I plan on changing as much transmission fluid as I can at home on my wife's Jeep. Going to drop the pan, change filter, and install a drain plug. I also plan on trying a DIY transmission flush after that. I've read on this forum about a procedure where you unhook the transmission cooler line, start the jeep, and allow the fluid to pump out while you fill the jeep with ATF4 simultaneously.
Would there be anything wrong with just letting the fluid pump out and refilling it afterwards? I'd fill a bucket that measures the amount pumped out, so I can be sure to fill it with as much as came out.
The perfectionist in me says I need to try and get as much of the old fluid out that I can...
refer to this thread about flush: http://www.jeepforum.com/forum/f96/d...-flush-941569/