Hi, I have a 2001 grand prix gt with the 3800. It worked fine until recently it was leaking transmission fluid, when I went to check the lines I noticed that it was not leaking from the lines, but rather from what I assume is the breather on top. After that I gave it a new filter and fresh trans fluid, but it still did it. After that I checked to see if the radiator cooler was clogged, but the cooler flows both ways and both lines flow.
I don't have any other ideas, if anyone has an idea or, knows what the problem is, thanks in advance.