My car has been in and out of the dealership since July because of steering noises. I got a call on Thursday that a new steering pump was just released (that day) by GM. It was actually in the shop again for this. They have put the new steering pump on and claim it's very quite. I haven't picked up the car yet, but wanted to let everyone know about the new steering pump. If your having lots of noise from the steering pump, contact your dealership about the new pump. I'll try to post a part number if my invoice has it on Monday.
Melissa
Melissa