I have a 1999 Isuzu VehiCross and yesterday I was walking past it and smelled some kind of fluid. I opened the hood and there was a puddle under the breather hose for the differential that comes out by the power steering reservoir. My problem is that I can't figure out why differential fluid would be coming out of the breather hose. I have not messed with the differential fluids since I got the car last year.