Need help Diagnosing Transmission 2016 Silverado 1500 5.3/6L80E

TydeSurfer · April 19

Was driving home the other day and my transmission completely stop responding. Was able to get pulled over and checked the trans temp. It was at 215'. I sat for about 45 minutes until it got back down to 185. Was able to limp it home by slowly getting up to speed and then coasting as long as I could. It made it the last 20 minutes although it was slipping nad temps rose back up to 195. The fluid is burnt it is dark brown and you can smell it just standing next to the truck. I don't see metal in the fluid on the dipstick so, I am hoping it may just be as simple as a fluid and filter change but fear it is probably the TQ or worse the whole shabang. Transmissions are my achilles so any help in diagnosing would be greatly appreciated. I am on a budget as well. Also, I do plan on installing the temp bypass as well as a larger cooler along with whatever repairs need to be made.

newdude · April 19

9 minutes ago, TydeSurfer said:

Was driving home the other day and my transmission completely stop responding. Was able to get pulled over and checked the trans temp. It was at 215'. I sat for about 45 minutes until it got back down to 185. Was able to limp it home by slowly getting up to speed and then coasting as long as I could. It made it the last 20 minutes although it was slipping nad temps rose back up to 195. The fluid is burnt it is dark brown and you can smell it just standing next to the truck. I don't see metal in the fluid on the dipstick so, I am hoping it may just be as simple as a fluid and filter change but fear it is probably the TQ or worse the whole shabang. Transmissions are my achilles so any help in diagnosing would be greatly appreciated. I am on a budget as well. Also, I do plan on installing the temp bypass as well as a larger cooler along with whatever repairs need to be made.

Torque converter has likely been damaging the pump this whole time and wiped the fluid pump out.

Time for a rebuild or replacement.