valmomo69

I have had the check engine light on twice and both times brought it to the dealership and they said that one or more pistons misfired. They replaced plugs, coils, and wires and the last time they said it was that carbon was building up, so they put techron fuel system cleaner. Is this a common issue ?? Can I do anything to prevent this ?? I use only premium gas..

R. Reyes

Have never heard of this. After a quick search of the TSB's it's not there either.