I've had this problem off and on for the last 5 or so years and can't figure it out. I am hoping that someone else may have figured it out. The truck runs great and seems to have plenty of power but it will go through periods where it will studder a little about every other time I run it. I've been running Rev-X winter fuel additive and just switched to Stanadyne but it was doing it before the switch, I've got a fairly recent fuel filter change and the problem seems to go away after I fill up the fuel tank (50 gal) there are no codes on my Edge CS, and no obvious leaks. Anybody have any ideas?
05 F-250 Lariat
6" lift W/ 35's
Stock W/ Sinister coolant filter system, BPD 6 phase FICM, blue spring upgrade
51 gal Titan fuel tank
Edge Insight CS