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3-2 super hard downshift on old and new built 4l60e tryed everything please help
hi first thing first.im new to tuning.i have a 03 silveraldo supercharged cammed with a performabuilt 4l60e black edtion with 2800 stall 10inch fti triple disk converter.my problem that im having that seems like no one else is having is that my tuner must have seen wile he was doing my e85 tuning on old transmission.is that my 3-2 down shift damn near chirps tires it shifts so hard. i got hp tuners and seen in my part throttle under shift scheduling he has it were my 3-2 and my 2-1 are both at 10 in the down shift so its skipping 2 gear down shift all togather.iv tryed to put it right and it shifts to hard i cant find anything anywere else that would cause this. when its set like my tuner has it i can manually down shift with shifter and its fine.but if i put it the way its suppose to be then even when i try to downshift manually it will be so hard its scary.im all out of ideas.any help would be great.im wondering if i should buy a transmission controller but id rather not at this time...thanksAttachment 123911