C12 with excessive blow by and leaking oil out everywhere, but it has no noise, cranks fast and is not smoking. I have already checked turbo and that's not it. Also put my hand at fill tube and it is pulsating like a cylinder problem, but it is not skipping, smoking or no noise! It runs as it always did, please help!!!!
Had a cummins 4b in a roller that had the air cleaner crack and dusted the motor. It would run but had oil runing out the breather hose. Sounds like you have a scared cylinder.
yeah, you need to get ET connected to it and run a cylinder balance test, remember the ECM is doing everything it can to smooth out that motor so you may not notice it