Since most the words to describe this are non-descript, I thought I had to do a post instead of a search.

Anyways, get about half a mile from my house, and all of a sudden it sounds like I have a flat tire. Quickly pull it into a neighborhood and the noise is still there. Sounds kinda like a lawnmower. I thought I must of split a plug or something, you can hear the sound of air escaping and a good bit of gasoline smell under the hood. I checked as best as possible in the dark with a flashlight and all the plugs seem to be in and fine. But in every stroke you could definatley a poof of air and the gasoline. Was idling around 900 rpm.

So.... anyone else have this problem? I have a 99 5.4l with about 93K miles. I'm gonna get it towed tomorrow considering I didn't think anyone would go out and tow it Christmas night. Just to get an idea, what the hell is wrong with my engine?

 

Well , hope you don't see it but take a look at each spark plug location for a plug that has blown out of the cylinder head.
With the engine running it should be apparent and won't hurt anything on a short time run to see if this has happened.
Just don't overdue it by letting a lot of gas build up and cause a fire.
The injector is still working wether the plug is in or not and the piston is pushing gas out the plug hole.
Good luck.

 

It's your spark plug. I had the exact same problem on my ranger. I was driving down the highway and boom, the plug blew out. It sounded just like a tire blew. I don't know why they do that. The plug's had been in there awhile. But the next day i changed all of them just to b sure it wouldn't happen again.

 

welcome to the club.
look for a broke COP. the plug may still be under it. once found you can unplug the injector and drive it. when my plug blew i drive about 15 miles home.
You will be able to fix it yourself with an insert kit.

Here is a link with all the info you need.