Crankcase Vent Filter.
DTCs for CCV problems are: P1507 crankcase filter restriction. P1508 crankcase filter restriction—replaces filter.
For 2007.5, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019 Dodge Ram 6.7L Cummins
Time to change the CCV in your ‘07.5-’19 Dodge Cummins Turbo Diesel truck? Hold on, what is a CCV? The CrankCase Vent filter sits on top of the valve cover and, from what looks like last minute entry in the ‘07.5 Owners Manual, it requires inspection and/or changing every 67,500 miles. And according to Dodge, a message on your overhead console will alert you to the need to change the filter. Furthermore, should the crankcase vent system become clogged there are diagnostic trouble codes (DTCs for the uninitiated) that will be set causing a malfunction indicator light (MIL for the uninitiated) to come on. Specifically the DTCs for CCV problems are:P1507 crankcase filter restriction.P1508 crankcase filter restriction—replaces filter.If these codes are set the “Perform Service” message will illuminate on the overhead display.