How to: drop, clean, and reinstall the 2nd Gen transmission pan and filter

I think it's fine. When I redid the check, I capped it while it was still flowing pretty heavily. The initial hard stream stopped, but it was still flowing quite a bit, and I capped it. At somewhere between 110 and 120 (depending on where I measured.)
My theory on this was that if I did it while it's 100 degrees out, it should be correct the moment I turn on the engine. I found it odd that as it heated up, it stopped flowing instead of flowing more. But I won't worry about it.

I work at a car dealer (not toyota, tho), and have talked to the techs there. They're not precise at all.. They're sure it's fine.. (but otoh, I don't trust them to work on my truck).

 

The ideal way to do it is to overfill it slightly, drive it, let it sit overnight, and check it the next day but this isn't always possible to do.

 

Alright, so I did do the temp check again. This time using the jumper and shift check, as well as my temp gun for comparison.
The temp light came on right as my IR thermometer was about 100. (I think it reads a little high).
And this time, finally, the amount I expected drained out. Every other time, more than I expected drained. About 2/3 quart more stayed in this time.

The main difference, I think, is the amount of time it took to heat up. All the other times I've done this has been a hot day, and it's at temp a couple minutes after starting the truck.
This time it was cooler and took about 15 minutes to get to temp. I think that gave the fluid more time to get pumped where it goes and fill the torque converter, etc.
The instructions do say it's best to do it on a cool day so it has time to warm up.

Also, the 3rd gen instructions about the temp check mention the jumper wire puts the engine in a special idle mode that keeps it at a specific RPM. Maybe that's gong on w/ our trucks too, I don't know.