So I did a few donuts today and when I was finished I discovered I have no power steering. An odd sound comes from the front when I turn (like a loud, rapid clicking), and the engine constantly makes a weird buzzing sound.

Here'* a video of the buzzing sound...

http://media.putfile.com/MOV007245219

I'm going to get it scanned and have a tech look at it at work tonight.

Scanning won't find anything steering related.

Check your fluid.

My fluid is low, but there definately is fluid. I can look down in and see fluid.

Any idea what the noise from the vid is?

Check it with the engine off, but hot, if possible. Don't burn yourself on other hot items since the bottle is somewhat buried on an L36.

You'll get a little bit of pressure out of it when you release the cap, but nothing like you would on a radiator. It won't burn you either.

I edited my last post...my fluid is a bit low, but not gone.

Any ideas what that nasty sound in the video is?

Could be your PS pump. Could be 12 other things making that noise, too.

Could be air in the PS pump. Fill the reservoir to the proper level, and see if it quiets down. Sometimes, PS pumps will buzz like that even when they are full.

Well I filled the fluid up, and that buzz was still there. I have the car in the shop and they should start working on it first thing tomorrow.

Thank god for working at a GM dealer!