Engine blow by

[Khalid4747]

Hello everyone,

I have a 2013 Volvo VNL 670 with a Cummins ISX 15L CM2250. I recently was diagnosed with a leaky EGR cooler that was burning about a gallon of coolant a week and the turbo was blowing oil from both the cold and hot side. We've replaced the EGR cooler, cleaned out the DPF filter, and had the turbo rebuilt. The turbo now seems to be blowing some smoke (not oil) but the coolant problem has gone away. Now I have a different problem where there is extensive engine blow by and weird sludge in nearly every part of the engine.

When I took off the engine crankcase filer, it was covered in this sludge that looked like a combination of water and oil.




This was sitting at the bottom of the crankcase filter.

When I removed the oil cap, it looked like my truck had a mini steam engine. The inside walls of the tube had that weird sludge and when I went to smell the blow by, it smelled like a window cleaner if that helps. I also looked at the coolant and the coolant pressure seems to be normal.



What could cause all the sludgy oil? Also what can I do to help my engine's blow by?

Thanks for your help!

If the images don't work
Img1: https://drive.google.com/file/d/1Ynz1ap7...sp=sharing
Img2: https://drive.google.com/file/d/1r-IyyfJ...sp=sharing
Img3: https://drive.google.com/file/d/1A8Fgzim...sp=sharing