With car-buying trends turning towards economical compact cars like the Nissan Sentara, for example. Sometimes because of high demand, car dealerships run out of stock and need to backorder parts. This can put a strain on you, both emotionally and financially. You want to get your car fixed sooner rather than later and not have to spend a lot of money. When it comes to Nissan quick struts, tires and brakes--components that are essential to the safety and function of your Nissan--it's not always wise to push the repair off into the unforeseeable future. Purchasing Nissan shocks and struts online can often be quicker than waiting for backorders to arrive. Check out the shocks, and struts to make sure that they haven't come loose, or nothing has broken.  Also, make sure that they are the correct replacement parts.  I have seen parts such as these replaced with Toyota quick struts that were listed as replacements, but were not the proper length.  If they are too short, this can cause your problem.If these all seem to be ok, then I would check out the power steering pump, if it has power steering.
If this doesn't locate the problem, then I would go to a reputable front end shop, and have the Toyota shocks and struts.  When this is done, they can check the ball joints, along with the steering components to see if there is broken part in the steering system.  B2C | B2B2C