The Power transfer unit is leaking fluid onto the exhaust and it caught on fire as I pulled into my driveway. I was able to extinguish the fire before any damage was done. There is also a nauseous odor in the cabin of the vehicle that makes me sick, burns my eyes every time I drive my vehicle. I was told by a mechanic that this was the fluid from the PTU burning Did some research and discovered this is a common problem with these PTU's leaking fluid. Very concerned now that it will catch on fire again and cause damage or even a wreak if it locks up. I fear that this could harm me or someone else if this problem is not fixed ASAP. I have no other vehicle and not sure how to even get it fixed. The dealership said it would cost around $2000 to have it fixed. I would like someone to look at this issue, Ford advised that is not there problem and its not covered by any recalls. There is no way of knowing if it catches on fire going down the road until its actually on fire.