Well, I yanked the Interceptor Module thingy off my connector that was supposed to help TCC shudder. I've had it a while, and it did help some. But it seems to have lost continuity in one of the leads for the TCC solenoid.
So road test it is. 4th gear came back, TC lockup tried to, code 39 did not. On the highway, revs would slowly settle in like they should, but would rise steadily with more throttle. Scan tool reveals max TCC slip most of the time.
Resistance of the all the solenoids seem to be in range.
Still got the cam code 41...