Your Power Steering units pulley has worn or broken bearings. This can harm your vehicle, suggest you have it replaced.
Bent shaft, replace PS pump
Power steering pulley puller Snapon?
Power steering usually powered by that pulley.
That requires the use of a power steering pulley PULLER. ( A special tool ) The pulley is pressed on.
how to remove a power steering pulley on a 1997 Nissan altima
This requires a power steering pulley puller. This puller is designed to remove and install a power steering pulley without damage to the pulley and or pump. Attempting to do this without the puller will result in damaging the pulley or the pump or both.
Begin by removing the power steering pump belt from your 1991 Cadillac power steering pump pulley. Remove the power steering pump pulley retaining bolt. The retaining bolt will be in the center of the pulley.
It requires a power steering pulley PULLER. You can rent them at some parts stores.
Between the power steering pump and the water pump. The only one of two pulleys that is smooth versus grooved.
the power steering reservoir
That requires a special PULLER. Need a power steering pulley Puller.
It is not possible to remove the power steering pulley on a 1997 Buick Le Sabre without removing the power steering pump.