Power Steering pump squeaking and whining..., belt is nice tight, not loose like i thought Options

[eggman40]

At first i thought the belt was loose on the ps pump but its perfectly fine.

However, (before it overheated) when my car stared up in the morning, if i turned the steering wheel at all when cold, a loud whining/squeaking sound and a slight vibration on the steering wheel.

Once the car warms up (about 10 mins of driving) it goes away, but before then, it sounds like bird being beat to death...

It has fluid in the reservoir. Im assuming there is lack of oil at some point in the PS system. Maybe theres air in the system???

I want to change the fluid in there but i wanted to ask if there is proper way to put PS Oil in there so that there isnt any air in the system???

thanks for any help guys.

[Razgriz]

My ST just started doing this recently too. Actually I've been getting a loud groaning/moaning sound not so much a whine. The clerk at a parts store thought it was maybe the fluid not cirulating properly. (air in system) But the resevoir is full and not leaking anywhere as far as I can tell.

I am beginning to think it's the pump itself but is there any way I can check for certain before I lay down the coin for a new one?

Thanks!