Bought this van used at a gm dealership. heard the "rattling" from the front end, asked the dealer to check it and they found nothing. finally 3 years later and after several complaints to the dealer, who could never find a problem, took the van to get new tires and they discovered the problem. Why a gm mechanic could not find the problem and a tire tech could is beyond me. Anyway I gladly paid the tire shop to fix my issue that the GM dealer mechanic could not.