Regen notice

[skorski]

2014 3500 76K driving along on back roads heard a ding and the dash said reggen in progress partic filter full 100 percent .this is the first time in 76k did not know what to do so i drove it about 7 miles until it rang and said compleat,

 

[Dasmoeturhead]

Good to know. My 2015 is over 78k now, and no regen message yet. I also finally just got a 2nd car, so the big girl will be resting more often.

 

[kthaxton]

Perfectly normal operation.

 

[jadssh]

That’s good to know. Does all the 3500’s indicate on the dash when a regen is occurring?

 

[kthaxton]

Does all the 3500’s indicate on the dash when a regen is occurring?

It only gives you an indication if the DPF has reached a critical level (i.e. many short trips with inadequate drive time to complete normal regens), otherwise it performs regens as needed and doesn't give you any indication of such.

 

[jadssh]

It only gives you an indication if the DPF has reached a critical level (i.e. many short trips with inadequate drive time to complete normal regens), otherwise it performs regens as needed and doesn't give you any indication of such.

I guess I’m confused then. The OP indicated a notice on his dash of a regen in progress. maybe the 2018’s don’t give that notice, I don’t know.

 

[kthaxton]

Your truck will normally perform a regen as needed and you will not know it unless you happen to smell the excess fuel or if you have installed a digital monitor (like an Edge CTS) that informs you of a regen.

If your truck requires a regen, and your driving frequency/habits don't give your truck enough ample opportunity to perform a full regen, the DPF will start to clog until it reaches a preset point at which it will then give you the warning that a regen has begun and that you should continue to drive so it can finish the regen.

For someone that works their truck pretty hard, or does very few short trips, their truck will perform regens and they'll likely never know about it. For example, my commute to work is about 20 minutes of highway driving, in 60k miles, I have never had the regen indication on the dash, however I know that it regens somewhat frequently. Sometimes I can tell, usually I can't.

 

[Lynx0849]

I have had a few times when the MPG gage is reading lower than it should. Easy to see on the flats on the highway. I have assumed it is running a regen.


Pro

 

[jadssh]

Your truck will normally perform a regen as needed and you will not know it unless you happen to smell the excess fuel or if you have installed a digital monitor (like an Edge CTS) that informs you of a regen.

If your truck requires a regen, and your driving frequency/habits don't give your truck enough ample opportunity to perform a full regen, the DPF will start to clog until it reaches a preset point at which it will then give you the warning that a regen has begun and that you should continue to drive so it can finish the regen.

For someone that works their truck pretty hard, or does very few short trips, their truck will perform regens and they'll likely never know about it. For example, my commute to work is about 20 minutes of highway driving, in 60k miles, I have never had the regen indication on the dash, however I know that it regens somewhat frequently. Sometimes I can tell, usually I can't.

Thanks Kthakston, that clears it up for me. I’m just turning 4,000 miles on my 3500 and have a trip in a week to Montana toeing my trailer, so that should give her a good workout.

 

[kthaxton]

Thanks Kthakston, that clears it up for me. I’m just turning 4,000 miles on my 3500 and have a trip in a week to Montana toeing my trailer, so that should give her a good workout.

Yep, and towing often provides what's called a passive region, meaning the computer hasn't changed anything in the fueling, but the engine is working hard enough to create enough of its own exhaust heat to not only minimize the amount of soot created, but to also burn off what is buildup in the DPF.

 

[Wiredawg]

I know C&Cs are different animals. My 5500 went through quite a bit of DEF on our recent 7500 trip pulling 20K lb fiber. Using about 2.5 gallons per 1000 miles. I maintain a fuel log, so think I'm going to start tracking DEF usage. My 09 4500 hardly had to regen because like this new truck, about 95% of my driving is towing heavy. I'm still learning about these DEF trucks. Cheers, Ron