I emailed support but they weren?t able to help much.
P59, 03 avalanche, 4L60 in a 1966 Ford f100
Truck will not make 2-3 shift at WOT. Had issues getting the truck to shift 1-2 @ WOT as well but is working better now. I entered 28.7" and 4.10 gears in the gear/tire wizard. It gives me 2,997.3631 for trans revolutions per mile and 115,246 for VSS pulses. When I do the the math for revolutions per mile with 28.7" and 4.10 gears, I get a different number than the wizard says.
28.7 x 3.14 = 90.118
63360/90.118 = 703.0781
703.0781 x 4.10= 2,882.6205
115,246/40 = 2,881.15
I have made all of the trans shift speed settings the same for 94 and 100% throttle in both the full throttle and part throttle shift speeds with still no success. I've tried moving the shift speeds many times with no success.
I guess my question is, if the wizard is inaccurate like my math shows, could this be the shifting issue? I?ll be the 3rd tuner trying to figure this issue out and stumbled across this inconsistency with the rev per mile and VSS numbers