Skip the auto shop - Our mechanics make house calls

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.

A: It could be a failing wheel bearing, while ...

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 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: Car key broken

You will have to have a mobile locksmith or a dealer cut a new key and program it as well. Your vehicle has a complex security system and the keys will need to be professionally programmed in order for them...

Q: Alternator went bad within a 24 hours of installing it

Hi there. It definitely sounds like you may have received a defective alternator; it does happen. Also, have the battery fully charged prior to installing to prevent damage to the new assembly; there is usually a tag attached to new...

Q: Car shaking during acceleration and shifting between gears

This condition sounds like one BMW has noted on a technical service bulletin (TSB) concerning a software issue in the engine control module. There has been an updated software version developed by BMW but you will need to have this...

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...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.