How do I locate the oil leak?

Hi rtc777. Welcome to the forum. Depending on which engine you have, some common leak points are the oil pan itself, the oil pressure sending unit, and the camshaft front seals, (passenger side), typically on the 3.0L. Don't overlook a loose oil filter too.

The valve covers don't leak very often. The 3.3 / 3.8L doesn't use a gasket. They use a bead of silicone RTV sealer that works really well. The 3.0L uses a rubber reusable gasket. Those can be tightened down just a little when they start leaking. Since your leak is down lower, look first at the oil pan. If you see wetness all the way around it, wash the flange off with engine degreaser and water, drive the vehicle a little, then inspect the area to see if that's where the oil is coming from. Resealing the pan is not very involved. That RTV sealer is all that's needed but the surfaces must be cleaned first. The best material to use that I've found is the gray stuff from the Chrysler dealer's parts department. It will seal even if there is a light film of oil on the surfaces yet. The black stuff stays more rubbery but it absolutely will not form a good seal if any oil residue is still on either surface.

Caradiodoc

Well, I double-checked the 3.3L in my '95 Caravan and there really isn't much that can leak oil. On the front there is the oil filter, dipstick tube, and valve cover. Mine is wet too, but it appears the breather hose in the valve cover is leaking and vapor is condensing around it.

On the side is the timing chain cover and crankshaft seal but I don't think those would let oil get to where you're finding it. What you might consider is pressure washing the engine, then adding a small bottle of dye to the oil. After driving for a few miles, you use a black light to see where the dye is coming from. It will appear as bright yellow under the black light.

Caradiodoc