2003 Lincoln Navigator

2003 lincoln navigator 201,000 miles. Ask me anything about the truck. I will be happy to answer any questions you might have. I've had this truck for over a while. It's been my daily driver for the past few years. Just recently, my check engine light came on, and the engine started to rattle after driving the car for a few minutes. I have been looking for a new car lately and I have been planning to sell this truck anyway. I thought this would be the perfect opportunity to sell the truck to anyone who'd be interested in finding out the problem and fixing her up. No rush to sell. Decent offer get it first. I scanned the truck for codes and posted what I have found. Car still turns on and operates. I just rather not move it anymore until someone buys. Open to offers