Ok. So, yesterday, I noticed a spot on the concrete under the tranny pan. I checked the area out with a flashlight, and it was wet.. in a lot of places. Wind from driving probably blew the fluid around some. So i'm not sure where it's coming from but it was dripping from the rear section of the pan (most likely because that's the lowest point on the transmission in that area). I cleaned it all off so i'd be able to tell where it was coming from.
I drove it around today, and so far there's nothing. The leak appeared overnight, after a day or two of not being driven (as far as I can remember). We pulled the dipstick, and of course it's all brown. Well, this time it showed it as being overfull. Also, there were a few bubbles in the fluid too, which is not normal. I don't think we noticed either of those things the first time we pulled it.
Link to AT stuff
^ That website says that the bubbles could be caused by:
-Overfull AT fluid
-Not enough AT fluid
-(if the fluid is milky brown) a leak in the AT fluid cooler, so it's mixing with coolant
-Plugged transmission vent
There's enough AT fluid, and i'm 99% sure there's right kind of fluid in there.
As for the other things, I'm going to have to pull some fluid to see if it's milky brown or not. Also, doing that paper towel test suggested on the website isn't a bad idea either.
I'm just worried that there might be coolant in the fluid. Because then we'd have to change the fluid, and risk killing the transmission...