I want you to know that my expedition is running horribly. The engine is ticking and you can smell gas when you stop. You cannot accelerate over 72 miles per hour without the vehicle vibrating. And if that's not enough, now my transmission is slipping and there is an oil leak that I didn't have before. I'm very upset about this situation. I didn't ask you guys to look at my engine. Just to correct the service light and brakes . You have placed a junk engine in my vehicle and took my 5.4 engine. I’m taking it back on Monday afternoon. Doug Blanton