Noise when shifting to next gear. Is this a problem with the torque convertor?

[chris15706]

2017 4x4 Silverado

6 speed 

130k miles. Blackbear tune since new

Changed trans fluid and filter at 105k miles.

 

Right before it shifts into the next gear it makes a whirring noise. I have a quick YouTube video below that you might have to turn up the volume even though the noise is much louder irl.  It started about a year ago but only did it when I pulled the camper. Now it does it all the time. It seems to have trouble holding overdrive as well. I took it to a transmission shop, and they acknowledged the noise but didn't feel like it needed repair right away. They offered to replace the torque convertor and rebuild the trans for around $3600. Is this noise coming from the torque convertor? It doesn't do it if I rev it up in neutral. 

 

Video of noise: 

 

 

 

[chris15706]

That noise was for sure the torque convertor. Last week it started slipping and then wouldn't go into gear at all. Just picked up my truck the other day with a new torque convertor and a rebuild on my transmission. Good times!

[BB68]

Thanks for the follow up. 

 

PS I hope you didnt take it back the the shop that said it didnt need immediate repair. I also hope that they did all the Sonax updates as with them the 6 speed it a pretty damn good trans

Edited June 29, 2023 by BB68