I took 2 trucks to get tuned a 2013 & 2014 for some reason when you go wot it down shifts hard any one had that kind of problems how can i get it fixed thanks i just bought hptuners need help fixing
I took 2 trucks to get tuned a 2013 & 2014 for some reason when you go wot it down shifts hard any one had that kind of problems how can i get it fixed thanks i just bought hptuners need help fixing
could be a few issues. these transmissions actually had issues with hard downshifts from the factory, that "learn" themselves softer during coasting downshifts. Another issue is the tuner may have shift pressures, too high, or shift timing too low. If your not familiar with the tuning of these trans, it can be quite complicated to get the right feel. HAve you discussed this with the tuner?
Michael Bray
Rusty Knuckle Garage
Slidell, Louisiana
20yr Master Tech.
Advanced Level Specialist
Custom Car Fabrication, Customization, High Performance.
GM World Class Technician
Shop Owner
Also disabling torque mngt will do this. It's best not to disable TM on a 6L80e.
2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.
If you don't post your tune and logs when you have questions you aren't helping yourself.
Really , let me check that out hope that fixes it thanks for your help ,Yes i did he said he didnt what else to do he said he had tooken al of the shift pressure of that he didnt know what else to doOriginally Posted by mbray01
Ok let me check that out to i hate how it feels , feels like its gonna break something, thanks for your help
If you can post the tune here I'm sure we could help you out even more.
Sure let me check how i can upload it thanks
When you reply, click "go advanced" then you'll see the section that will allow you to manage attachments.
Ok will do asap
here are the 2 files that im having trouble with any help will be appreciated
Both of those tunes have almost no changes to them. The first one has a 100% stock transmission calibration. I compared it to my 2012 stock file and nothing is different. Nothing that would make it shift hard or worse than it is right now.
The tune has some power enrichment changes, they removed timing for some reason. Like the factory tune has more timing under load than this one does and those themselves aren't even that crazy if you are running mid grade or premium fuels. Also they disabled some torque mngt on the engine side.
The 2014 file should have some of the torque mngt settings put back to stock-ish. I wouldn't max out the peak torque setting.
Almost makes me feel bad that you payed for this is, if you did. You surely did not get your moneys worth.
2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.
If you don't post your tune and logs when you have questions you aren't helping yourself.
Damn that sux bro i guess i got screwed it did some difference but i guess it shouldve been better thanks for your help is well appreciated
The shifts would probably soften up a bit if the minimum spark tables were set back to stock on both trucks.
Thanks
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