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DPF clogging up is a symptom not a problem. Sounds like on the first two DPFs the dealer just replaced the failed DPF but clearly never fixed the problem. Or the DPF’s were not even failed as mentioned above. I would it to a real diesel mechanic or at least another dealer, or better yet, get your tools out and start diag’in! ;)

Something else is wrong, DPFs don’t just fail on their own.

Also i would put the stock air box back on, the china tube is just adding a variable to the equation right now. they don’t do anything anyways right?
 

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No. 😖
Last month Dodge replaced the DPF again (this is the 3rd DPF). Dodge also replaced the fuel pump at the same time. And I put the factory air intake back on. We are planning a trip with the 5th wheel next month. That should be a good test of both.

Haven't heard anything more from RamCares.

I suspect it is an ERG related issue. I hate the idea of recirculating dirty exhaust back into the engine.

yes... the DPF getting full is just a symptom, not the problem. Continuing the just replace DPF after DPF is foolish.

Yea most of the time its EGR valve is sticking open a little and letting in way too much soot. I would fully pull the EGR system, cooler and all, then preform the service on it to clean it all out and inspect. I think they stopped requiring newer trucks to do the service. On older trucks it was the 67,500 miles service. But it would still apply.


at minimum pull off the EGR valve and inspect. A bath in purple power wont hurt. its super easy and the most common suspect.


I do admit I dont know much about the changes in the newer trucks, so someone correct me if I'm flat out wrong here.
 
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