6L80E Torque Converter failures on K2XX platform (2014-2019 GM Truck) have skyrocketed & will eclipse Converter failure rates in GMT900 platform (2007-2013 GM Truck) by a huge margin.
I'd like to know how many K2XX truck owners we have here with over 175,000 miles on their original 6L80E?
I have one customer with well over 200,000 on his 2015 Silverado.....But I installed a Billet Front Twin Disc Converter preemptively. Interestingly enough I had the original converter cut open & no discernable wear was found. He is a VERY aggressive driver that likely uses 3/4 to full throttle more than I've ever seen! The TCM ramps up TCC apply pressure almost linear with Calculated Applied Torque.
I believe GM was chasing Fuel Economy by providing barely adequate TCC apply pressure & was chasing reduced NVH with the constant TCC slip in V4 mode that's more aggressive than was calibrated in the AFM GMT900 platform.
Been talking with my Converter builder about adapting a TMBX 300mm 4L60E Converter to fit in place of a JMBX 300mm 6L80E Converter, There are just enough differences where it's not financially feasible to train his staff & convince other shops to spend $70 more per converter when a rebuilt JMBX will make it through warranty.
Sonnax has a Billet Front Twin Disc kit....But it's NOT cheap, Especially when added to a already very expensive job where the Pump, Stator & Coolers need to be replaced at bare minimum beyond all the Soft Parts that normally get replaced during a rebuild.
This is the 5th K2XX truck I've had come in the last 30 days with a failed converter & I have 3 more waiting to be diagnosed. I don't even test drive them anymore......I pull the pan FIRST, No sense in pumping anymore shrapnel through the unit. Then I have another 5-6 calls per month from folks that can't wait on me to get to their truck, Which is fine with me as I don't deal well with antsy folks seeking instant gratification.
In a perfect world, Owners would have a Billet Front Converter & a Custom Tune done before/at 100,000 miles OR any 6L80E that's free of shrapnel in the pan.
If you feel any sensation that feels like you're running over a Rumble Strip.....That's likely your TCC dying.
I'd like to know how many K2XX truck owners we have here with over 175,000 miles on their original 6L80E?
I have one customer with well over 200,000 on his 2015 Silverado.....But I installed a Billet Front Twin Disc Converter preemptively. Interestingly enough I had the original converter cut open & no discernable wear was found. He is a VERY aggressive driver that likely uses 3/4 to full throttle more than I've ever seen! The TCM ramps up TCC apply pressure almost linear with Calculated Applied Torque.
I believe GM was chasing Fuel Economy by providing barely adequate TCC apply pressure & was chasing reduced NVH with the constant TCC slip in V4 mode that's more aggressive than was calibrated in the AFM GMT900 platform.
Been talking with my Converter builder about adapting a TMBX 300mm 4L60E Converter to fit in place of a JMBX 300mm 6L80E Converter, There are just enough differences where it's not financially feasible to train his staff & convince other shops to spend $70 more per converter when a rebuilt JMBX will make it through warranty.
Sonnax has a Billet Front Twin Disc kit....But it's NOT cheap, Especially when added to a already very expensive job where the Pump, Stator & Coolers need to be replaced at bare minimum beyond all the Soft Parts that normally get replaced during a rebuild.
This is the 5th K2XX truck I've had come in the last 30 days with a failed converter & I have 3 more waiting to be diagnosed. I don't even test drive them anymore......I pull the pan FIRST, No sense in pumping anymore shrapnel through the unit. Then I have another 5-6 calls per month from folks that can't wait on me to get to their truck, Which is fine with me as I don't deal well with antsy folks seeking instant gratification.
In a perfect world, Owners would have a Billet Front Converter & a Custom Tune done before/at 100,000 miles OR any 6L80E that's free of shrapnel in the pan.
If you feel any sensation that feels like you're running over a Rumble Strip.....That's likely your TCC dying.