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While towing / transmission bearing hum

steve grausgruber
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steve grausgruber New Member

steve grausgruber

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2024 5.3 LT , 10 speed auto. 4000 miles on truck  This happens in drive-tow and not in drive tow. Towing a 6000 lb camper, anywhere from 65 mph - 70mph  RPMs between 1500- 1800. I believe it's in 10th gear, a humming noise and slight vibration in the seat and steering wheel. It took me by surprise. It sounds like you're on a rumble strip without the rumble strip vibration.  It goes away when you accelerate . Hoping this is normal? I understand the high gear thing , doesn't do it just going down the road with no trailer.  Chevy service says to bring in with camper so tech go go for a ride with me. Anyone else experience this?

 

Thanks   Steve

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