sport trac losing power and smoking out the tail pipe, smell like gas buring on 2002 Ford Explorer Sport Trac

the sport trac just started a large amount smoke from tail pipe and has lost power while driving. it smells like the gas is going through the pipe. as soon as i slowed the engine would cut off. it restarted but i had to keep gas pedle to floor, most i could get for speed was 30 miles hr.
i traveled 10 miles and used ablout 20L of gas. it seems like the gas is just going out the tail pipe.
what would cause this?

Asked by for the 2002 Ford Explorer Sport Trac
2 answers
It sounds like a bad fuel injector but any any rate the car should not be driven. Gasoline may wash lubrication from the cylinder walls or catch fire in the exhaust/cause catalytic converter failure.
sounds like a misfire...a diagnostic is needed..try my shop