I have tried everything under the sun..........I even had 4 Ford dealers look at it. Cleaned, MAF a bunch of decarbons, clean EGR system, megadose of Amsoil PI, had program done over again. I just Ran some Amsoil power foam and Techron, then changed the oil/filter.
When they reprogrammed it for a rough idle is when the problem started. A week later it started pinging like crazy even on level ground after leaving a gas station. It was not bad gas.
I believe the program went bad. RX is the only thing that ever solved it completely.
When they reprogrammed it for a rough idle is when the problem started. A week later it started pinging like crazy even on level ground after leaving a gas station. It was not bad gas.
I believe the program went bad. RX is the only thing that ever solved it completely.