93 explorer dripping oil over night from bottom of car

look for water in your oil or transmission fluid

check valve cover gasket and look around the pullys at the bottom of the engen

well it could be several things like pan plug seal cracked, oil pan leaking, rear main seal bad, front engine seal bad, head bolts not properly torqued, head could be cracked, but I would start with the oil pan drain plug seal and work from there.

first is to check the oil pressure switch (near the oil filter)(cheap) if its not that the oil pan and the bottom half of the block can leak (famous Northstar leaks) (BIG $$$)

TRANSMISSION FLUID LEAKS,CAN BE FOUND AROUND PAN GASKET.CHECK PAN GASKET,IF IT LOOKS WET AND YOU SEE FLUID DRIPPING AROUND THE EDGE OF OIL PAN, REPLACE PAN GASKET, WHILE YOU REPLACING PAN GASKET REPLACE TRANSMISSION FILTER WHILE OIL PAN OFF.IF TRANSMISSION OIL PAN NOT LEAKING, CHECK TRANSMISSION OIL COOLER LINES GOING INTO RADIATOR YOU WILL LOOSE A LOT OF FLUID THERE ALSO TORQUE SHAFT SEAL WILL CAUSE HEAVY FLUID LEAK WHILE ENGINE RUNNING CHECK OIL COOLER LINES AND LOOK AT THE TORQUE AREA WHILE ENGINE RUNNING YOU WILL SEE FLUID POURING WHILE ENGINE RUNNING THE OIL PUMP PRESSURE WILL PUSH FLUID OUT AT THE LEAKING AREAS.

Is it leaking FROM the oil pan, or dripping OFF the oil pan?

If its dripping OFF the oil pan, that leads me to beleive you have a coolant leak somewhere. Check the coolant level. Check for leaks.

Check your oil, if the oil is milky/coffee colored. Or if your coolant looks kinda nasty, you may be looking at a headgasket.

water pump is leaking from bottom

oil catch pan hydraulic cat and ratchet with metric sockets adjustable filter rachet lift car front get on under with oil pan rachets and on the motors side of the car you'll find a bolt on the crank pan just a lonley screw on the bottom of a pan close to where your under loosen screw first then put oil pan under try and loosen screw slowly so when it lets go you can cntrol the flow a little so the oil pan can be put in the proper place to catch the oil let it empty till there is nothing but droplets return screw and tighten back on do not over do it the treads on the pan can be harmed if you over tighten then locate filter put oild pan under filter loosen and the same way as the screw do with the fiter . Before putting in new filter on put some fresh oil on the rubber ring and inside just a little so it goes on smooth your finished under the car now go up top hood open you can put car down by now find oil cap and fill in oil

Oil can leak of anywhere under car. You need to look at everything to determine where oil is coming from. Could be valve cover gasket, could be a seal, could be oil pan gasket, could be loose oil filter, etc. You have to look for area with wet looking oil, and start with that.

If you had the oil changed lately and the "O" ring stuck where the filter unscrews and someone proceeded to put the new filter on without looking this can cause a problem. Putting too much oil in the crankcase can cause a seal to blow. A leak at the oil pressure switch. A loose or not sealed oil drain plug. You will need to try to locate whether it is coming from the bottom or at the top around the valve pan cover which is the most likely place, and if it that is the case; it still can drip through the night while it sets, which is missleading. If you can't find any noticeable places...that is a good place to start...at the valve pan cover...seal it real well with RTV sealer, let it dry over night and see if the problem goes away.