I purchased a 05 Navi w/ 56k in Jan 09. I started hearing a slight nocking from the engine a little after. After taking it in to the ford dealer i brought it from they told me it was normal noise for a truck that size. Being its my first truck I went with it. Yesterday while driving my Navi starts violently shaking and bucking. I pulled over shut it down. When I start it up again after hesitation it starts and the engine light is on. A strong smell of gas in and outside was noticeable. This morning i went to my local Lincoln dealership and they said they'll look into it. @ About 3pm i decide to call cause i havent heard anything. They mention my cylinder blew. I can get around simple fixes but by no meanes am I mechanic savy. Luckily I purchased a Ford premium warranty @ date of purchase. He told me a Ford inspector has to come down and take a look. I cant get a rental until everything is ok'ed. @ the moment the engine is being taken down. If anybody has ever gone through this please inlight me, educate me or even give your opinion on whats in store for me. Is the truck even worth keeping after this?