2016 Silverado Z71 Transmission

[flyingfool]

7 hours ago, thundercles said:

UPDATE: The day after leaving the dealership, the transmission completely s*** itself. Was driving home from work and all of a sudden, the engine and tranny would no longer engage and felt like I was in neutral. Tried shifting into manual mode and 4x4 but no joy. Weirdly enough, after sitting for about 15 minutes, I tried again and the tranny hooked up long enough to get me about a mile down the road. I repeated this a couple times until I made it to my driveway. Had the truck towed to a local mechanic and his reaction was similar to GM dealership, all new tranny required at cost of $4,700. 

you might be entering the "overheated" tables on the TCU, sounds fried, did you get to keep the core trans, would love to tear into it for diagnosis. 

Edited October 29, 2020 by flyingfool

[thundercles]

I was watching the trans temp when the failure occurred and it rose quickly but didn't go above 200F. Yea I inquired about keeping the core for inspection but that would of cost even more $.  

[diyer2]

This is why I do premature fluid changes of all fluids. Not saying this would have prevented yours from failing but it may have. And fluid changes won't hurt it.