Kluch8651

I have a 98 4runner it will fall on its face while driven an gets warmed up i can take it out of drive an put in neutral an let off the gas an press back down an its fine untill i put it back in drive. An it will only do it sometimes one day it will do it all day an others it will act fine for a month an it also does it really bad when it rains i put new fuel pump an filter in it an not sure where to go next never had this problem need help please