2007 chevy trailblazer_lt
2007 TB 37,000 miles, just started to notice a gear (whine like) noise coming out of the front end. You can feel a buzzing sensation in the steering wheel at 55 MPH, you can't feel anything with the car parked going through various RPM's, so I think it's safe to rule out the P/Steering pump. It's not tires because it doesn't change noise on different pavements............Any insite as to what to check and best method to check ?????? If it's wheel bearings, is that covered in the powertrain warranty ??????