2007 Buick LaCrosse Q&A

2007 Buick LaCrosse Question: low whining noise at low speed, much like a noise of low power steering fluid

This noise started about three weeks ago. Since then I have replaced the serpentine belt. The noise got louder and increases with acceleration up to forty miles per hour.As far as I can tell the belt tensioner seems to be OK. The noise is constant. -
Answer 1
Try listening under the hood with the engine running. Don't get near any moving parts but try to locate the sound. I suspect a failing power steering pump. Here's a directory link for you: http://repairpal.com/directory?address=21136&car_brand_names=Buick -
Comment 1
Thanks for the advice, sounds reasonable -