6.7 Excessive Regen cycles?

[ToddMcMilian]

Howdy gang, I did some searching on the forums and didn't see exactly what I am looking for so I wanted to throw this out there and get some feedback. I have an 08 MegaCab and on the weekends I have been doing runs down to the lake to do some work, its a 2.5 hr drive each way and I avg about 70 mph give or take. I have an edge cts programmer on the truck to monitor issues and I am seeing the truck doing regens sometimes 2 x on the trip each way. I never get any messages on the overhead in reference to the DPF state, just get the beep from the programmer and it indicates Regen has started and I watch it raise the exhaust temps and do its thing. I keep the exhaust brake on most always since I saw that is a good idea to help keep things a little cleaner. Truck appears to be running just fine but I can't help but think it is doing too many regens??? Truck is stock other than no muffler. I have cleaned the EGR just a couple weeks ago, little dirty but not sticking so I am inclined to think the truck isn't overly sooty in the exhaust...from what little info I gathered from the EGR state that is.. Is this normal cycling for the truck? Im still into my learning curve and this is the first diesel I have owned. I have an aftermarket warranty we bought with the truck so I haven't done any deletes but I def have my eye on the dpf as the first candidate when the warranty is done.

Thanks for any input!

 

[Jim W]

That's about normal for a 2008, 6.7L Cummins engine in the Ram. My truck when towing a 5er would regen about every 200 to 250 miles. This was the only time I was ever on the highway at speed of 60+ MPH. The rest of the time I was driving on city streets and country roads doing 45 MPH.

The overhead display will never tell you when you are in the regen process; the only way to find out is through a EGT gage or something similar. The process is to be seamless to the owner/operator when using the vehicle. I believe the only warring you could get is when you are approaching 90 to 100% DPF is full. If everything is working correctly the truck should go into regen before this happens, thus you will not see any warning.

 

[ToddMcMilian]

OK, that makes me feel better about it lol. I appreciate the info! It is seamless to me other than my CTS will beep and throw up the R and then I see the exhaust temps raising, otherwise I wouldn't have any idea it is going on.