Coolant leak Leaking coolant middle of car near the oil pan

it is easy to tell the difference between water and oil
if it is water ,it can be hose , radiator, water pump seal or the like
if it is oil ( red oil ) is the transmission oil cooler lines , or black oil crank shaft seals or oil filter leaks
check the coolant level , take it to an accredited radiator shop and confirm if oil or water

I would think maybe the water pump is leaking you will have to put it up on jack stands and wipe everything down under the car. Then if you start it for a minute or two shut it off you should be able to see where it's comming from.

What you are describing sounds like what's called a freeze-plug. These are round plugs or inserts in the engine that are designed to pop out if the coolant should freeze to avoid cracking the block. the orange goo is rust mixed with coolant. This indicates that the freeze plug is leaking coolant and should be replaced (not a major job).

Check the bottom side of the water pump for wetness, as well as the lower radiator hose. The water pump if leaking, will run the coolant down the front of the motor,and can appear to be coming from the top of the oil pan. It is nearly impossible for the top of the oil pan to leak coolant.

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.

First you need to identify what's leaking? What color is fluid? Green, Red, Brown? and where under car is fluid leaking from center, front rt, etc... Another option is check ALL fluid levels - coolant, oil, power steering, transmission.

sounds like u have a cracked oil pan, requires removal from engine and either welding or new pan estimate cost around $300 and up depending on location and if other damage

It's a heater core line. It bolts to the back of the engine and goes into the firewall to the heater core. You have a leak in that hose. Could just be a loose clamp. Don't forget to vote on helpfullness.
Hightower

problem could be heads bolts . i put new bolts in put a little sealer on them . make sure your bolt holes is clean free from debris. put a lillte sealer on intake gasket on top and bottom where coolants travel. if all was done . drain engine oil in clean container .set it aside. take radiator cap off .you a coolant pressure rise kit .put a pan under oil pan with drain plug still off .pressure your radiator about 10 psi. make sure you have antifreeze in radiator and engine . when you pressure up to 10 psi look under the car if coolant comes out oil pan. you got leaking head gasket. if not .put oil pan plug back on . put oil back in car . check your freeze plugs also.

THIS IS STRANGE, BECAUSE THE NEXT PAN BEHIND THE OIL PAN IS THE TRANSMISSION PAN. UNLESS MECURY HAS DEVELOPED SOME STRANGE SYSTEM THERE SHOULD BE NO WATER OR COOLANT ANYWHERE IN THAT LOCATION? IF THE PLASTIC PLUG IS LEAKING IT CAN BE FIXED BY REMOVING IT AND WRAPPING THE THREAD WITH TEFLON TAPE AND RE-INSERTING IT AND TIGHTEN IT. IT THE PAN ITSELF IS LEAKING, THERE ARE ONLY TWO THINGS HERE. ONE, YOU CAN RE-TIGHTEN THE BOLTS TO SEE IF THEY ARE LOOSE AND SEE IT THIS STOPS THE LEAKING. OR, IF THE LEAKING DOESN'T STOP, YOU NEED TO REPLACE THE PAN GASKET WITH A NEW ONE AND REFILL THE TRANSMISSION WITH NEW OIL. YOU MIGHT AS WELL CHANGE THE FILTER WHEN YOU HAVE THE PAN OFF, BECAUSE IT IS PROBABLY OVERDUE. I THINK YOU WILL FIND THIS LEAK IS A STICKY RED FLUID CALLED ATF OR AUTOMATIC TRANS. FLUID. THAT WILL NEED TO BE REPLACED. NEW FILTER, NEW GASKET RETORQUE THE BOLTS, IMPORTANT, DON'T WANT THAT THING FALLING OFF, NEW FLUID, YOUR BABY SHOULD PURR AND NOT WIZ ON THE FLOOR ANYMORE. NOT SURE HOW TO DO ALL THIS? BEAT FEET TO THE NEAREST PARTS STORE AND BUY OR ORDER THE CHILTON OR HAYNES MANUAL FOR 93GRAND MARQUIS AND YOU WILL HAVE PICTURES AND STORIES YOU WON'T BELIEVE! CAN'T GO WRONG! GOOD LUCK!

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