Hello
Seeing a power steering leakage, with whining and very hard turning at cold temps. Is this just the oring or could this be something else? Pics are attached...this is a 2008 Acura TL type S

 

I’d recommend trying this

 

How can I tell if its just the oring or the PS pump as well?

 

by replacing one, cleaning and observing.


or while you’re there, just rebuild the thing for peace of mind

 

if you haven't purchased a PS pump yet and still have a problem and don't want to (or having a problem sourcing the parts) rebuild the pump. Get a 06 Acura RL PS pump, they are a direct fit and made better than the 3G TL

 

How exactly did you come to that assessment? I see you replaced yours at 398K miles. That's not exactly a premature life-span

 

The upper hose o-ring has been leaking for a long time by the residue. Change that and the lower one but chances are the pump may have ran dry and will be toast. A rebuild won't help if the vanes are worn (Rebuild = new seals + bearings). I had that happen in my 07 TLS and bought an aftermarket ebay pump.