I am sure this question has been ask but I wanted to start a fresh topic. We all know how active fuel management engines have had their failures and lots of reports of burning oil and things of that nature, but my question is will the dynamic fuel management motors have the same problem since they are a redesign of the AFM engines with newer technology. I am sure the engines are still too new to tell this issue but I would be interested in knowing if anyone has had any issues with their new 2020 Silverado with the DFM system. I know the DFM system deactivates cylinders simultaneously and the AFM just shuts down 4 of the motors cylinders. But lets see what you all say..
ChevyZ712013
Active Fuel Management vs Dynamic Fuel Management
You're right. This has already been discussed. I don't think there have been any DFM failures reported on this site yet. I also don't think it is a complete redesign, and because of the way it works it has the potential to be equally as bad or worse than AFM.
It's the exact same system, except now with twice the number of garbage lifters.
They will have the same failures as the AFM motors. Perhaps they will be slightly better since they in theory aren't switching as often on the same 8 lifters. Or it could be twice as bad.
But its still a worthless system that will have issues.
They will have the same failures as the AFM motors. Perhaps they will be slightly better since they in theory aren't switching as often on the same 8 lifters. Or it could be twice as bad.
But its still a worthless system that will have issues.
The DFM design is intended to lessen the mechanical resonance that was prevalent in AFM engines which was known to cause shuddering. The main changes is in the software and the inclusion of the remaining 4 cylinders in the design. The internal engine components are the same, so they will likely have the similar issues.
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