Q: Humming sound

asked by on

Had a lower arm control replaced since then have been hearing a loud humming sound coming from front driver side wheel it only stops when pressing on gas pedal

My car has 223924 miles.
My car has an automatic transmission.

It could be a failing wheel bearing, while traveling at say 40 MPH momentarily swerve to the left to unload the left (vehicle weight is moved onto right wheels, of course), and swerve back to the right to load the left side. If the humming noise on the left side, when the left side is unloaded, noticeably diminishes, it’s probably a bad wheel bearing that is causing the humming. If the test is not conclusive, a Mechanic would mount wireless chassis ears (microphones) on left and right spindles, and listen while driving for a noticeable difference in the noise from left to right. If there is a difference (and other causes are not suspected) that is another way to determine if it is a wheel bearing. If the wheel bearings test OK, the source of the noise could be in other rotating elements such as tires, the transaxle, and even the torque converter. Regardless of the location or cause of the noise, a certified Mechanic from YourMechanic could identify the noise and let you know of the required repairs and the cost.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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!
  1. Home
  2. Questions
  3. Humming sound

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: Rear differential maks sound is it too late to change oil ?

If you have a standard differential, 75W-90 gear oil that meets BMW requirements is required. If you have a limited slip differential you have to use 75W-140. Both of these multi-viscosity oils are fine for high operating temperatures. It is...

Q: Car getting too hot.

I would check the coolant reservoir to verify its full, if its low look for leaks around the water pump, radiator, hoses and around the intake as coolant runs through certain parts of it. Other common overheating problems are caused...

Q: My transmission pops out of gear.

The software update that was performed on your vehicle maybe for a vehicle with a different transmission. Check the version of software that was installed in your car and verify what model that it refers to for your transmission.

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...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...