- Moderator
- #1
I just got the chance to see for myself if the flash alone will "repair" a severe misfire on a 6.0. I got an 04 brought in "Runs very rough in the mornings". After sitting all night(temp went below 30) verified misfire on #4,#5,#8. Severe enough where there was no throttle. Performed flash, drove 10 miles, then sat until next morning(again nighttime temp around 30). Started, and runs perfect.