2020 Lincoln Corsair Engine

On December 23rd ,2024 I brought my 2020 Lincoln Corsair to Keller ford dealer ship in Hanford CA. The issue was the engine overheated without any warning lights. I requested they diagnose the problem and provide me with the diagnosis and cost. They informed me that there was coolant intrusion on cylinder number 1 and spark plug was seized they told me I would need a new valve head and the cost would be $3950.86. I Have now learned that there has been a chromic problem with the 2.0 engine. I'm enclosing a problem list detailing the significant issues that have affected the corsair engine. These problems are systemic to the corsair engine as documented by the complaints of the corsair users. I have notified Lincoln of the problem and was never informed that this was a known problem to Lincoln. When we purchase the corsair I expected Lincoln to stand by its product. I was under the belief that Lincoln was a forth right and honest automobile company. I'm now out of pocket this amount of money. I expect Lincoln to act in good faith and remedy this situation. Please contact me at my email [XXX] or [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Knocking in the driver's side footboard when accelerating.