2017 Tahoe/Grinding/Rattling Noise Accelerating from Stop

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VTAK

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I have an issue with my truck that I'm hoping I can get help with. For reference, it's a 2017 Tahoe 4x4 5.3, with 70,000 miles on it.

The problem I have had is that when I first accelerate from a stop, I hear a severe grinding/rattling noise that seems to come from under the Tahoe. It almost sounds like grinding gears in a manual. The sound is there only in the first 5-10 MPH of speed, then once I'm up to speed, it's gone. There was a recent post that was similar for a person with a 2009 Tahoe. The difference is that this only happens when the vehicle is cold i.e. first drive of the day. Then it is gone. I am afraid to take it to the dealer because it would be hard for them to duplicate.
 

Doubeleive

Wes
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all we can do is guess, it could be many different things
what makes you think it would be hard for the dealer to duplicate?
if you can take a video of the noise and upload it to youtube and then post the link here and we can give the best guess
 

Rocket Man

Mark
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Yep we need a video. Kinda hard to even take a guess right now.
 
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VTAK

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Thank you both for your replies. I ended up taking it to the dealership. They found nothing wrong other than improper parts and maintenance done by the place where I previously got the transmission flushed. All fixed! No more noise.
 

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