2018 Chevrolet 1500 transmission shudder

[Jeanne lorenzo]

Well I have fallen in the pit with the 6L80 transmission on a 2018 Silverado. I cannot find the tech service bulletins about the shudder issue. Can anyone help? Seems obvious the torque converter is the problem 

[newdude]

6 hours ago, Jeanne lorenzo said:

Well I have fallen in the pit with the 6L80 transmission on a 2018 Silverado. I cannot find the tech service bulletins about the shudder issue. Can anyone help? Seems obvious the torque converter is the problem 

 

 

6L80.  There is one but it states to drop the pan and see how much debris is on the magnet.  Don't confuse it for the massive 8L45/8L90 shudder TSB which is just changing the fluid for the latest version of it.  

 

If you've got a 6L80 shuddering, at a minimum it needs a torque converter.  High probability of it needing more though like bad 4-5-6 clutches and possibly a bad fluid pump.