Low hum from front end

2004 CHEVROLET IMPALA
124,000 MILES • V6 • 2WD • AUTOMATIC
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THERESA PACKER
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  • 4 POSTS
When idling, there is no noise. Upon driving, about 5 minutes on highway, it sounds like a low deep hum, can heard alittle louder, when I remove my foot from the gas pedal. Should I need to stop, the noise is not there when stopped.
Feb 21, 2020 at 3:02 PM
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JACOBANDNICKOLAS
  • CERTIFIED EXPERT
  • 110,175 POSTS
Hi.

This could be related to tire type, tire wear, or a wheel bearing. When driving and you hear it, is there any change in the sound or pitch when turning?

Here is a link that explains what to look for on a tire that is not considered normal wear:

https://www.2carpros.com/articles/how-car-tires-work

As far as a wheel bearing, here is a link that explains how one is replaced. I'm adding this so you see what I am referring to.

https://www.2carpros.com/articles/bearing-hub-replacement

Since it stops when you stop the vehicle, most likely it is related to one of these two things. Let me know if the noise changes or if you have questions related to the tires.

Take care,
Joe
Feb 21, 2020 at 3:15 PM