Wow, how frustrating. Sounds like one definition of insanity - keep doing the same thing and hope for different results. If possible, take it to another dealership. Perhaps open a case with RAM Cares.
I’m guessing since it’s the third DPF and problem persists that it’s something else. Could be so many things - bad injector causing excess soot prematurely clogging DPF. Bad DPF pressure sensor telling the computer it’s plugged when it’s not. Intake air leaks altering the air/fuel ratio causing excess soot. Bad EGR. Excess oil or coolant entering the combustion chamber. And on and on and on.
I think it’s sound advice to start with the stock intake. Even if it has nothing to do with it, the dealership may eventually blame it for the problems.
I’m guessing since it’s the third DPF and problem persists that it’s something else. Could be so many things - bad injector causing excess soot prematurely clogging DPF. Bad DPF pressure sensor telling the computer it’s plugged when it’s not. Intake air leaks altering the air/fuel ratio causing excess soot. Bad EGR. Excess oil or coolant entering the combustion chamber. And on and on and on.
I think it’s sound advice to start with the stock intake. Even if it has nothing to do with it, the dealership may eventually blame it for the problems.
