My Pete rebuild

[Nostalgic]

On a cold start, once it dropped out of warm up mode and idle would drop, a lot of times, it sounded labored. Not all of the time, but a lot. When it was labored sounding, I would have a vacuum at the intake again.

Is it possible that there's a issue with the actuator that didn't show with your tester?

Would the mist of oil being pushed through the CAC be enough to cause the deposits?

Either way, I picked up a new actuator and turbo from Cummins, and I'll have to clean my CAC of sludge before things go back together.