Maintenance free Crankcase filter

[in2trux]

(10-26-2016 )Matt Wrote:  I know what a breather filter is for, but what benefit does this provide? I've seen talk of drilling holes in the stock housing but I'm not sure what the gain is. Can someone fill me in? I'm apparently missing out on something lol.

Drilling the hole is one of Rawze tricks on the old style to eliminate high crankcase pressure fault codes.
There is a sensor in the side of the housing and they act up like they all do, especially if you have high milage.

I had someone that is supposed to know better, watch me drill a hole in one and tell me I would blow my engine if I did. "Cummins need back pressure " I just smiled and went about my business.
While that is true to an extent on a stock engine, I wonder if he knows how much back pressure a dpf puts on the engine when its working right,let alone being clogged?

Drilling the holes in it prevents problems, saves wasted money and is harmless unless you think a little oil vapor is causing global warming