Over the last couple of months my Chevery Traverse makes a loud humming noise while driving. It only happens at certain speeds. It will happen between 40-45 mph and again when traveling at 60-65 mph. Thoughts?

Any other symptoms? vibration? steering wheel shake? Any error lights? How many miles on this?

Humming noises when driving at higher speeds always makes me think of low fluid in the differential, you’ll get humming type gear noises from low diff fluid levels, so suggest to check that.

Inspect the tires for a wear pattern. Cupped or heel-and-toe wear patterns sometimes develop in rear tires and can be very noisy.

Will try that this weekend and see if it changes.

No other symptoms or error lights. Brakes don’t wobble or screech when being pressed either. There are approx 75,000 miles.

Does the noise go away when you let up on the gas (coast at the same speed)? If it does, it’s not a tire or wheel bearing problem.

OK so tried a couple of different things and checked the tires they are good. The sound still happens no matter if speeding up or slowing down. The sound still happens no matter if in drive, neutral or low. The road material doesnt matter - I went down asphalt and concrete roads. The is no wheel…

I seem to recall another poster here a while ago with a noise described like yours. That turned out to be a problem w/ the engine’s intermediate shaft of the balance shaft, something like that. You’d think if it was that tho, you’d hear it when just rev’ing the engine when parked in the driv…

Sounding more and more like a wheel bearing.

2009 Chevy Traverse Wheel Hub Assembly/wheel Bearing

Maintenance/Repairs

Cavell June 14, 2017, 12:16am 3

When you hear noise at 45mph, downshift from OD to 3rd., or 4th? Don’t know if you have 4spd, 5spd or 6spd? Than motor will rev higher but tires will still be spinning at same rpm. Does noise change?

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2009 Chevy Traverse Wheel Hub Assembly/wheel Bearing

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