PCM Diagnostics & Tuning HP Tuners | Diablo | Pantera EFI

4l60e tuning

Old 02-12-2019, 03:16 AM
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Join Date: Jun 2017
Posts: 20
Default 4l60e tuning

Hi guys
i have a silvarado 2010 4.8 4l60e it shifts all 4 gears just around 50mph after swapping the tcm and then its gets stuck on 4th with high rpm and speed so no slipping but when i speed up like 120 the rpm will be like 5000 on 4th .
i wantrd to know if i have a tuning problem or mechanical i just rebuild the tranny coz of the same problem and no luck .
here is a cooy of my tune file
Attached Files
File Type: hpt
MY FILE.hpt (962.2 KB, 1 views)
Mohammed Aldabos is offline  

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