I did not let off until the end when the nose dropped.
It wont hurt it to run it like that occasionally. Its designed with that in mind.
I shift from 2nd around 20MPH since this is about where it will want to go into 3rd on its own at low throttle.
The cooler lines go from the transmission to the radiator area. If you open the hood, and look straight down on the passenger side between the engine and the fan you will see two small (5/16") hoses. You can disconnect them, point them into a bucket, and have a helper start the car. When it starts spitting fluid, shut it off. Measure the amount of fluid removed, and add that amount back into the transmission. Take it for a drive and double check the fluid level. Adjust if necessary. Done|
If you wanted to change the filter, you would not add fluid after you shut it off and instead drop the transmission pan, change the filter, then refill.
The advantage is you dont get a transmission fluid shower, as long as you are careful. When the transmission is full of fluid, the level is over the top of the pan, so dropping the pan results in a mess. Pumping the fluid out lets you do it cleanly and professionally.
2004 Ford Crown Vic LX, 89k "Tank" (Totaled 12/06/15 22:30 PST)
2002 Ford Crown Vic PI, 201k "Highwayman" (Ex-Kootenai County, ID Unit #42) - Down for bad engine
2003 Ford Crown Vic PI, 98k "Name TBD"