Need more info. Would like to know where this hole is.
could be freeze plug, or intake leaking
I'm no expert but possibly the cylinderhead is leaking or cracked dropping water into the engine crankcase via the pistons.
Why is the water not circulating in my 1995 C1500 Chevy truck?
Most likely the intake manifold gasket is leaking.
Yes water cause leaking
My truck is leaking from the water pump and i dont know where it is leaking from all i need is a diagrame to show me many different ways it can be leaking at so i can look at all the place..
if you have a leaking water pump gasket i thing bay a new one is better
Possible leaking hoses or water pump
If it is on the right side of the truck, back of the engine, after using the A/C it might be the condense water from A/C. It tends to drip on the chassis first and then on the floor, quite a lot though, but harmless.
ac or exhuast
When it starts leaking are making noise.
If there is coolant coming from it and it isn't a hose.