I have been looking through these post last couple of days and wondering about the engine issues or failure on the new Coyote 5.0. Mine is a 2012 GT Premium bought in Aug 2011 as a 2012 model and had 4.2k miles when all my issues started. So far I have experienced the "knocking noise" which was a spun bearing a now I have a new long block installed. When the knocking noise started I check the oil and it was 4qts low...not sure where it went and yes I had checked it a few times before the knocking noise and swear I was good on the dip stick. I still think this was a primary cause of failure but I did not see to many other low oil issues noted. Picked up the car and now fighting the CEL issues: First was caused by loose spark plugs, now they are going after the Tone Ring for the Crank position Sensor (CKP?). My symptoms were the same as another poster saying ran okay when CEL was steady but as soon as it started flashing I felt the running rough or misfire of the engine. The CEL would go steady on and the engine smoothed out but CEL stays on. Dealer taking care of everything well so I am satisfied with their effort...just frustrated with the issues right now. I see there is some Ford Cust Srv participation so with all the expertice here I was hoping for some advice or confirmation on what others are seeing.