Just as the title says, my 4T65E-HD is freshly rebuilt (approx 10k on it since rebuild, from a 98GTP); and recently I've noticed two things.
Sometimes it seems to want to hold on to gear a little longer than it should. When I'm accellerating a little quickly, then start coming off the gas, normally it would shift, occassionally it holds on to that gear a bit longer before dropping.
The major issue I'm having is between shifts. Notably between 2nd and 3rd. If I'm accellerating really slowly from a stop, it'll shift smooth as ever into second, then the torque-lockup thingy happens, and that just SLAMS in. Big huge jerk when that goes, a horrible feeling. I'm afraid it's going to bust something. Then it'll shift into third just fine.
If I'm GIVING it off the line, 1/2 throttle or greater, it works just fine. Haven't noticed an issue with it under medium-heavy accelleration when it goes in, just under really light accelleration.
Any ideas? It's driving me nuts, and I would like to fix it before I break something. Thanks guys!
