But the new problem is valve springs not the valvesMakes sense, some of these were built after Ford got a new/additional supplier for the valves. The newer engines use a different supplier, and do not suffer from poor heat treatment/different alloy, which made the valves brittle/prone to cracking.
Everything I see while searching the web says all the 3.0L V6 Ecoboosts are built in the US. If so then technically it’s a US build problem already. And if true how many of the undelivered Ranger Raptors may potentially have this problem? If anyone knows of the 3.0 Ecoboost being built anywhere else please chime in.Could be a problem, but seems to be relatively isolated. Who knows what will change for the US build.