Antifreeze leaking onto engine block - 2001 Ford Expedition

Engine blocks have multiple freeze plugs, also called expansion plugs, installed to block the holes used to cast the metal. The plugs prevent coolant from leaking out of the block, and if coolant freezes (due to improper concentration or extreme temperatures), the expanding ice pops the plugs out to prevent block damage. Now, from the factory the plugs are usually made of steel and therefore tend to rust out over time and start to leak antifreeze. Considering there are no cooling system components inside the bell housing, it is highly likely that either one of these plugs are leaking OR something higher up on the engine is leaking down onto the bell housing, such as a head gasket or coolant hose. A cooling system pressure test would need to be performed to isolate the source of the leak. You can read more here:
https://www.yourmechanic.com/question/water-leaking-out-from-side-of-engine-by-shawn-m

If there's no external obvious leaks and not overheating, you have an internal leak, either from a bad head gasket, cracked engine block or head. Check under dash to make the heater core is not leaking onto the carpet.

may be you should make a diagnostic and you can do it in a garage or you can do it by yourself if you want to do it by yourself you need some tools and you can find some good ones here: chinasinoy.com

The one definite thing you need to do is to run the engine 'till it begins to leak, turn it off and carefully examine everything and find the source. Obviously, I can't see it but the start of any repair involves identifying what needs to be replaced by looking. Antifreeze will run down to where it can drip off the car onto the ground. Make sure you find the actual source which most often is much higher up on the engine than the point where you actually see the drip. When hot, the coolant is under pressure so before attempting the actual repair wait for it to cool down or you can get burned.

if cant find any spots on the ground an you're still losing anti-freeze, from my experience its always been the headgasket, if the headgasket isnt fully blown out your car will seem like its running fine an burn the antifreeze up during the combustion stroke of the engine, or it could be leaking onto the exhaust. check to see if theres any puddles of anti-freeze on top of the engine an check for leaks around the heads. if there is no puddles of leaks it could be your antifreeze is leaking into the engine an burning up during the combustion stroke

If there is a internal antifreeze leak, there will be antifreeze mixed in your oil. Check your oil. If there is antifreeze in there, you probably have a bad head or base gasket. Worst case scenario is your block is cracked somewhere. Check your heater core and the lines as well. If the heater core is bad it will be leaking.
Check the thermostat housing for a leak. Sometimes
the antifreeze will leak from there, and burn on top of the exhaust instead of dripping onto the ground. Good luck

GM has a sealing tab, helpful in similar situations. Inquire at the dealership parts counter. Hope this helps

Ok, Its defiantly the seal that is between the water pump and the engine block that is leaking the coolant.

might be a freeze plug leaking, or heater hose. there are three freeze plugs on each side of engine and two in back of engine. most likely if any of them are leaking, it will be the one behind the starter on the far right rear of engine block. they have also been known to leak around the front and rear of intake, where intake, head, and block meet.

Check out your freeze plugs. They are thin metal cups that press fit into the side of the block. Use a mirror and a light to inspect while the engine is running.