Rebiult 6L80e converter unlock and lock 5th and 6th

[Jonblarc7]

Cammed L86 just had the trans rebuilt with stock stall. With the same tune as before, now while cruizing down the highway. If I just barely back off the throttle the converter unlocks and my Rpm's go up a few hundered until I give it more gas and it desides to lock up again. I have lock up disabled in 1-4.

I tried lowering the release RPM by 3 mph but that didn't do anything. It didn't have this problem before I had the trans rebuilt.

[Tfoggy]

Do a trans adapt quick relearn. Also check your lockup tables for your 5-6 gears.. Maybe they got changed ... Look at your TPS min value for lockup and unlock
I set mine to 1%... So , if you go OFF the throttle it will unlock as it is supposed to. You don't want to cruise around locked up at ZERO throttle

[Jonblarc7]

Thanks I'll do the trans adapt quick relearn.

My TPS is set to 0% and was the same before the rebiuld. They set the tune back to stock and I hated the way it drove. So I put my TCM tune back in it.

The TCC release in 6th at 30% throttle is 53 mph I think. If I just barely lift my foot off the throttle in 6th at 75 mph it unlocks the converter. I would thing it wouldn't comand the unlock until 0% throttle input or at 30% throttle the speed decreased to 52 mph.

Right????

[Jonblarc7]

The Preset and Reset didn't work. It still unlock as soon as I back off the throttle the smallest percentage.

[Hpsonny]

like to know on this as well. My car does the same thing , like it hunts for the converter unless i give it more throttle

[Jonblarc7]

I'm afraid it might be something in the converter But bumping it back to the top for some help.

[Alvin]

Have you double checked fluid level. I think its a good idea to recheck fluid after a few days of driving.. They almost always work out a big air pocket or something.

[Jonblarc7]

Just check it and it way over the full mark. Probably 3/4" over the hot mark.