2015 f250 6.2L. I have coolant leak that’s coming from the bell housing. I checked it out throughly and it’s not the oil cooler

 

Check tstat first of course, then all the freeze plugs.

 

Many times a leak will be higher up on the engine and run down toward the back. If you check closely,you might see an unexpected source.

 

Thank you, I’ll look for that.

 

Don't start taking components apart from the top to see, get a borescope (snake camera) and start from the bottom so you don't need to waste time to remove anything, there should be a total of 6 or 8 freeze plugs, 3 or 4 on each side.
If coolant can escape from the freeze plug (part of cooling system), air as well can enter into your cooling system and overheat your engine, so don't just top off your coolant overflow tank.

 

Can you tell if it is coming from the driver's side or passenger side of the bell hsg ?

 

I see it all across the bottom of the bell housing and where the oil pan is bolted on.

 

If you follow the bolts holding the oil pan, can you see any traces of coolant on either side of the engine ?

If not, could it be coming from the top rear of the engine where the intake manifold is mounted?

A coolant system pressure tester pumped up to no more than15 psi (lbs) should reveal the source.