It has happened a few times, but not this bad. I have 42K miles on it but what happens is when i came around a corner, I let it idle around then give it some gas and it reved to about 2000rpms and so i knew what it was going to do so i let off before it slamed and did this 2 more times then it put a looked to be about 5/8s to 3/4
![Wink[3]](http://www.powerstroke.org/forum/images/smilies/wink[3].gif)
wrench on the screen and wouldnt let me leave that gear any more, so I cleared the code? Any Ideas. I am thinking take it to ford and have the tranny flushed and external filter changed?? Any ideas