It is similar in design to the HD pickups. Not to be left out is the Ram 1500 EcoDiesel that also uses DEF. I will, however, point out a couple of areas of note on the earlier CC systems. There were not a great number of CC trucks built, and the system used on them was slightly different than the system used on the 2013-2019 pickup trucks. The Chassis Cab (CC) trucks also use DEF, and they started the use of DEF a couple years before the pickup trucks. Hopefully we can separate some myth from fact, fix a few trucks, and save some Ram Turbo Diesel owners a little money in the process.īefore we dig in, I suppose we should clarify the role of DEF in the 2013 and newer pickups. So it was set, in Issue 102 I was going to discuss DEF systems. It was nice to spend the time catching up and solving all the diesel world’s troubles. So my wife and I made a stop in Atlanta and had a great opportunity to share a nice dinner. It just so happened that I was going to look at a customer’s car in Columbus, Ohio, then flying on to Atlanta before heading to Asheville, NC for a visit with our son and daughter-in-law. After our conversation, I did not give it much more thought and was going to cover another topic in TDR Issue 102. It seems that the folks at Geno’s Garage had been seeing an increase in phone calls related to the high cost of repairs to their DEF equipped trucks, specifically for the DEF emissions components. The Turbo Diesel Register editor called me a couple of months ago asking some questions about DEF systems.