Preston129

iTrader: (3)

Been driving around for a while with my new 3200 converter and notice a surging between 1500-2000 in 3rd when I'm going around 40mph. I realize it's going in and out of lockup, so what do you guys do to alleviate this? Raise lockup to like 50mph or something like that?

FLT

iTrader: (1)

Raising the tables will help your issue here. Some guys will tune their vehicles to not lock in 3rd and only to lock in 4th gear. Vince

Preston129

iTrader: (3)

Thanks Vince, that's a good suggestion and probably a better idea than just raising the lockup speed. Is there any lockup present in first or second or is it only in 3rd and fourth?

FLT

iTrader: (1)

I believe factory programming tcc is only used in 3rd and 4th gears. Actually the trans is capable of TCC function in all ranges including park, neutral and reverse! I would only recommend using it in 3rd and 4th gear only. Vince

06Sierra2

thanks to the op and vince. i have the same issue.

Jeff_383

Need to change your min/max apply tables in your computer. I put mine at 80/90 respectively. Went through the same thing. Raising lock-up speed did nothing for me. One other table I played with too, but I can't remember which one. Min/Max had the most affect.

LS1TRUCKGUY

iTrader: (7)

i had the same issues with mine. mine now only locks up in 4th gear. also raised the apply pressure slightly to aid this

Preston129

iTrader: (3)

Thanks guys these are some good suggestions.

No surging at all in 4th with the apply pressure raised?

krambo

iTrader: (4)

This will most likely fix your issue. I use values of 90 / 100 myself in these tables along with what Vince stated. I only lock in OD.

Circle-D

iTrader: (21)

Tweaking the tune should solve your problems. If you have any further problems, just let us know.

Chris