Chevy Technician
GM Grand Master Technician 2007. 9 years Automotive experience, 7 years with GM. Just Answer Mentor
The noise is coming from the front portion of the Tahoe. It begins to roar as soon as I begin to pick up speed. As I get faster, the roaring sound frequency increases, but not at the rate that a wheel turns. I estimate that is makes approximately 1 roar per second if I'm going 30 mph. This noise happens even when I am going perfectly straight.