I noticed a leak coming from the bottom of my car...it is on the drivers side from a pan that is facing vertically.what is this pan connected to?

 

chrisX, what color is the liquid that is coming out? In short, if it is green or orange, it is antifreeze, if the fluid is red/brownish, it is tranny fluid. If the fluid is kinda clear (may be slightly greenish in color to a darker green-depending on age, it will have a slightly sticky feel too it yet still look clear like water), that is brake fluid. If it is dark brown, then it is oil. The only other option is a clear liquid, but that would be water that has gotten trapped somewhere (possibly your A/C drain pan). If it is dark kinda like oil but has a "fruity" kind of smell to it, then you are looking at differential lube.

I would need to get out and look at my car to see what pan you are talking about. But, that will atleast get you going in the right direction.