Hi I have a 2001 Acura TL. I have a power steering noise. I've looked around and came to the conclusion that it's the power steering O-ring. But all videos on replacing them are on the 3rd gen TL's.and the power steering's are different, the 2nd gen looks like a L and the 3rd gen just come straight out. I've replaced the top one, but the one with the tube leading to the reservoir is my problem, I think I found the correct bolt but I can't get it off, could someone explain how big the bolt is/ the best way to remove it.

 

You will likely have to remove the P/S pump in order to get to that o-ring. there will be a 12mm bolt and 12mm nut holding the pump in place undo those and should be able to move the belt out of the way and remove the pump. also you should consider replacing the suction hose which goes from the reservoir to the pump. those tend to cause power steering noise as well because they get rock hard and no longer seal properly which allows air to enter system.