Adam, get under the car and take a look at the fuel pump and accumulator. They're on the right side of the driveshaft just forward of the rear end (under a protective cover. Look around in that area and see if you can find any evidence of fuel staining. You may have to put it up on a lift and have the engine running or at least the fuel pump energized to see if it's leaking in that area. Good luck..
2000 Dodge Grand Caravan SE