The other day I was at the car wash and my friend owns it and he wasnt busy so I dropped my transmission pan to change out the fluid, and once it was all drained I figured that I washed out the pan, so I should wash out up inside, too, so while the pan was drying, I drove it up into the automatic wash with undercarriage and let it blast it all out, drove it out back of the car wash and just walked around to get all my stuff in the front, since I figured I shouldnt run it too long like that.
So I reinstalled the pan and filled it all back up with dex 6, and then went to go home.
It wont shift out of first gear, it gets up to 5k rpms when Im driving and starts to shake and shudder like the car is going to fall apart until I let off the gas and it slows down, it also makes this horrible grinding sound like 2 pieces of metal being forced together really hard once it begins to shake, but not always.
Any help?