I got a 2012 2500hd 4x4 with the l96 and 6l90 trans im having trouble getting it tuned its shifts late hits rev limiter before shifting and stops pulling at around 80mph..drives semi normal under reg acceleration but wot its sucks..
I got a 2012 2500hd 4x4 with the l96 and 6l90 trans im having trouble getting it tuned its shifts late hits rev limiter before shifting and stops pulling at around 80mph..drives semi normal under reg acceleration but wot its sucks..
Transmission also runs hotter than normal..normally i was around 180deg now im at 210 deg
Post tune.
How old is the fluid?
How many miles on it? A fluid change and making sure the cooler has great airflow to it can surely help reduce the temps.
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.
Fluid has maybe 10k miles on it and truck has 202k...the issue im having is it redlines before it shifts and sometime it wont even shift until i let off also once i get to around 80mph its doesnt seem to want to go any faster..mods are 4.56 gears from a 3.73 and 35 tires on a 22x14 wheel and exhuast..i dont ha e access to the tune at the moment but the tune is the issue cant seem to get it right
Tune Not available at the moment but it just got tuned today before tune it was fine besides speedometer being off by 10mph
Well who ever tuned it needs to fine tune the shift mph speeds and shift speed itself for the large change in gear ratio and tire size.
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.
Reply With Quote