Blog

Your Outback Hums Over the Waldo Grade — Wheel Bearings Make That Noise

Posted on September 19, 2026 by masterwpuser

It came on so gradually you blamed the tires. Somewhere around 45 mph on the climb up the Waldo Grade there is a low hum, and it grows with speed. Then you change lanes, and the noise gets louder one way and quieter the other. That is a wheel bearing, and it is one of the few noises a car…

Read More