Drive back to Ohio was great, 22.7mpg on 87 octane and in this heat/thunderstorms I consider it excelent. Anyways, at about 520 miles into the drive I was on low speed highway splits and the tcc was engauging and disengauging like crazy. It was chattering and I have no idea why. Nothing has changed but this morning it was doing the same thing even on a cold engine start. It only does this every once in a blue moon but lately it's been every other time 4th gear and tcc engauged low speed cruising.
Another topic that I believe in unlinked is my 2-3 shift. It clunks more often than not. What is the fix for this and no it isn't my u-joints. The clunk makes me worry but it's been doing this for a LONG time now.
Tell me the trans is dead and I'll go get a T56

you're trans is dead, get a t56 *


* the advice stated here may or may not be accurate, but you'll have a t56 out of it.

just off the top of my head i'd say it was the tcc soliniod, or the torque converter itself.

either tcc LU clutch is chattering(TC) or the LU solenoid is on the fritz.

If your upshift light is turning on/off with the TCC lock/unlock it is probably a VSS problem. If no upshift light on/off then as stated above (TCC solenoid is a common/inexpensive problem).

2-3 clunk is typically caused by the 2/4 band releasing a tad late as the 3/4 clutchs apply.

RBob.

I go for the torque convertor. The Lockup clutch in these trannys are problematic