ahl395
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So my 6R80 is on it's fourth failure, as of tonight. Three of those failures were while it was "built"
1. May 2017: Broke torque converter, built trans with Circle D, shaft, clutches.
2. April/May 2018: Broke trans oil pump (locked up). Oil pump replaced, damaged converter repaired, clutches replaced.
3. June/July 2018: Main snap ring broke in trans, erratic shifting, lost reverse, crazy whining noises.
4. Sept 2018: Erratic shifting, similar whining noises, lost forward and reverse. UPDATE: Forward planetary broke
This time it also has a DTC. P07AA: Transmission Friction Element E Performance/Stuck Off.
Worth noting that the first failure was at WOT, every one after that has been at light/moderate acceleration. Repair 1 was done by a different shop than 2 and 3. Converter is understandable, the rest are extremely rare and unexplainable.
Shop admitted partial fault for the broken snap ring, but I don't know what's going to happen this time. On one hand I feel like it's install error as it was fine for nearly a year and once they opened it up it's broken twice within 2 months. On the other hand I feel like this transmission is a lemon as I've had crazy problems on a street only car that I've never seen anybody else have on higher powered track cars.
This thread is really to reach out and see if anybody has any ideas or opinions. I don't want to do a TH400 as this is a street/daily car. I feel like getting a brand new PBH 6R80 and scrapping this whole trans, but money is tight. I don't feel like putting any more money into this transmission as I feel it's inevitable it will break again.
I feel I treat it very well. I wait until temps are warmed up before driving hard, I don't neutral drop it or do ridiculous shit to it, don't even launch it very hard.... so I don't see how I could be causing this. A coworker of mine suggested the +500lbs of added weight in my car (~4200lbs) is killing the trans but I find that hard to believe as that's not much different than having a few passengers and the stock 6R80 is used for towing in F150s
Thanks for any opinions.
1. May 2017: Broke torque converter, built trans with Circle D, shaft, clutches.
2. April/May 2018: Broke trans oil pump (locked up). Oil pump replaced, damaged converter repaired, clutches replaced.
3. June/July 2018: Main snap ring broke in trans, erratic shifting, lost reverse, crazy whining noises.
4. Sept 2018: Erratic shifting, similar whining noises, lost forward and reverse. UPDATE: Forward planetary broke
This time it also has a DTC. P07AA: Transmission Friction Element E Performance/Stuck Off.
Worth noting that the first failure was at WOT, every one after that has been at light/moderate acceleration. Repair 1 was done by a different shop than 2 and 3. Converter is understandable, the rest are extremely rare and unexplainable.
Shop admitted partial fault for the broken snap ring, but I don't know what's going to happen this time. On one hand I feel like it's install error as it was fine for nearly a year and once they opened it up it's broken twice within 2 months. On the other hand I feel like this transmission is a lemon as I've had crazy problems on a street only car that I've never seen anybody else have on higher powered track cars.
This thread is really to reach out and see if anybody has any ideas or opinions. I don't want to do a TH400 as this is a street/daily car. I feel like getting a brand new PBH 6R80 and scrapping this whole trans, but money is tight. I don't feel like putting any more money into this transmission as I feel it's inevitable it will break again.
I feel I treat it very well. I wait until temps are warmed up before driving hard, I don't neutral drop it or do ridiculous shit to it, don't even launch it very hard.... so I don't see how I could be causing this. A coworker of mine suggested the +500lbs of added weight in my car (~4200lbs) is killing the trans but I find that hard to believe as that's not much different than having a few passengers and the stock 6R80 is used for towing in F150s
Thanks for any opinions.
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