Hey Scotty I have a 2016 Toyota Sienna LE with 55,000 original miles. I bought it a month ago from someone who seemed very well inclined to take care of it and knew a fair bit about cars. He didn't drive it much but it was pretty out of align when I checked it out. Everything else looked good so I made the mistake of taking his word for it that all it needed was an alignment. Under real wind and driving conditions on the way home it was obvious that it needed some other work. It ended up being the front struts. No big deal, the vehicle was a great price. It got new struts and an alignment and it fixed a lot of it. There is still something wrong with the steering though. It drives fine and is stable, but the steering is somewhat loose at times and sometimes feels like it shifts while going over bumps. When I drive straight, the wheel still goes slightly to the right like it did when I bought it (but way less because of the new struts and alignment). When I turn it to the left, it feels like I have to turn it pretty far to get it to go enough left. When I turn right, if I turn half way, the wheel sometimes wants to turn the rest of the way to the right and would happily do it if I let it. I'm not super car savvy but research told me that this model might have electronic power steering, but I'm not entirely sure. It doesn't have a check engine light or any trouble codes. Because I'm not car savvy I had to have the strut replacement diagnosed, in the which my mechanic shop said they couldn't find anything wrong. Usually they are a great shop and always very honest so I want to call this a fluke. Next it went to two auto body shops and finally a specialty suspension place found the problem to be that the struts were bad. None of them found anything else related to this other problem though so I'm not sure what to check next. Any advice?
Did the suspension shop use OEM or aftermarket struts? Assuming this suspension shop installed and aligned your Sienna and know what they're doing, take it back to them. EPS systems can be checked as can the various front end components. They should be able to find what's causing the looseness or play in your steering. If they can't.. have an independent mechanic drive, scan and check the entire front end.I'm not sure what to check next. Any advice?