Hi guys
I have a silvarado 1500 2010 4.8 stock engine stock tranny
The previius owner has changed the transmison 4l60e 17pin plug .
Running e38 os12639835 ecu t42 tcm os 24252956
The 3 -4 gears wont shift
With hp vcm i can command 1 2 4 gear as i can hear the solonied clicking and the voltage goes on and off for each command .
3rd gear does not command .
The new 4l60e does not have 3-2 solonied and on my tune file its still enabled.
Am i facing a broken gear or a tuning problem .
Heres my tune file
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