When my car is in drive it will rev to where it normally hits second, and then hits a kind of false neutral. If I come to a stop and start again it's back in first and will do the same thing. in 3,2,1 it just stays in first doesn't try to shift. Fluid was on the low side so I topped it off but that didn't change anything. Checking it when not running vs not running the fluid level drops so I think the pump is working? A few months back it totally stopped working so I changed the filter and it was fine after that. I did notice some metal bits stuck to the magnet on the pan but didn't think much of it, I was just happy to leave that parking lot. Thread from when that happened: http://www.grandprixforums.net/showthread.php?t=81278
Google told me its some sort of pressure solenoid? I found a thread with a similar problem but I don't know how he resolved it. I'm going to be out of town all weekend but I should have time to check for codes and fiddle around a bit on monday. hoping I don't need to replace it.
2002 grand prix 3.8 na.