Humming noise coming from car as I accelerate

Tiny
KJ0812
  • MEMBER
  • 2008 CHEVROLET COBALT
  • 2.2L
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 135,000 MILES
My car just recently started to make a humming noise while I accelerate. It is not loud sound, but it is noticeable.
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Tuesday, October 11th, 2016 AT 4:18 PM

14 Replies

Tiny
SATURNTECH9
  • EXPERT
So can you you hear the noise coasting in neutral? If not this can be a sign of the front bearing hubs going out here is a guide that will walk you through the repair with diagrams below to help you see how the job is done on your car.

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

this guide can help as well

https://www.2carpros.com/articles/car-howling-noise

Check out the diagrams (Below). Please let us know what you find. We are interested to see what it is.
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Wednesday, October 12th, 2016 AT 6:42 AM
Tiny
KJ0812
  • MEMBER
No only when I put my foot on the accelerator. It does not start to make the sound until 2000 rpm's, but it is not a very loud sound. I have seen posts about wheel bearing but from all the sounds that people described they did not fit the sound my car was giving off. It is not a whine, it is really like a vibration/humming sound and I have located it to the right of the car, and it is not the radio I have tested that.
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Wednesday, October 12th, 2016 AT 11:18 AM
Tiny
KJ0812
  • MEMBER
My car recently had to get a engine swap because my old engine blew. It is the same engine I put in and then I had Chevrolet check out the problem which was causing the engine to not spark upon start up, ECM and wiring needed to be changed/fixed, but I do not know if they ever noticed this sound or just ignored it. My wheel bearings were also changed 500 km ago (before engine swap).
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Wednesday, October 12th, 2016 AT 11:25 AM
Tiny
SATURNTECH9
  • EXPERT
If it is in the right rear the only thing I can think of is the tire or wheel bearing. Just because the wheel bearing was replaced do not count it out for making noise. Parts these days anything is possible. Been down that road way too much with brand new parts out of the box bad or they do not last long and go bad again.
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Wednesday, October 12th, 2016 AT 12:47 PM
Tiny
KJ0812
  • MEMBER
I finally got a new hub for $154.00 and installed it on the passengers front and the noise is gone! Wish I did it earlier :)
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Wednesday, October 12th, 2016 AT 6:58 PM
Tiny
SATURNTECH9
  • EXPERT
Glad you could get it fixed, that kind of problem can be tough. Please use 2CarPros anytime we are here to help.
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Wednesday, October 12th, 2016 AT 10:01 PM
Tiny
LEBO WAGA SILK
  • MEMBER
Hi there, I am also experiencing a humming sound when I accelerate. What could be the problem?
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Saturday, June 30th, 2018 AT 5:36 AM
Tiny
KEN L
  • ADMIN
Hi, we just went through his on a another car. It was the final drive carrier bearing inside the transmission, but to be sure please make me a short video of the noise and upload it here in your reply we have the capability. That way I will know for sure.

Cheers, Ken
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Saturday, June 30th, 2018 AT 12:04 PM
Tiny
CLURE
  • MEMBER
  • 2006 CHEVROLET COBALT
  • 4 CYL
  • FWD
  • AUTOMATIC
  • 27,000 MILES
I bought this car new. At about 20K miles the humming noise began. It sounded like from the tires. I was told about 20,000 miles is the limit. The car came with Perelli al weather tires 205/50R17. At 27,000 miles, I changed the tires to Yokohama 205/50ZR17 93W AVS ES100. The car handles easier, but the road noise humming is still just as loud as before. Any ideas?

Thank you.
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Tuesday, October 1st, 2019 AT 3:50 PM (Merged)
Tiny
BUZZSAW
  • MEMBER
When your driving it and the noise is apperant, try doing what they do in nascar to warm up there tires, moving back and forth, ( do it safely) does the pitch change or stay steady

if the pitch changes, its a bad bearing somewhere, if not its probally the tires
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Tuesday, October 1st, 2019 AT 3:50 PM (Merged)
Tiny
CLURE
  • MEMBER
When your driving it and the noise is apperant, try doing what they do in nascar to warm up there tires, moving back and forth, ( do it safely) does the pitch change or stay steady

if the pitch changes, its a bad bearing somewhere, if not its probally the tires[/quote:8152de7b79]

Thank you for the response. I tried the moving back and forth and thought there was a difference in the pitch but it was difficult to do a true testing. I had this checked out at a GM dealership and found in fact it was a bad wheel bearing. In retrospect, the wheel bearing went out at about 20,000 miles.

My experience with a 2006 Chevrolet Cobalt has been unfavorable. I have replaced the sunroof as the motor went out at 10,000 miles and I only used it about 12 times. The gear shift has been replaced 2 times (within 2 years). Park Chevrolet (Huntersville, NC) refused to replace it the 2nd time claiming I had spilled a drink on the shifter and that was why it was shifting badly (again). This was NOT true and was pointed out by another GM dealer and they DID replace it and lastly the wheel bearing went out. All this withing 20,000 miles on this vehicle. If there is such a thing as a "Lemon Law", I think this one fits my vehicle.

Thank you for your diagnosis, it was correct!
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Tuesday, October 1st, 2019 AT 3:50 PM (Merged)
Tiny
BUZZSAW
  • MEMBER
When your driving it and the noise is apperant, try doing what they do in nascar to warm up there tires, moving back and forth, ( do it safely) does the pitch change or stay steady

if the pitch changes, its a bad bearing somewhere, if not its probally the tires[/quote:b8b68aa64f]

Thank you for the response. I tried the moving back and forth and thought there was a difference in the pitch but it was difficult to do a true testing. I had this checked out at a GM dealership and found in fact it was a bad wheel bearing. In retrospect, the wheel bearing went out at about 20,000 miles.

My experience with a 2006 Chevrolet Cobalt has been unfavorable. I have replaced the sunroof as the motor went out at 10,000 miles and I only used it about 12 times. The gear shift has been replaced 2 times (within 2 years). Park Chevrolet (Huntersville, NC) refused to replace it the 2nd time claiming I had spilled a drink on the shifter and that was why it was shifting badly (again). This was NOT true and was pointed out by another GM dealer and they DID replace it and lastly the wheel bearing went out. All this withing 20,000 miles on this vehicle. If there is such a thing as a "Lemon Law", I think this one fits my vehicle.

Thank you for your diagnosis, it was correct![/Quote:b8b68aa64f]

for a lemon law it has to be the same problem 4 times in for the same repair or they cant fix it ( same prob )
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Tuesday, October 1st, 2019 AT 3:50 PM (Merged)
Tiny
GARY CARTER
  • MEMBER
I have a humming vibration noise when I first got my truck. I replaced the rear axle bearings and front wheel hubs and that sound didn't go away it actually got worse. Any thoughts? I can also feel something jult when I'm braking not just anywhere but only with my foot on the brake pedal, I've replaced pads, roaders, even calipers on all 4 sides.
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Sunday, December 29th, 2019 AT 12:49 PM
Tiny
KEN L
  • ADMIN
Truck? Cobalt is a car, if you are working on something other that is model CHEVROLET COBALT please start a new question.

Please post your new question here, you must be logged in.

https://www.2carpros.com/questions/new

Cheers, Ken
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Monday, December 30th, 2019 AT 5:26 PM

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