tlaw91 Posted February 4, 2020 Share Posted February 4, 2020 Would anyone be interested in a small write up of how and why a 6 speed explodes? Just had one today I took pics of and thought about doing a ‘how come’ on why they go bad. Sent from my iPhone using Tapatalk 2 Quote Link to comment Share on other sites More sharing options...
JimCost2014 Posted February 4, 2020 Share Posted February 4, 2020 Yes, maybe something on the 8 speeds too. Pictures would be great also. Quote Link to comment Share on other sites More sharing options...
tlaw91 Posted February 4, 2020 Author Share Posted February 4, 2020 Ok great! Just making sure I wouldn’t be wasting my time. I have to do it on the computer because Tapatalk won’t let me upload more then 1 picture.What do you want to know about the 8 speed? Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
MaverickZ71 Posted February 4, 2020 Share Posted February 4, 2020 Got my popcorn ready. Quote Link to comment Share on other sites More sharing options...
Snowcamo Posted February 4, 2020 Share Posted February 4, 2020 Absolutely. !Sent from my LG-G710 using Tapatalk Quote Link to comment Share on other sites More sharing options...
Ozer Posted February 4, 2020 Share Posted February 4, 2020 Im sure the GM engineers would like to know as well so they can fix the problem for good haha 1 1 Quote Link to comment Share on other sites More sharing options...
RE1 Posted February 4, 2020 Share Posted February 4, 2020 Yes Quote Link to comment Share on other sites More sharing options...
Fsu11 Posted February 4, 2020 Share Posted February 4, 2020 lifted, big tires, undergeared, soft shifts.......... Quote Link to comment Share on other sites More sharing options...
newdude Posted February 4, 2020 Share Posted February 4, 2020 6L80 so either converter failed and took the pump, or the 4/5/6 housing broke, or the carrier went. Quote Link to comment Share on other sites More sharing options...
tlaw91 Posted February 4, 2020 Author Share Posted February 4, 2020 15 minutes ago, newdude said: 6L80 so either converter failed and took the pump, or the 4/5/6 housing broke, or the carrier went. This one is the popular converter failure! I thought it may be cool to add some pictures for context. Are you a technician as well? Quote Link to comment Share on other sites More sharing options...
newdude Posted February 5, 2020 Share Posted February 5, 2020 (edited) 3 hours ago, tlaw91 said: This one is the popular converter failure! I thought it may be cool to add some pictures for context. Are you a technician as well? Do it post em up! Not a tech, but I sure help the crap out of them by getting the parts they need We just did 3 or 4 converters in the last 6 months, one got a pump, two more got whole transmissions. Most of the ones that fail we've seen are 2016-2017, some at 40-50k miles. Some of the 2014-2015 trucks had 100k or more with an issue or two. We've also put a couple converters in 6L90s too, 2015-2017. Almost makes me think that there was something going on with their converter suppliers during those 3 or so years. Surprisingly, I've seen only 2 or 3 8 speeds come out before they started the flush program that got new converters. The rest of the 8 speeds have just been the fluid swap. Its clunky and has its quirks, but they seem to hold up where I work. Edited February 5, 2020 by newdude Quote Link to comment Share on other sites More sharing options...
tlaw91 Posted February 5, 2020 Author Share Posted February 5, 2020 Do it post em up! Not a tech, but I sure help the crap out of them by getting the parts they need [emoji4] We just did 3 or 4 converters in the last 6 months, one got a pump, two more got whole transmissions. Most of the ones that fail we've seen are 2016-2017, some at 40-50k miles. Some of the 2014-2015 trucks had 100k or more with an issue or two. We've also put a couple converters in 6L90s too, 2015-2017. Almost makes me think that there was something going on with their converter suppliers during those 3 or so years. Surprisingly, I've seen only 2 or 3 8 speeds come out before they started the flush program that got new converters. The rest of the 8 speeds have just been the fluid swap. Its clunky and has its quirks, but they seem to hold up where I work. THATS WHAT IVE BEEN SAYINGThey’ll shift like a teenage girl learning stick and rattle your teeth out of you don’t do fluid changes but they do NOT come apart. See my other post for the write up on the 6 speeds!Sent from my iPhone using Tapatalk Quote Link to comment Share on other sites More sharing options...
StevesSilverado Posted February 5, 2020 Share Posted February 5, 2020 Working in a trans shop I saw the pressure regulator valve not working/ sticking. That caused the filter to swell or split. It starved the converter of fluid ruining the converter and pump. Quote Link to comment Share on other sites More sharing options...
79Mercy Posted February 5, 2020 Share Posted February 5, 2020 I have a question for you guys that work on these everyday, i personally work on Mercedes for a living. Anyways i have a 2018 1500 with the 6 speed, currently has 12k on it, i purchased it new and pretty much ever since day one it has had a shudder, sometimes a more abrupt jerk when gently accelerating, but usually just a soft shudder sensation. Happens usually from 50-80 and only when the torque converter is locked up, press pedal down a hair more TC will unlock and shudder/jerk will go away. I have complained about it twice at the dealer, they say "operating as designed". My question is if there is a fix for this, or would even a new converter have a slight shudder to it, is it really the nature of the beast? thanks Quote Link to comment Share on other sites More sharing options...
Lsgun1 Posted February 5, 2020 Share Posted February 5, 2020 Is AFM activating/deactivating when it does it? Quote Link to comment Share on other sites More sharing options...
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