Been struggling the last few years with internal coolant leaks in my '04 DII. First time was head gaskets, then front cover.

I took the front cover off recently to replace the oil pump gears and figured I screwed it up because coolant was in the oil again. Took it all apart down to the heads just to see if anything obvious was causing it before I went deep. It's overheated in the past so didn't want to remove heads and cause block stress if I didn't have to.

Before I put the sump back on, I figured I would fill the coolant, again to see if anything obvious popped out. What I found was a pretty steady drip toward the back of the crank . Hopefully the pic comes through. Can't see where it's coming from . Almost seems straight down.

It's not my daily driver, but would love to keep her in the family. Just hoping there's another idea out there other than scrap the engine because you have a crack.

 

Recommend considering intake gasket as source of leak prior to condemnation of block.
......

 

Co-signed.

 

Remove intake, would be willing to guess, there might be coolant in lifter valley. X3 on intake gasket.

 

pressure test it before you pull the intake, wont be able to do it after.

could be the rear core plug leaking if your lucky