CM871: Is it safe to run truck without a crankcase pressure sensor?

[RMezaJr]

(04-06-2022 )Rawze Wrote:  By the way ...

That crank case filter system is nothing but a euro-5 (emissions system) menace to the ISX engine and it provides ZERO protections for the engine. It is also known to contribute greatly towards premature cam failures and turbocharger problems as the engine gets older and the filter does not properly keep up with crank case fume volume any more. that or if someone does not change its over-priced rip-off of a filter often enough, it causes these types of enigne damage too.

So to just to answer your question in the title ... it is perfectly safe to run the engine without the crank case filter, and therefore the sensor, as long as you have installed a maintenence-free crank case filter from cummins, or if you have permanently bypassed the paper filter in some other way.

maint free filter: http://rawze.com/forums/showthread.php?t...50#pid8950

I have the maintenance free filter. Was just making sure the sensor wasn't required or perhaps sent important data do the ECM or something of that nature. Thanks again, I will still fix it since that check engine light is annoying.