missing and sputtering all the time
I have been having problems with my 2005 f250. Started about a month a go. Started to get a miss or sputter when driving at normal speeds. It got worse until the truck was not drivable. Brought it to my tech and he told me that i had a bad injector #7. Replaced that and drove the truck for 3 weeks and same problem came back. This time he says that the # 7 injector is bad again and the ficm had caused the problem. He told me that because one of my batteries was on its way out that it causes a spike in the system and shorts out the ficm. Any advice would be appreciated.