We bought this car new in 2009, July and over the years have had different knocking sounds fixed in the the front end; One was an obvious problem fixed under warranty, a hub bearing that got sloppy. That was found when we asked about a knocking sound. The knocking sound that happened when crossing bumps did not go away after the hub bearing repair. We complained about it through the entire warranty period and they said they couldn't find it. Some time after the warranty ended, they "found" that the steering column intermediate shaft was the culprit for the knocking. Replacing that ended the noise and the steering improved vastly. Some time after that another knocking sound was found to come from a damaged lower control arm bushing. These kinds of problems never occurred in Our 1986 Corolla and Camry and 1998 Corolla. Some other manufacturers' cars showed owner complaints for knocking sounds that turned out to be from..... steering column intermediate shafts, AHA, and those different models all had electric power steering. In the future I suggest to anyone experiencing the same thing, have the steering column checked, and I hope this saves them from replacing struts and other components that, after all, are NOT at fault, but expensive and time consuming operations.