What is causing oil to leak from your 2002 jeep grand Cherokee?

Answer 1

Assuming that you know nothing about your engine because of this question we'd first have to wonder if this is actually oil at all. Might be water from your AC system dripping on the ground, or Transmission Fluid, or antifreeze, brake fluid, or yes, maybe even oil. Out of all of those choices water from the AC evaporator pan is a good thing, the rest are not. Take this vehicle to a shop or to the dealer because you could have a serious problem that would affect the safety of you and your passengers, not to mention the health of your vehicle.

Answer 2

Is it coming from the front pully? Oil seal. Is it coming from the clutch housing? Rear crankshaft oil seal. From the sump? Sump gasket or drain plug washer. Rocker cover, then check the seal, mostly anywhere else it could be due to poor piston rings causing a build up in crankshaft pressure.