I am diving into a head gasket replacement..... coolant leaving the system, over heating, oil and water are mixing in both systems and I have bubbles coming out the coolant over flow tank, and water in the oil, Oh yeah this engine has less than 70k original miles, so I have cold feet about this head gasket diagnosis. When I pulled the turbo to intake section off there was tons of milky coolant water around the edges(meaning coolant is going right into the intake through the turbo). It may be a side effect of the blown head gasket (since the turbo runs off exhaust) but I do not know how the turbo relates to the engine, it seems weird that their would be a lot of dirty coolant and water in the turbo to intake pipe and I have not had this sympyom, before, and I have done a head gasket. I am wondering if this could be an internal turbo problem, and not a head gasket?????

I am diving into a head gasket replacement..... coolant leaving the system, over heating, oil and water are mixing in both systems and I have bubbles coming out the coolant over flow tank, and water in the oil, Oh yeah this engine has less than 70k original miles, so I have cold feet about this head gasket diagnosis. When I pulled the turbo to intake section off there was tons of milky coolant water around the edges(meaning coolant is going right into the intake through the turbo). It may be a side effect of the blown head gasket (since the turbo runs off exhaust) but I do not know how the turbo relates to the engine, it seems weird that their would be a lot of dirty coolant and water in the turbo to intake pipe and I have not had this sympyom, before, and I have done a head gasket. I am wondering if this could be an internal turbo problem, and not a head gasket?????

 

What is the condition of the turbo? any shaft play? has it gotten very hot? It is possible that the turbo casting could crack and allow water and oil to mix. But then it would also have to be leaking oil around the shaft bearing for it to get into the intake. I've never seen that happen. I have encounted grey oily sludge in that intake on most of the ones I've taken out. It is probably evcess moisure and oil from the PCV system. Extra moisture from the blown head gasket.