carringb wrote:
I agree, although it seems to be working other than causing more powertrain heat.
I don't think line pressure will help. It's just not enough surface area in the torque converter clutch. The diesel and the gas motors don't use the same torque converters because of their requires stall speeds, and clearly they must have changed more than just turbine profiles.
TSB is GM#14745. Sorry I can't post the text, since I'm no longer subscribed to any repair databases. Applies to 2010-2014 models. 2015 must have an upgraded T/C, and the company that makes the purple ones has an upgrade as well.
I see. Wonder if more clutches would fit in there. I know 47RE rebuild kits offer better friction material AND more clutch plates.
Guess I'm just a bit surprised by the whole thing. Technically, the 47RE is only a "700 Nm" rated transmission, and the 6L90 is 720 Nm.
