I have a humming noise coming from the front left tire of my 2007 Chevy Trailblazer. Turning right it gets louder but disappears when turning left. It is constant while driving straight. Was told it may be an alignment issue but tires look fine with no abnormal wear. Could it be a bearing or possibly a hub?
Thanks

 

Yes I would be leaning towards a faulty hub/bearing . They seem to go between 100k and 125K . Have done one of mine so far .