4L80E Tune
Thread Starter
Joined: Jul 2003
Posts: 1,109
Likes: 28
From: Hampton Virginia
4L80E Tune I have a 4L80E with a shift kit. I had someone do a tune on it before I had it rebuilt and Im not sure if the pressure settings or any of the other settings are stock or not. It shifts very hard during upshifts and when I go full throttle and it downshifts. I also do not have a stock tune to compare to anymore. Here is the tune if somebody could take a look at it and let me know. The vehicle is a 2005 Silverado 2500HD 4X4.
TECH Enthusiast
Joined: Jan 2019
Posts: 677
Likes: 490
From: Roxana, IL
Here is a 2005 Silverado 4L80E stock tune file
Use a compare in VCM editor, looks like there are a lot of differences. Also look to see if torque management has been turned off.
Talk to the transmission builder to see how it got built. I build to suit the engine HP & Torque you tell me you have or are shooting for.
A tuned PCM & a built for xx HP/Torque will create what you described.
Use a compare in VCM editor, looks like there are a lot of differences. Also look to see if torque management has been turned off.
Talk to the transmission builder to see how it got built. I build to suit the engine HP & Torque you tell me you have or are shooting for.
A tuned PCM & a built for xx HP/Torque will create what you described.
Thread Starter
Joined: Jul 2003
Posts: 1,109
Likes: 28
From: Hampton Virginia
Here is a 2005 Silverado 4L80E stock tune file
Use a compare in VCM editor, looks like there are a lot of differences. Also look to see if torque management has been turned off.
Talk to the transmission builder to see how it got built. I build to suit the engine HP & Torque you tell me you have or are shooting for.
A tuned PCM & a built for xx HP/Torque will create what you described.
Use a compare in VCM editor, looks like there are a lot of differences. Also look to see if torque management has been turned off.
Talk to the transmission builder to see how it got built. I build to suit the engine HP & Torque you tell me you have or are shooting for.
A tuned PCM & a built for xx HP/Torque will create what you described.
Thread Starter
Joined: Jul 2003
Posts: 1,109
Likes: 28
From: Hampton Virginia
I might be blind or maybe they are calling it something else but I do not see it in there anymore.(Disregard)
Found it! wasn't looking in the right place
Last edited by EDS01SS; Sep 2, 2024 at 06:24 AM.
