Why regen so much?

SKL Trailers · Mar 24, 2013

I got a brand new 2014 Coronado with a DD 15 engine, while I was setting the truck up with all my stuff it was probably running for 4-5 hours and then the check engine light came on and the regen light, so I did a parked regen, took about 40 mins and all was good, then yesterday I drove it 1000 km's and parked for the night, 8 hours and 45 mins later I was woke up by the truck shutting itself off, I went and looked and the check engine light was on as well as the stop light and regen light, so I started it and did a parked regen again, this time it only took about 15 mins and it was good, do I have to do this every night? it's too cold here to shut it off at night, my Volvo would do a regen itself at night if it needed it, can it be set to do it on it's own, we get -30 celsius temps here all the time in winter and a lot of times the truck runs for a few days if I'm stuck in a storm and the roads closed or whatever, thanks for any help, I can count on one hand how many times I did a parked regen on my Volvo.

ironpony · Mar 24, 2013

SKL Trailers said: ↑

I got a brand new 2014 Coronado with a DD 15 engine, while I was setting the truck up with all my stuff it was probably running for 4-5 hours and then the check engine light came on and the regen light, so I did a parked regen, took about 40 mins and all was good, then yesterday I drove it 1000 km's and parked for the night, 8 hours and 45 mins later I was woke up by the truck shutting itself off, I went and looked and the check engine light was on as well as the stop light and regen light, so I started it and did a parked regen again, this time it only took about 15 mins and it was good, do I have to do this every night? it's too cold here to shut it off at night, my Volvo would do a regen itself at night if it needed it, can it be set to do it on it's own, we get -30 celsius temps here all the time in winter and a lot of times the truck runs for a few days if I'm stuck in a storm and the roads closed or whatever, thanks for any help, I can count on one hand how many times I did a parked regen on my Volvo.
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No... that isn't normal. The DD15 is a very clean engine, and you shouldn't have to do a parked regen under at least 100,000 to 150,000 miles. You may have something wrong with the regen system... if there was enough of a pressure difference across the DPF to require burning out the ash, I'd expect it would have done a simple rolling regen on a new truck.

Numb · Mar 24, 2013

one of our new trucks ,Freightliner,was in the shop for a regen issue.

was some sensor to detect if a regen was needed.

wasn't working right and truck would shut down.

when the burn chamber gets old it needs to removed and cleaned.

you'll know when the regens are more frequent. about 150K-200K miles on a Volvo/D13

I've got an older ,09, Volvo. pre DEF

don't want a new one.lol

it does everything by itself. no DEF , just squirts diesel and burns it. all by itself.

good luck to ya.

ironpony · Mar 24, 2013

The ECM on a DD15 will turn on the Check Engine lite at 300,000 miles with a code of 1625 to let you know it's time to clean the filter. Otherwise you can tell from the frequency of the parked regens. A new truck shouldn't be needing to do that... it could very easily be a bad sensor.

PackRatTDI · Mar 24, 2013

Might be the pressure differential sensor, the one that lets the ECM know its time to run a regeneration cycle. Those seem to be the usual culprit in the DPF systems. It may be giving the ECM mixed signals.

My last truck was a 2011 Volvo with a pre DEF Cummins ISX and it went from running a regen once a day to running them every 150 miles. Now I have a 2011 Volvo with a D13 that uses DEF and those engines don't run regen cycles on the road.

flood · Mar 24, 2013

we had a truck that couldn't regen when you were driving when it was that cold... the system just couldn't get hot enough to work with the cold wind hitting it, so 1st i would try a parked regen when your done for the day 2nd if the regem isn't running as long as it should you need to get it to the dealer, odds are the dozer injector is going bad

SKL Trailers · Mar 24, 2013

Thanks guy's, I tried to get it looked at in Fargo but with it being Sunday they closed at 3pm today, I will try again tomorrow, trucks running great other than that, just seems to not like to idle for more than about 7 hours, it's noisy compared to the Volvo I had and I liked the Volvo better all around so far, only got about 16 hours of driving time in it so far though, it's starting to grow on me a little, if nothing else it looks good, lol.

It's kinda funny, all my non truck driver friends think it's older than the Volvo I had, lol, it does have a older look to it I guess.

At least I had some good roads yesterday to try it out for the first time, haha, I am so done with this winter... it just won't quit.

steelinsteve1 · Mar 24, 2013

Beautiful truck by the way. I have heard that the DD15 is a good engine, I just don't understand them yet and the complexity puts me off; I still have love for the Series 60 I guess. Do you have an APU? It seems that all the current generation engines have no tolerance for excessive idling ( all OEMs ) and my thought would be to have an APU keep the engine and cab warm.

Cat sdp · Mar 27, 2013

Any updates .......... Have heard that the new DD were the best of the new ( I won't say it) .

Please say they got you right in ,and fixed it in one try........

That is a nice looking truck...wish you the best of luck with it !

25(2)+2 · Mar 27, 2013

Read the manual and idle at 900 RPM, it will help some, but the DD15 doesn't seem to idle as well, although the DPF is also smaller and regens take less time. Mine never takes even 10 minutes, it seems to vary from talking to other drivers, mine seems to take the least to regenerate.

Mine will run 9 to 11 hours if it is really cold before it needs it but it will shut down if I don't catch it within an hour or so of the regen needed light coming on.

I just restart it with the shutdown override and do a parked regen. If it's really cold, and the coolant temp isn't up above say 180 degrees F it will also foul the filter faster, get a winterfront, watch the coolant temp and idle above 900 if needed, it will idle back when it gets warm enough. I only had that happen once out in the wind in single digit temps with the winterfront on. I haven't had to do a parked regen except when idling no matter how cold it has been.

At almost 70 thousand miles now, and it seems to need less intervention and is running better than when new.

The engine has a different sound that takes some getting used to, but I like driving it, there is something about the responsiveness that I would miss driving anything else I have driven to date. Easiest shifting truck I have driven and it's even a 10 speed .

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