D13 Regen/soot level?

There must be a problem 'cause it doesn't regen automatically while driving. May be boost leak,exhaust leak,or 7th injector plagued,or king of DPF sensor plagued...Various of reasons could cause truck not regen automatically. Your gauge shows its full 1/4. You are still good,but it is going to get full pretty soon. So,the best idea would be to take it to the shop to test it and figure out what could be a problem. If you research a forum you will find a lot of posts for the same issue. If you intent to figure it out by yourself,without computer,it will cost you a lot of time and headache.
Good luck..

 

Every truck I know of requires a regen when idling over night. Just normal operation, especially in colder weather. Although if you get on the highway before it requests a regen it should take care of it by itself.

 

The information on the soot level gauge confuses me as well...

Anyone know what the "A 23 4" stands for???......or the additional arrow about half way??

 

I think the arrow simply indicates when the DPF is considered "full".

I believe "A" is at the point an automatic regeneration would take place in an EPA2007 engine while running. "2" is where the DPF warning light will illuminate and the Information panel will alert "Parked Regeneration Needed" at the next available stop.

3 is where the DPF warning light will flash and you will need to immediately stop and perform a parked regeneration to avoid a derate.

4 is it's plugged to the point a parked regeneration isn't possible. You are in derate mode and you done ####ed up.


A little background on EPA2010 Volvo engines. They are designed to where the EGR reduces it's duty cycle to increase NOX levels. NOX allows soot to be oxidized at lower temperatures which means 95% of the time it will do just fine passively. Volvo removed the active regeneration programming from the ECU. Thats why the disable/enable regeneration selections are no longer there.

They didn't change the soot filter guage layout from EPA2007 to EPA2010 so it has the "A" even though there is no longet automatic regenerations. However with EPA2010 engines there's no longer an ash level guage.

Volvo then burns off the excess NOX with the DEF/SCR system.

Works pretty good most of the time.

It will only allow a parked regeneration if

A: the guage reaches level 2.

Or

B. The system detects low performance of the SCR system. In extreme cold, the exhaust temperature can be so low that the DEF actually crystalizes on the catalyst. When this happens, the NOX levels downstream go up. Volvo realized that this was a possibility with no active regen capability so the system was designed to request a parked regen when the driver information system flashed "SCR PERFORMANCE LOW. CHECK SCR SYSTEM TO AVOID DERATE". Doing a parked regeneration raises the temperatures in the SCR and vaporizes the crystals. Volvo calls it a "Sublimation Cycle".

The system won't allow a parked regeneration unless it's needed. The only way I know how is to override it using the Volvo link from a laptop.

The EPA2010 engines will kick into a high idle "regen" mode when idling during cold weather periodically to clean up the DPF/SCR. Usually lasts about 30 minutes. The "A" may indicate when that takes place for the newer engines. I don't know, I haven't ever looked when it's running that mode. I've only had it do it once in this truck since I rarely idle.

If it's constantly asking for a parked regeneration, it may be a faulty pressure differential sensor or plugged EGR cooler.

 

1.Yes idling is the worst thing for DEF/DPF systems, evidently the exhaust gas temps and pressures are not high enough during idling to burn off the soot.

2. Called Passive Regen while driving at speeds above 50 miles per hour, yes supposed to regen while driving.

3. For mine, (kenworth) I try to do a parked regen at the end of the day when the engine and exhaust temps are already nice and hot from drving all day so yes it is a daily maintenance thing for me. If I idle all night, I try to get up over an hour before I start my day and do another parked regen. Unlike the Volvo, mine has no way to tell me if it needs it or not except when driving around slow in city or parking lots I just know from experience how the exhaust sounds, that it is needing a regen or on the rare occasion it will display the extreme hot exhaust light which tells me it was in a passive regen and because we are slower than 50 miles an hour it stopped but don't go hugging the exhaust pipe.

4. On mine it either will or it won't do a parked regen, if it doesn't, it doesn't need it.

Now I was up in Detroit/Chicago for a few days last week, very cold so had to idle just about 24 hours day when I wasn't driving which was all 40-45 miles per hour so didn't meet the 50 miles per hour passive regen threshold. Check engine light came on and dirty DPF light came on. did multliple parked regens and some of them cut off early like 2 minutes displaying problems with delta pressure and egr plugged stuff like that. Got loaded and finally got down toward Missouri and could get back up to good speeds, dirty DPF light went out by itself and check engine light also went out. Stick to my routines for parked regens and check engine light comes on intermittently still but has been off for the most part down here in los angeles.

 

New trucks are stupid. I hate hate hate waiting for a regen to finish. I don't idle over night anymore because of this BS.

 

Well I hate new trucks to, so that's why I am rebuilding my 01 w900. All engine and diesel power. F the environment!!!!!

 

I know this is a old post but i bought the "OTR reset tool" game changer. Parked regen when i want, clear ghodt codes. Worth every cent.