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Automatic Regen too often

22PearlRamMegaHD said:
Got my Fleetguard report back, and let's just say the exhaust system/ dpf replacement makes me think it's not fixing the issue. Fuel dilution is 9.3%...
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mbarber84 said:
9.3% fuel in 2,800 miles?!:oops:
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Yep. Insane.

Crazy part is I was able to grab the service rep before they closed up for the night. His initial response was they replaced the exhaust today and drove 40 miles with no regen. I told him that doesn't surprise me with a brand new dpf, but even with the regen frequency I had at 20-30 miles between regens 9.3% is way high. I suggested they check the injectors and fuel pump before returning it to me, amd with a shrug he said he'd print the report and give it to the tech tomorrow to see what he says
 
22PearlRamMegaHD said:
Yep. Insane.

Crazy part is I was able to grab the service rep before they closed up for the night. His initial response was they replaced the exhaust today and drove 40 miles with no regen. I told him that doesn't surprise me with a brand new dpf, but even with the regen frequency I had at 20-30 miles between regens 9.3% is way high. I suggested they check the injectors and fuel pump before returning it to me, amd with a shrug he said he'd print the report and give it to the tech tomorrow to see what he says
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The more I dig into this problem, the more I’m inclined to believe that many many more trucks have fuel dilution issues and the owners are unaware. Probably explains why the cams, lifters, and pushrods are wearing at an accelerated rate on some of these trucks.
 
Picked my 19 2500 up from the dealer today. They found the cp4 fuel pump recall was not done correctly. Only 5 of the 6 flashes were done and allowing inadequate fuel pressure. They drove the truck for 25miles and the dpf soot level did not change. I just drove 50 miles home on the highway and I'm at 2 grams in the dpf only. Hopefully this solves it. I'm still betting on my maf sensor is failing since changing it allowed for passive regens. We will see
 
Just looking for some input here. Service rep shared my fleetguard report with the tech. Tech says the fuel dilution is the result of the failed dpf that occurred due to a failed MAF (never threw a CEL) and lack of diesel particulate sensor. 2700 ish miles on the oil. 9.3% dilution. With a record of that 2700 miles showing a steep decline from regens at about 300 miles immediately following oil change down to every 20 miles for the last 200 miles or so before leaving with the dealer nearly 3 months ago. The only regens that went longer was when I was told to drive it harder or pull a trailer. So I pulled a 34' camper to my hometown and back about 350 miles each way, but it regened the few days I was in town before the return trip.

Do you guys think that dilution is possible with the above facts? I basically had to tell them today I'm making note of their refusal to check the fuel pump and injectors for failure before they relented and agreed to do their jobs.
 
With over a quart of fuel in the oil, I would change it and then change it again shortly afterwards. That’s a lot of fuel for that few miles.
 
OLEJOE said:
With over a quart of fuel in the oil, I would change it and then change it again shortly afterwards. That’s a lot of fuel for that few miles.
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Because the issue was caused by a warranty issue they are changing the oil before releasing it to me. Originally they were not, but I protested. I gave them a Donaldson filter to put on so I should be able to easily confirm the change.
 
22PearlRamMegaHD said:
Because the issue was caused by a warranty issue they are changing the oil before releasing it to me. Originally they were not, but I protested. I gave them a Donaldson filter to put on so I should be able to easily confirm the change.
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I would still change it again if for nothing else but a flush. I would do my best to give it a zero percent fuel to start.
Im going to do an OA on my next oil change just to make sure it doesn’t have any problems. That will be its fourth oil change in 18k miles and will have about 7500 miles on that one.
 
22PearlRamMegaHD said:
Because the issue was caused by a warranty issue they are changing the oil before releasing it to me. Originally they were not, but I protested. I gave them a Donaldson filter to put on so I should be able to easily confirm the change.
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I would think that anytime there is something that they diagnose, that could contaminate oil, they should be replacing it anyhow. Unfortunately, your truck sounds like mine with the regen cycles.

Just today I drove in to pickup my truck and was told that they "finally saw what I was talking about with the regen frequency". Apparently, the goal is to replace a random part, clear the code, see if it pops up on a test drive and if not just hand it back. After my second set of new injectors, I would think they would look to see what would cause them to constantly fail, but they just blame bad injectors and move on.

I have little faith that this will ever get fixed on my end, but the fact they actually saw first hand that it Regens so often is a step in the right direction. I've only been telling the that for three years and the regen frequency code has been the culprit the entire time. Hard to believe they didn't see it on the thousands of miles added to the odometer via test drives.
 
22PearlRamMegaHD said:
Just looking for some input here. Service rep shared my fleetguard report with the tech. Tech says the fuel dilution is the result of the failed dpf that occurred due to a failed MAF (never threw a CEL) and lack of diesel particulate sensor. 2700 ish miles on the oil. 9.3% dilution. With a record of that 2700 miles showing a steep decline from regens at about 300 miles immediately following oil change down to every 20 miles for the last 200 miles or so before leaving with the dealer nearly 3 months ago. The only regens that went longer was when I was told to drive it harder or pull a trailer. So I pulled a 34' camper to my hometown and back about 350 miles each way, but it regened the few days I was in town before the return trip.

Do you guys think that dilution is possible with the above facts? I basically had to tell them today I'm making note of their refusal to check the fuel pump and injectors for failure before they relented and agreed to do their jobs.
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Zero chance that the particulate matter sensor had anything to do with fuel dilution. The sensor has absolutely no control over anything fuel related.

If the failed DPF caused regeneration to happen more often than it’s needed, then I can see where that may have caused some fuel dilution, however nearly 10% fuel in less than 3,000 miles is egregiously high. More than I would assume would be present even with frequent regeneration. I suspect you have a fuel system related leak. Either the HPFP seal or one (or more) injectors malfunctioning / dripping.
 
19Ram2500.Mega said:
I would think that anytime there is something that they diagnose, that could contaminate oil, they should be replacing it anyhow. Unfortunately, your truck sounds like mine with the regen cycles.
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This should be the way warranty work is handled, but unfortunately Ram / Stellantis penny pinches when it comes to wholesome and thorough warranty work. If the engine was covered by Cummins under their warranty program, I can assure you the engine oil would be changed anytime a failure occurred that represented the potential for engine oil contamination.

It’s a wonder Cummins hasn’t already pulled the plug on their contract with Ram over these engines. Ram’s lackluster warranty and repair service is giving Cummins a bad name, and that’s a real shame.
 
Has anyone reached out directly to cummins on this issue to gather their take?
 
19Ram2500.Mega said:
Has anyone reached out directly to cummins on this issue to gather their take?
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Cummins isn’t permitted to do anything or release any information to the public regarding these engines. They have some sort of legal binding agreement.

As far as Cummins Inc. is concerned, when it comes to the 6.7 in the Ram, it doesn’t exist the minute it leaves their factory.

Which is incredibly unfortunate because you’d get considerably better service and information if they were permitted to handle all warranty repairs pertaining to the engine and emissions system.
 
mbarber84 said:
Cummins isn’t permitted to do anything or release any information to the public regarding these engines. They have some sort of legal binding agreement.

As far as Cummins Inc. is concerned, when it comes to the 6.7 in the Ram, it doesn’t exist the minute it leaves their factory.

Which is incredibly unfortunate because you’d get considerably better service and information if they were permitted to handle all warranty repairs pertaining to the engine and emissions system.
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I understand the legal context.

is is, however, unfortunate. This sort of thing from a third party (ram) only hurts their brand....especially when they plaster cummins on the side of the trucks as a sales point.
 
Let us not forget the EPA and CARB, their foul stench is all over these problems. These agencies, all government agencies, actually, are populated top to bottom with petulant, ignorant, and insufferable children. Children with no adult supervision and zero accountability for anything they do. Now THAT is the root of the problem.
 
mbarber84 said:
Zero chance that the particulate matter sensor had anything to do with fuel dilution. The sensor has absolutely no control over anything fuel related.

If the failed DPF caused regeneration to happen more often than it’s needed, then I can see where that may have caused some fuel dilution, however nearly 10% fuel in less than 3,000 miles is egregiously high. More than I would assume would be present even with frequent regeneration. I suspect you have a fuel system related leak. Either the HPFP seal or one (or more) injectors malfunctioning / dripping.
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I guess it's a good thing I bought 6 gallons of oil last time NAPA had premium blue on sale...
 
So the tech is saying there is nothing wrong with the HPFP or injectors but I suspect they didn't check them. Call me jaded, but I have a really hard time believing 10% fuel dilution in 2700 miles is possible with the regens i saw. I'm going to change the oil one more time when they release it to me, then change it again in 3k miles plus send out another OA to fleetguard. All this while monitoring the oil level with each fuel up
 
22PearlRamMegaHD said:
So the tech is saying there is nothing wrong with the HPFP or injectors but I suspect they didn't check them. Call me jaded, but I have a really hard time believing 10% fuel dilution in 2700 miles is possible with the regens i saw. I'm going to change the oil one more time when they release it to me, then change it again in 3k miles plus send out another OA to fleetguard. All this while monitoring the oil level with each fuel up
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If they can’t provide evidence that they did indeed send the injectors out to be tested, or they performed one of a few different fuel related tests on the truck in the shop, I would have a hard time taking their word on it. 10% fuel dilution in under 3k miles doesn’t happen by chance alone, and I’d also have a really hard time believing that much fuel came from regeneration unless the truck lived in a perpetual state of regeneration that entire 3,000 miles….and even then, I would find it hard to digest. How many miles are on the truck currently?
 
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