Can anyone guess where the leak could come from?





I have attached images to show the location.

 

Turbo coolant hoses are notorious on these engines ...

 

Do yourself a favor - get the new OEM hoses. Cut off the plastic hose bits and install sylicone hoses. Wider diameter, more heat proof. Every single plastic bit that goes into the engine block...they are going to break. They are PITA to get out (I used a soldering iron to melt them) and all need to be changed...just when you think you got them all, two more show up. Plus, more on the back side of the engine into the firewall.

 

Okay, some of the very easy things that I would replace right off of the bat and that have been replaced on this particular engine






this 550 engine is almost a mirror of the other engine