alterbr33d

Hey thanks guys. Sounds like what you guys are talking about is the problem, perhaps I'll post some pics of the areas you guys are talking about. They catalytic converter could also be clogged, My Pathfinder was only $1,000 (kellyblue book is says $3,000) so I don't exactly care if I put it through a lot.

I have a bone stock 1994 Pathfinder. I was traveling up an interstate with a considerable grade for about a half hour and all of a sudden my carpet was completely on fire and white smoke was rushing out of my window. I stopped to put out the fire, and discovered a hole was made right before the gas pedal. I am not much of a car person, but is the catalytic converter right below that area? What should I do? Some clues: I get less than 10mpg, I can't keep up with 4 cylinder cars on the highway, and I was also once doing some light offroading and hit somewhere in the bottom left area of the vehicle. I think maybe it got damaged restricting airflow, and separated from the exhaust system a little. I mean in the winter this thing will piratically turn into a snow blower with the exhaust blowing snow up right below my feet.