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exhaust system regeneration process

143K views 191 replies 63 participants last post by  Demicortez 
#1 ·
My 2014 diesel gc has gone thru the exhaust system regeneration process at least twice and i have less than 1500 miles on the car. Is that a normal interval?

Both times i have been able to continue driving like the Evic message says to do but what happens if someday i am in a position where i have to park and shut off the engine while the regeneration process is going on. Is it bad for the car?

Thanks.
 
#175 ·
I just picked up my Summit from the dealer after the “Check Engine” light came on. The dealer performed a “force regen” and all is fine, for now. However, I am worried that this might become a recapitulation of my terrible first year of ownership which consisted of repeated dealership visits including multiple reprogramming, 2 new converters, etc.! But, since then, until now at 65K, no problems. I had hoped the factory had solved this problem. I really like this car, but I refuse to go through a repeat of that first year. It would definitely be costly, but for the first time, I have begun to think about dumping this car and getting a new GHC with the hemi or maybe replacing it with another Expedition. Not really looking forward to either, but your comments about the possible reoccurrence of this problem at 60-70K in the diesel is of great concern.
 
#176 ·
Well they did the same for mine (Forced Regen) and replaced the DPF particulate sensor under Maxcare for 100.00.. Worked for 2 weeks and CEL is back. Got the call today that they now want to replace the DPF filter itself... ( Which is what I suspected when I took it in 2 weeks ago...) Filter is on back order till Oct 20th at the earliest…. And he said it could easily be longer ! I don't understand that when I find them in stock at dealers appx 100 miles away...
I do think if I get this replaced that I will be good for another 50-70K on that component at least. The adviser says they have 2 Diesel techs and they spend 80% of their time working on Emissions related issues mostly with Eco's and Some with Cummins...
The fact that these are backordered probably means that many units are now reaching the miles that these filters are showing they will last. Newer versions "could" be better or no better really. There is small satisfaction that it IS covered by the 8/80 warranty, but shouldn't this thing last 150K miles?
This is a little disappointing and if even more things crop up, It could force me to look at another brand in 2020 unless they prove some dramatic improvements in the Eco D arrangement.....:mad:
 
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#177 ·
Update....Finally got a DPF filter from a dealer in all places, eastern NC ! Believe it or not they sent it FedEx and it got out of there Thursday night! Should hopefully be back in gear by mid week next week....
 
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#179 ·
P2002 usually ends up with a new DPF filter under the emissions warranty, they won't want to do that first,but it will come back again and that will be the final answer.....


Sent from my iPad using JeepGarage
 
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#181 ·
So about 4 months ago my 2014 jeep went into limp mode after I got the "...filter nearing full warning..." for all of about 10 minutes before going into limp mode so I took it into the dealership. I was told I needed a new exhaust filter and they needed to do a manual regen. Everything has been pretty good since then. Since that trip to the dealer, up until yesterday I had only received one message that the diesel exhaust filter was nearing full and that I needed to drive safely at highway speeds. I jumped on the highway and about 20 minutes later it said it was complete and all was well.

Yesterday I got the message again. So I did the same. It changed from "... it's near full drive at highway speed..." to "... regeneration in process continue driving..." once I get my speed up which is normal. After about 15 minutes a different message comes up and then goes away, I assumed it was the it's complete you're all good message. Today I get my diesel gas tank filled up because the low fuel light came on yesterday and shortly after leaving the station the message pops up again that I need to drive at highway speeds. I now believe that possibly why the regen in progress message went away yesterday is because my low fuel light came on so it dismissed the filter nearing full message.

So I jump back on the highway after getting fuel and drive at speeds well above 40 mph for 30 minutes and the message I was getting never changed from "...drive at highway speeds..." to "...in progress continue driving..." as it normally does. At some point I noticed the check engine light is now on.

So now I am worried that it isn't starting the process when I get to highway speeds and driving is just continuing to fill up the filter. I feel if this is the case it's definitely going to put me back into limp mode sometime soon and then I will be back at the dealer shelling out more $$$.

Does anyone have any advice?

The other question I have is my message never says % full as I have seen other people posting. It just says "nearing full", is that normal?
 
#182 ·
So about 4 months ago my 2014 jeep went into limp mode after I got the "...filter nearing full warning..." for all of about 10 minutes before going into limp mode so I took it into the dealership. I was told I needed a new exhaust filter and they needed to do a manual regen. Everything has been pretty good since then. Since that trip to the dealer, up until yesterday I had only received one message that the diesel exhaust filter was nearing full and that I needed to drive safely at highway speeds. I jumped on the highway and about 20 minutes later it said it was complete and all was well.

Yesterday I got the message again. So I did the same. It changed from "... it's near full drive at highway speed..." to "... regeneration in process continue driving..." once I get my speed up which is normal. After about 15 minutes a different message comes up and then goes away, I assumed it was the it's complete you're all good message. Today I get my diesel gas tank filled up because the low fuel light came on yesterday and shortly after leaving the station the message pops up again that I need to drive at highway speeds. I now believe that possibly why the regen in progress message went away yesterday is because my low fuel light came on so it dismissed the filter nearing full message.

So I jump back on the highway after getting fuel and drive at speeds well above 40 mph for 30 minutes and the message I was getting never changed from "...drive at highway speeds..." to "...in progress continue driving..." as it normally does. At some point I noticed the check engine light is now on.

So now I am worried that it isn't starting the process when I get to highway speeds and driving is just continuing to fill up the filter. I feel if this is the case it's definitely going to put me back into limp mode sometime soon and then I will be back at the dealer shelling out more $$$.

Does anyone have any advice?

The other question I have is my message never says % full as I have seen other people posting. It just says "nearing full", is that normal?
 
#185 ·
I took it out after sitting in the garage for a day and sure enough about 5 minutes into my drive while above highway speeds none the less, boom, full...see dealer... limp mode. Drove it across town today to the dealer. We'll see what happens.

The one thing they did ask about was the oil life. One thing I forgot to mention. My oil change required light came on all about the same time this started happening. I suspected that maybe that had something to do with why it wouldn't start regenerating. So I reset the oil life just to attempt to get it to start the regen and then go get an oil change. Even after the rest of the oil life warning it still wouldn't regen. I am also remembering the last time that I had the manual regen done that I also needed an oil change. I think there is some correlation of needing and oil change and the regen not working. Anyone else have this experience or hear of this?
 
#183 ·
You may have a bad DPF sensor… If it's not registering properly, it can't trigger regens properly. Surprised they wouldn't test/replace this before replacing DPF....
 
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#184 ·
I finally threw in the towel on my ‘14 Summit diesel. The CEL came on for the 4th time. At 70K while on a 1200+ mile road trip, I stopped for a break. When I restarted, the CEL was back on. By the way, my JGC never has displayed any alert pertaining to regeneration. When the service center scans the CEL alert, the code is always about the DPF. The dealer service center, the last 3 times, sends the car history data to MOPAR (?) for a “STAR” consultation. The first 2 times the result was that nothing is wrong with the car. The first two STAR consults blamed our “excessive” idling. The last one blamed our failure to continue driving while the regeneration was occurring. Mind you, my car never has displayed anything on the evic concerning anything other than CEL! For the second time since purchased new, I called the Jeep customer service center, and they opened a “case” and ultimately assigned a “case manager.” In both cases, this system was totally a waste of time. By the way, when I raise the point that my car never displays a regeneration alert, everyone juast seem puzzled.

Yesterday, I traded my diesel in for Hemi 2018 Hgih Altitude. What a relief, even though I figure the diesel purchase costs me around 30K in in lost value! I always have liked the JGC platform, but the total lack of factory support for the diesel was, for me, a cause of too much distress. Even though trading the diesel in early (I usually keep cars for many years) was costly, I am now much relieved. For those of you still hanging in, good luck. I also appreciate the advice and consultation I have received on this forum. Thanks.
 
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