Backwards DPF?

[2004LB7]

anyone tried putting the DPF in reverse or flipping it around to help extend the life and clean it out? one of the issues with the DPF is the ash that doesn't burn away but builds up until the back pressure starts triggering excessive regens, codes and lower MPG and power.

every few years or so I tend to remove the DPF and rinse it out. not sure if my regens are working right as it seems to want to skip some or refuse to do it even when commanding a service regen.

so, I recently started having this thought rattle around in my head about putting it back in backwards or in reverse in order to help dislodge any ash and unburned soot. inorder to make this easy I was thinking of welding some of those V band flanges on each side of the DPF to facilitate easy removal and reversal as desired. if I put them right on each side as close as possible it should avoid any sensors or pressure tubes

what do you think? will reversing a DPF accomplish anything beneficial?

 

[gmduramax]

Depends on the truck, I believe 07.5-10 you can. IIRC 11-16 have a tornado looking thing before the dpf, they also have two different types of material inside one after another

 

[2004LB7]

Depends on the truck, I believe 07.5-10 you can. IIRC 11-16 have a tornado looking thing before the dpf, they also have two different types of material inside one after another

mines the LMM so only a single DPF element with no tornado spiny thing inside

 

[2004LB7]

welded in the V band clamps in today. now I just need to reinstall the exhaust



large gap filler to turn 3.5" into 4"


Now I just need to cross my fingers and hope I didn't mess up any measurements or alignment and it fits ok. even if I can't get it to go in backwards it would still be much easier to remove and clean out once a year or so to keep ash levels at near zero

 

[gmc502]

I like it.I was thinking about doing that to my 16 so I could clean it every few years.


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[2004LB7]

as mentioned above, the LMLs have the SCR mounted in the same case as the DPF so cleaning it may be more difficult. if you do, post it up here

 

[2004LB7]

I decided to flip the DPF around for the first time since I put the clamps on. put about 140 miles on it over the weekend. didn't see much if any additional soot /smoke. must have not been too dirty. seemed to drive just fine.

now if I could just figure out my DPF regeneration that doesn't seem to complete and always says to clean exhaust system or whatever that message is every time I start the truck. normally goes away after a few miles but always comes back. may have to put the stock tune back in to see if the regeneration works normally. maybe I should try and reset the ash level since the DPF is running in reverse right now

 

[Cougar281]

Thus blowing the ash that is far worse for everything than the soot the dpf stops out into the air . Deleting the stupid thing is better for the environment and the health of all living creatures than turning it around and blowing the ash out.

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[2004LB7]

Thus blowing the ash that is far worse for everything than the soot the dpf stops out into the air . Deleting the stupid thing is better for the environment and the health of all living creatures than turning it around and blowing the ash out.

Sent from my Pixel 5 using Tapatalk

I'd be inclined to agree with you but my local overlords don't care so i'm stuck with what I got