I have never seen anything in my DIC about regeneration what-so-ever and I have over 21,000 miles.

 

Same there in not an indication of Regenmode besides higher idle / TERRIBLE MPGs / smell
I am above 14K miles

 

I had never experienced a warning or anything whenever I was experiencing a regen cycle and I have shut it off before whenever I noticed it going through a cycle and it just started right back up whenever I got back in.

 

I am also in the boat of "I have not seen any warnings." I have about 1800 miles on the truck. Had it for about 2 months. The only time I notice the regen is on hwy where the MPG is at mid-teens. And maybe once in a while, smell.

 

Mines come on. Its just a warning. If you interupt it like arriving at work, dont worry about it. It will continue when you het back in. Just point and let her rip for 20 min. It wont go into limp mode unless ignored for awhile.

 

P.s. If most miles are highway youll never see it. Idling and stop and go traffic will trigger it. I let mine idle a lot because I hate the cold.

 

new member traveling from ontario to florida had( cleaning exhaust filter must continue driving) come on , on I75 at 70mph for past 6 hrs called ts and was told to keep driving don,t worry going through smoky mts reduced power came on and the big truck behind me was not happy when i slowed down on long hill because truck had no power called ts and they found nearest dealer they tried to regen by letting run at high rpm for 30 min with no success computer said customer fault not covered by warranty they did not know what to do ,it was 5pm told to drive to knoxville with reduced power .find a motel and go to reeder chev at 7am and hope they will look at it as they have a diesel shop after pleading my case they regen it two times and said it,s fixed now 10am but not bad , about half way to atlanta engine light came on called ts on onstar told to keep driving and take to dealer in next 7 days ,went to chevrolet center inc in winterhaven fl on fri they could not look at it till mon, called me at 10am mon said needed part sensor no. 55590140 available in michigen took to friday to get it had to go back to ont on monday missed trip to keys and cannot figure out why it takes 5 days to get small part from mich to fl truck had 7000km on when i left now has 11000 got home no problem also not sure why tech computer said no warrianty as they did not know what to bill me for and did not make up a work order

 

I’m starting to have a similar issue with my 2017 Colorado Diesel 2.8L.
I almost 47,000 on mine and I’ve had it 3 1/2 years. I’ve never had the Cleaning Exhaust Continue Driving until last week. And it immediately went into Limp/ Low Power mode. I took it to the Dealer in Lake Wales, but haven’t heard anything since last Thursday. Did warranty ever cover any thing?

 

Wow sorry to here that. Definatly not supossed to do that. Read there was faulty part which is what I was thinking before I read that far. Unfortunatly dealers dont seem to be up to speed on these yet. Hopefully nothing like that happens again but sensors do fail. I have a bad nox sensor on my big truck, 900$ sensor. Oh yay !

 

For my nox. Probably comes on if I fart with the windows up.

 

What are you driving?
You seem to have a different vehicle than the res of us.
We are all talking about the 2016/17 GM's Chevrolet Colorado 2.8l Duramax & GMC Canyon 2.8l Duramax
(Babymax I prefer - There is also Littlemax and Minimax)

 

Cant do much if a sensor failes. For future maintanence which may help you not see certian problems is: When your mileage gets up there say 80000km or so. Remove egr valve and clean it. Also doser valve and any upstream sensors including MAS. They all work together and a day and a case of beer will save future headaches.

 

As far as manual saying keep driving-Thats if possible. Its not always possible to keep driving. It will restart cleaning on next drive. Of course when working properly.

 

7000 miles, I've never noticed a thing, warning, smell...nothing. Most of my miles are highway, understand that makes a difference. But I never noticed it in my Silverado 3500 either

 

I've never had a message to keep driving but I did one time to finish a regen. Not sure if it was necessary but I hope to never take my truck back to the dealership.

As I was getting home one evening the idle was higher and I turned off the truck and it had a bad smell, I figured it was doing a regen. I knew I had to make several short trips the next day, so I left about 45 minutes early and cruised around until it was complete, using mpgs as my indication of the cycle finishing.

 

Yes thats what I have. But if you re-read what I posted you will see I refered to my big truck for the bad sensor. Have been dealing with def for some time.

 

I have smelled my colorado at times also. Once it goes into clean mode it gets really hot. I assumed it was the underspray I had done. Just guessing though. To lazy to look.

 

There are 2 different types of regen. 1 is a passive regen. You will not get any display when it is doing a passive regen, this will occur every 200-350mi. Passive regen will only work if you do not do a lot of short trips, people that do a longer commute or frequent highway driving may never see the message..."Cleaning exhaust filter continue driving " If you do a lot of short trips, the truck will go into an active regen, this is when you will see the message.
I do a lot of short trip with my truck... It went into active regen at approximately 3200 miles, fortunately I am self employed and was able to drive the truck until the message went off.

 

I had the (cleaning exhaust filter must continue driving) come on after 4hr straight driving, continued driving for another 2hrs , till reduced power sign came on. First dealer tried to regen with no success,second dealer regen 2 times second time it worked . After driving another 2hrs engine light came on,drove another 6hrs to third dealer were exhaust filter sensor replaced.It looks like you can drive about 10hrs after a regen before you get reduced power if your sensor shorts out. I was driving from ontario to florida all at 125km(70mile) on i75. My diesel fuel filter went from 85%to 35%on this trip and i wonder if i got into bad fuel and this may have caused my problem with sensor? any thoughts

 

mine now hasat 5000 miles. I took mine in for the first service. They told me they had to order a part and to bring the truck back a week later. Turns out the damn thing hasn't been regenerating since it left the assembly line! Which threw of the air fuel ratio from running what "they set up as a dirty exhaust detection sensor" of sorts. So now that hopefully they have put on a part worth a crap to control the other hippy crap placed on the emissions that effect the air fuel ratio, I might see what this other guys are seeing for economy. Might want to get yours checked. And like 456tool it took them a week to get the part. The device manager said they have a message about this only they can see, but that steered him in the right direction based on my exhaust smelling complaint. Love the little bastard but it is starting to get a little frustrating.

 

(copied from my post in the MPG thread)
To complete a Regen faster, shift down a gear, get hard on the pedal, then coast down, do this for 6-10 miles, and Regen is complete. Make a conscious effort to NEVER park the truck overnight when a Regen is due, the moisture from dew will make the carbon buildup into a mucky muddy mess that takes even longer to burn off.

(Removed dangerous info)

 

When in town I will do same as far as dropping a gear and running higher rpm. Seems to work, as far as increase in power and gain in mpg by adding oil to fuel oil? I can't prove you wrong and one day I may try it but I have my dought.

 

Would adding oil be the same as adding something like Howe's or Power Services diesel treatment? Since they are both making the fuel slicker, or less dry?

 

Please disregard my previous statement about oil. I will delete it. Researched further (I did it in my Cruze and had no I'll effects over 50k miles) but it can shorten the lifespan of the dpf, and can clog the injectors.

 

x]

 

I gotten past the first 3 or 4 regens due to driving alot on the hwy. Yesterday i was in rush hour traffic and basically stuck. The truck eventually went into Limp Mode, which reduces your low end tourque causing it to take a while to get up to 60-70 mph. Sucks up hills etc. I thought i could drive it around and eventually reset it but after a long day on the road, i took it into the dealership where they said there was a recall on the DPF sensor. Now i am in a base model Canyon...seriously. Hope to get it back today as i have to tow a camper up to Clemson for the NC State series tailgate this weekend for baseball. Other than this, i had an issue last year with a thermostat covered by warranty but i love the truck.

 

Today's diesels with all there exhaust treatment sensors and DPF ect are no good if you do a lot of city driving....

They need heat and a load on the engine to drive the exhaust temperature up to burn off the Soot.

If you spend a lot of time in stop and go traffic the DPF will plug up very quickly
If you spend a lot of time over landing running at slow speeds the DPF will plug up very fast.
If you spend a lot of time on the highway the DPF will take a lot longer to fill with Soot.
If you pull a trailer on the highway the DPF will collect a lot of Soot because of the amount of fuel you are burning, BUT , because you are on the highway the DPF will be very hot.
The heat will burn off a lot of the Soot collected in the DPF. Not all but a lot.
This is called Passive Regeneration.

Driving around in stop and go traffic will fill the DPF very quickly.
When the pressure sensors tell the ECU the DPF is getting clogged or full of Soot. The ECU will start a regen cycle IF the vehicle meets the min speed required of 30 mph. At that time the ECU will spray fuel into the exhaust and that will cause the temperature in the DPF to rise high enough to burn off the Soot. If your speed keeps dropping below 30 mph the regen cycle will fail.
If the regen cycle fails the ECU will display on the DIC keep driving...... This is the ECUs last chance of cleaning the Soot out of the DPF.
If you have seen this msg your DPF is in critical condition. And can be permanently damaged. Or at least it's life expectancy can been reduced.
You don't want to see this msg.....
If you continue to drive in stop and go traffic the ECU will start to limit power to protect the engine. It does this because trying to push exhaust through a plugged up DPF will damage the engine.
If continuing to drive above 30 mph doesn't clean the Soot a forced regen at a dealer is the next step.
Forced regen by the dealer is done by connecting the ECU to the dealer diagnostics computer and starting a forced regen. Not good for your truck but your last resort....

If you follow the forums you may have noticed that people who use there trucks on the highway a lot don't have DPF issues.
Highway driving makes heat and heat burns off the Soot.
Highway driving reduces the amount of regen cycles the ECU commands.
Towing a trailer works the engine and that is what today's diesels need.

Today's diesels are a bad idea for city dwellers that use there trucks for short drives .
Get a gas truck....

 

I have used Stanadyne fuel additive starting day one in my 2019 ZR2. I do a mixture of city/hwy driving and have so far had 20k trouble free miles. One of the benefits of the additive is to reduce soot and burn cleaner. Hopefully the trend continues!