[Redneck5821]

2017 Colorado 2.8 diesel

Never got any messages for a regen starting or to keep driving, just my engine light came on. Took it to Chevy and the dpf filter is not heating up. So $3k later hope this don't happen again.

Anyone else had this issue?

Ps I drive Hwy 90% of my drive to and from work so it has had plenty of time and heat to regen on the 1hour long drive.

 

[lovemycolorado]

I had this happen, but with also the "Engine Power Reduced" message. The DPF filter had to be replaced, luckily still on warrantee, but getting the parts was a nightmare in June 2020 with GM shut down, then when I did get them, the lame mechanic broke something else while replacing the DPF, had to wait another month with a loaner car. Since then, no problems, that was over 10,000 miles ago, knock on wood it's fixed.

 

[oak1971]

 

[Sfc2]

2017 Colorado 2.8 diesel

Never got any messages for a regen starting or to keep driving, just my engine light came on. Took it to Chevy and the dpf filter is not heating up. So $3k later hope this don't happen again.

Anyone else had this issue?

Ps I drive Hwy 90% of my drive to and from work so it has had plenty of time and heat to regen on the 1hour long drive.

I had the same thin except was taking a long time to regin thetold me at dealer ship that would have to replace deaf fuel filter $3000 I went with the delete out of Canada wit exhaust $1600 I get between 35 and 40 miles to gallon now and no issues also in my state they only check safety stuff not emissions now have 126000 on truck

 

[PCola Colorado]

That video is interesting. If it is legitimate it seems using a couple of stainless steel ultrasonic baths and these solutions would make quick work of it. Are there businesses remanufacturing/cleaning these filters now ?

 

[oak1971]

That video is interesting. If it is legitimate it seems using a couple of stainless steel ultrasonic baths and these solutions would make quick work of it. Are there businesses remanufacturing/cleaning these filters now ?

There are businesses that specialize in DPF cleaning, though I do not have knowledge of their methodology.

 

[RendonBob]

In DFW there are 4 or five companies that specialize in DPF cleaning. The large Diesel fleets use them. There are 2 primary techniques that they all use with a bit of success. However you will still bot be back to zero.....I watch my regen status regularly through my ELM27 and OBD fusion (purchased version) I watched it climb from about 6% acter a regen to around 18%. I researched options as I was concerned that trouble was on the horizon. I found a video if a person in the UK cleaning his own DPF. That was interesting but not something I cared to do. I then discovered a youtube of a person using Lucas DPF deep clean and stating he reduced his after regen percentage to next regen from 23 to 12....I was a bit intrigued and thought wow I will look for this. I found it on the shelf at Atwoods. 12.99 a bottle, tried it on a fresh tank and after (Highway regen) was down to 7% which was close to my threshold. I do not know if it is snake oil but I use it any time my regen is above 15% as a starting point to the next regen and I see results. I also found that the ash content in your oil has a lot to do with the frequency and ability to clean. I only use penzoil euro (dexos2 they paid the gm tax) and that seems to help significantly. So check out your dpf cleaners in your area, see who has large fleets and research the cleaning methods. Since most have 24 hour service there is no need to use a gm stealer ....oh type-o dealer.....

 

[Scotty1100c]

That video is interesting. If it is legitimate it seems using a couple of stainless steel ultrasonic baths and these solutions would make quick work of it. Are there businesses remanufacturing/cleaning these filters now ?

They’ve had dpf cleaning services around for quite a few years now, initially for semi trucks, then they started doing it for light duty trucks. I find it interesting I haven’t seen or heard any advertising for it, only reason I’m aware of it is because I’ve been a trucker for over a decade. In semi’s they’re made serviceable….meaning the manufacturers like Cummins and Cat made it so you can take them off, open them up and clean them. GM, Ford, and Ram all made the decision to TRY and make the dpf on their trucks unserviceable….meaning they’re sealed units. They don’t want you cleaning it, they want you buying parts and changing parts. The businesses that service and clean them developed ways to clean and service them anyways, and there’s a number of ways…baking them, using ultra sonic waves, cutting them open and welding them back up. And there’s shops all over the country that’ll do it, and can do it on our trucks too.
There’s a shop near where I live in western Washington that performs dpf cleaning services, they’ve partnered with a company called Pittsburg Power where after they’ve cleaned and serviced your dpf they’ll give you a life time warranty on it so long as you run Pittsburg Powers fuel born catalyst in every tank. I’ve decided to preemptively start running it in every tank. I’m always skeptical of companies claims on additives but my truck does run run smoother, it regens less, and the regens are shorter when they do occur. So I’m gonna keep running it.