Since January I have replaced the TTVA because of codes...didn't work CEL came on and has been intermittent since. Lately though, it has stayed out and shifted normal.

Recentley, on kickdown it seems to freewheel and with a quick on/off of the throttle goes to normal kickdown mode and drives great. This is intermittent as well.

So I just did service with filter, band adjustment, new govenor pressure sensor, and new govenor pressure solenoid (replace back in @60k for hunting at low speed). And now, all this was done 65 miles ago, the trans temp light and tow/haul light come flashing and no shifting. Stop shut off truck and restart, runs and shifts great.

Any ideas on maybe broken wiring or any other electrical component going bad. On service, fluid was clean and no debris in pan.

Need help, camping season begins in 4 weeks!!!!!!!!