Quote:
Originally Posted by AndyW
So, dealer determine small leak in the intake manifold and linked it to previous EGR issue, so they replaced the manifold free of charge. Matches symptoms so Happy about that. Unfortunately that explanation doesn't resolve the slow coolant leak issue and I just got my Blackstone results today with high sodium, indicating coolant getting to the oil. Ug. Gotta do some research.
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The holes in your intake were caused by the EGR/coolant issue. Your new EGR cooler may have the same issue, hence the damage to the intake and traces of coolant in you oil samples.
I’d Show the dealer the oil report to get it on record and tell them your concerned that the EGR issue isn’t fixed.
Then pull another oil sample in the next 1k miles to see if sodium levels drop. Apparently Sodium is normal in Diesel oil, but high amounts can point to coolant.
Thanks for keeping the thread updated!