First of all, let me say I don't drive the van. It belongs to my father so I don't know anything about these vans. He has a 3rd generation G series van. There is a leak coming from what looks like a/c lines, but it's leaking something with an oily substance. I think it's odd that an oily substance would come from the a/c components. Again, I am not positive it's coming from the a/c stuff, just an assumption. He mentioned that it has never leaked from this location before. He never uses the A/C, but he used it yesterday and he believes that that's the cause for this leak. I have posted some pictures below to show you guys what I mean.

P.S. see 3rd picture below, Looks like there are traces of the leak coming from that hose as well.

 

anybody?

 

72 views and nobody knows anything?

 

nobody?

 

Hi,

Those look like your transmission cooler lines that are leaking.

 

yea, it looks like your tranny oil cooler lines have rusted out. AND your dad needs a new water pump based on the 3rd picture. That looks like antifreeze running down the lower radiator hose.