Best advice for tranny relearn after tuning.

[superhick8160]

I am getting ready to load some tunes on my truck in the next week or so. Dont really have one for sure yet but Im looking at the SPD/Bus Stop or Matts SRL. I know the tranny has to relearn with all the new found power, so what is the best and safest way for it to do so. I use my truck for a DD so I depend on this thing. Also dont want to mess anything up.

[hughesis23]

Just tune it and drive it.. i like to get atleast a couple of 1 thu 6 shifts before i get rough on it.

[colo_dually]

When I change tunes, or revert to stock, with the SCT, I'll give the truck a few days before I start getting hard on the throttle. The SCT allows tuning to be sent directly to the transmission, and not rely on the relearn as much for the new powerband. Street-level tunes, keep it under 2K rpms and get it out on the interstate for a full 0-65/70mph accelleration once or twice. For Race-level tunes, I'll come out of the gas when the trucks trying to shift for the first couple of days as well. These aren't hard and fast rules by any means, but its what I do for my truck. For the most part, just don't try to race the thing for the first few days and you'll be alright.

[Lilpooh]

After you load a tune, drive her normal for about 20-50miles, she should relearn with in that mileage.

If she isn't cooperating, you can try this procedure in post #13.
http://www.thedieselgarage.com/forum...uncoast&page=2

[PGreenSVT]

Frequent runs through the gears at light throttle and then repeated with more throttle input. Or just drive it normally for 35 miles or so and it will learn. Of course those miles need to be in a stop and go environment. 35 miles on the Interstate doesn't teach it much about shifting.