I have a 95 F150 4x4 with the 5.0 and automatic transmission. Started hesitating and bogging down after 10 or 15 miles or so. Read the codes and replaced EGR and sensor, fuel filter,throttle position sensor,and map. It seem to get worse after the EGR valve and sensor were replaced. It doesn't matter which tank I'm running on. Once everything cools down, it runs smooth as silk again. Also, when it is doing it's bogging down thing, I can throw it in neutral and the engine revs up-no problem. Put it back in gear and it bogs down, then runs fine for a bit. Could a clogged catalytic converter cause these symptoms?