2013 Ram 6.7 With Some Motor Issues
I hate the dealer but that is where I am headed for an electrical issue that makes my volume and switches not function. But, my concern is that I am getting poor mileage, I hear a lot of clattering, a...
Forum Discussion
FishOnOne wrote:
One has to ask why Cummins/Holset can't fix this problem. This problem has been going on since the 6.7 was introduced.
They did come out with an updated actuator, but heat is the major culprit here. Back in 2007 when they came out with the 6.7L, it actually met the 2010+ emissions while the DMAX and PSD only met 2007. They did this so they did not have to spend money engineering the engine again to meet another round of emissions regulations. However, this caused a lot of issues with carbon build-up in EGR valves and the turbo because these systems were basically doing what the EGR and SCR do today.
This also caused a lot of heat which burns up the Cummins electronic actuator. The reason why they went with an electronic unit was that they needed to meet the aforementioned 2010+ emissions without an SCR and they needed better control of the air pulling through the EGR and heavy use of the EGR created more soot. Ford and GM did not use a fully electronic actuator until recently. GM with the L5P and Ford with the 2021 PSD so time will tell if they too have the same issues once the trucks get more miles on them.
Ford also had turbo/heat issues with the 2011-2014 trucks, but it was not related to the VG actuator.
