Thanks for the inpuit guys. Here is my response:
- The P/S fluid level is not LOW. It is exactly where it should be.
- There is a belt spring loaded belt tensioner.
- I don't think the Steering column needs replacement because I have never felt any play when turning, never sensed any slack in the steering, never had any rattling in the column, etc...
Is it possible that this Purring noise is being made by the actual P/S pump?? Maybe I am confused here, but it seems to me that it happens as the P/S fluid starts to move around in the system.