Hello, I've been topping of my transmission fluid occasionally, and it keeps dropping down to a quart low. I went under the car, and took a few photos. Specifically, there's this "black plastic circle" that feels loose (I can wiggle it with my fingers, and it moves around a bit). I'm not sure what it is, it doesn't look like it is on the transmission pan, but I know little about the anatomy of a transmission. There's also this little gap between the bell housing and the engine (I couldn't...

2001 v6 automatic transmission leak