I saw these a while back when the guy first put them up. There was a big discussion on another forum I frequent regarding the known issue of carbon buildup on the valves for DI motors. Many manufacturers have had or are still having similar issues with the design flaw. Having to R&R a heads on a DI motor for this is ridiculous. Some have done the walnut shell blasting with ok results.
Hopefully I won't have to endure any of this as my usual game plan is to trade out of the vehicle in a year or two. I haven't hit anything north of 33,000 miles on any of my trades. Last one only had 12,000 on it. I would hope that Ford would decide to release some info for what they plan to do with these vehicles when they have to have this issue addressed.
Are they going to R&R the head for you under warranty? Perform some type of induction or valve cleaning service at no charge? All good questions for Ford Customer Service.
