[SupraTTturbo2jz]

Whenever I start up my car from a cold start, there is a loud whining noise comming from the steering pump location i believe. The first time it was low on fluid and I filled it up to the line, which made the sound go away but now, the whining noise is back, I heard it could be an o-ring I should replace in one of the screws i think.. Does anyone have any experience dealing with this? thanks