Help, LaCrosse sounds like a airplane!!!!
I recently noticed that my 2012 Buick LaCrosse (Eco) started to sound like airplane jet, when I accelerate (just pulling off to merging onto a freeway-it starts loud and gets louder, with any kind of acceleration). I noticed it a while back and just attributed the loudness, to the ECO system, now within a week a part, I had a member of my family and a friend, on separate occasions, both question why my 'car was so loud'. I've searched online and based on various comments I found it could be the wheel bearing, transmission, exhaust, battery cooling fan....the information is all over the place. Please help!!