is200 Sterring problem

[iTzAlvin]

Hi, I'm new in this forum. I just purchased an IS200 a couple weeks ago, and I have to do general mantainance stuff. 

But I've encountered a problem in the steering. It presents the following symptoms: 

    - The steering is a bit hard and tight

    - The steering is not straight(I guess I'll just have to do an alignment and that will be it )

    - The steering doesn't come back to the center smoothly and even at some point it doesn't even come. (The power steering fluid levels are alright, but it is quite dark, so I guess I should just flush it                right?)

    - The powersteering pump's pulley is a bit bent, it doesn't spin straight, but it doesn't present any issue with the belt or anything, it doesn't make grinding noises.

 

I've got a receipt from the previous owner which says that the pump has been replace not a while ago, but that pump came from a scrapyard. 

I hope that it isn't the steering rack or the pump that needs to be replaced. If you guys know anything about this issue, or have some clue about it I would really appreciate your help. 

Thanks