I have a 2013 F150 EcoBoost Screw FX4. On initial movement from a stop there is a slight shudder at around 1500/1800 RPM's. When I mentioned it to the dealership they couldn't seem to find what I was talking about. Well a year has passed and it's still there. Through this forum Crystal contacted the Ford area customer service representative (Steve) who placed a call to my dealership. Funny thing their now interested in solving the problem. I took the truck into the dealership and took the service manager for a ride showing him exactly what I was talking about, that was on 2/11/14. He seems to have forgotten about me until I sent him and the owner of the dealership a email asking where we were with the issue. I spoke with the service manager yesterday and he said there is nothing that Ford has identified that would cause this shudder but they would like my truck for a couple of days so their "master mechanic" could look into the problem.
Do any of you out there know what the remedy for this problem is and are any of you aware of anything Ford has issued as a service bulletin addressing this problem?