flat tire.

Does the van shake or vibrate? does the van have tires on it ?start by switching the left rear with the right rear test drive and listen for soun if no sound then the tire has a bad steel belt replace tire if the sound is still present. jack up van and spin tire if no sound is heard replace wheel bearing and if there is still a sound look into brake drum for possible springs or clips that may have fallen into drum causing noise but i would say its more than likely the rear wheel bearing to change that u must buy a new bearing and follow instructions on replacing good