Skip the auto shop - Our mechanics make house calls

Q: Noise coming from rear wheel area

asked by on

As the car speed increases, at about 50 miles per hour, a loud hum comes from the rear wheel area. When the speed get to about 60 the sound goes away. Outside of the 50 mph speed, the car is very quiet. The card does not shake at any speed. Tires have not been rotated for aprox 11,000 miles. I do not see out of the ordinary tire wear on any tires.

My car has 80000 miles.
My car has an automatic transmission.

A: This kind of hum sound generally comes from...

This kind of hum sound generally comes from tires that may be out of balance or which need to be rotated; however, if you have just rotated them recently, this should not be an issue unless you have an odd tread wear pattern developing.

This may also be a bad or failing wheel bearing which can also cause this type of hum sound from metal on metal grinding of roller bearings. These bearings are machined and designed with very tight tolerances and, when they are not properly lubricated, they can generate an enormous amount of heat which is what ultimately causes them to fail.

I would recommend having an expert, such as one from YourMechanic, come to your home to help diagnose the sound that your car is making.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Sounds when turning.

This may be a sign of failing or worn out wheel bearings. A wheel bearing will usually fail due to pitting or small damage on the surface of the rollers or the bearing race. Both the surface of the rollers...

Q: Engine whining in 1st gear & 2nd gear

Hello. It is not the engine whining but the transmission internal bearings that are whining. I would recommend having a mechanic verify the noise is in the transmission and see if the transmission needs internal repairs. Depending on the vehicle...

Q: Constant humming when above 35 mph

With less than 50,000 miles on your 2013 Jeep Patriot, a constant humming above 35 miles per hour is a concern. My first guess would be wheel bearings (like you checked), or perhaps a disc brake pad that was stuck....

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...