I have a 95 F150 with a 4R70W trans.. When you put it in reverse it goes forward. When you put it in neutral it goes forward. In drive it shifts fine.When you put it back in park and give it gas it feels like it is trying to pull forward. I changed fluid and filter and that did not help.Feels like a valve or something is stuck.Can someone point me to the problem?

 

check the linkage for proper adjustment

 

Not a linkage problem.The park pin engages and still pulls forward. Could it be converter lock up valve?