My FG had a recall to replace the rocker arms. When I had it done they found a broken exhaust rocker arm and a damaged valve. This of course required pulling the head and took some effort and time to complete. I don’t know when it broke since there was no additional noise and seemed to drive OK, thank God for having four valves per cylinder. When I got it back I was hoping it would be quieter and have a little more power, no such luck. The bottom line is, even if you think your 2017 FG is OK get it fixed before you have bigger problems.