a straightforward TCC stuck on diagnosis video. the music in the middle is a little hokey, but this guy obviously knows his onions

https://www.youtube.com/watch?v=Vel2mF2-So4

again, just changing the TCC solenoid, doesn't mean the brand new one won't get clogged up with gunk 3 months later, if the fluid is dirty. this can and does happen all the time. the local garage that did mine, said just changing solenoids, they've had it work for a while, then act up again- and the customer is back complaining.
they prefer changing out the entire trans, with a lower mileage one- with less clutch dust buildup in it ! funny but true.
this is also why the professional trans shops, push the high dollar total rebuild for $2000-$3000, including new converter.
it's the only way to get all the crud out.
but I'd also recommend an aftermarket cooler, and inline filter- so it lasts next time.