That's weird. I've owned both the 5.4 and the 4.6 I have now for a combined 16 years and neither ever gave me any issues like that. The only complaint I have about the 4.6 is that it's a little under powered for me even though most people seem to like them. I guess you get good ones and bad ones in all makes. my neighbor said that he was pulling his camper and his truck was working real hard when the plugs blew. I have never worked my 5.4 that hard.
My neighbor said that he was working his 5.4 real hard pulling his camper when the plugs blew. I have never worked mine that hard, but now I'm a little worried. It's a 1999 van, so it's not a spring chicken. Oh, and it has just 128,000 on it.
Edited by Doxey, July 12, 2016 - 02:14 PM.