Particulate Filter Cleaning Solutions

[DGamelin]

A couple of weeks ago I read a post that talked about the cleaning solution used for cleaning the particulate filters on the 6. 7 and the turbo. I am looking for the dodge part numbers for them. Our local dodge dealer says they have never cleaned one, they have only done a turbo once, so they didn't have a part number. Can any one help?



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93 250 2wd xc 354 auto 272k

04. 5 3500 4wd qc dully 373 6speed 94k

 

[Texas Ted]

I don't believe there is any "solution" to clean a dpf. Perhaps you have it mixed up with the cleaning of the EGR valve and cooler. DPF regeneration must be done by DRIVING the truck. Check the archives, this has been discussed in depth.



https://www.turbodieselregister.com/forums/6-7l-engine-transmissions-2007-5/220545-egr-valve-egr-cooler-cleaning.html[/url]

 

[Hoefler]

The solution you are refering to is for cleaning the turbo.

 

[DGamelin]

The one for the turbo is in now. What is safe for the filter?

 

[CSkal]

IIRC, the DPF has to be cleaned by removing it from the vehicle and fixing it in a machine designed to perform the cleaning. This assumes that no amount of regen will clear it out to be fully functional again.

 

[Champy]

The DPFs are normally cleaned while the vehicle is running using either passive or active regen processes. Once they are fully sooted up they are then removed and cleaned using one of two primary methods: 1) Level I (field) cleaning requires them to be loaded onto a special machine that blast high pressure air pulses along with a vacuum to remove as much ash/soot as possible; or 2) Level II (burn) cleaning runs the DPF through a hot oven like cycle to literally burn all the oil/soot residue into an ash, and then it is run through another Level I cleaning cycle.



If the filter is still not flowing correctly its gotta be replaced, there is no reman or repairs to the substrate materials. There is no cleaning fluid being used on DPFs.

 

[salstrip]

Hi,
The DPFs can be cleaned simply by removing them from the vehicle ,removing the sensors and back flushing them with water ,note you will get a heap of soot out of the filter so you must catch the water . we have done about 20 of them and they work perfectly well afterwards,note you will blow a little steam for the first few miles after you have done it
regards Conn

 

[jelag]

Donaldson builds a retro kit for large engines in the CA market for the new standards there... . this kit has a DPF that is cleaned... the procedure involves cleaning the unit in a large oven at something like 800*F. I don't remember the exact number but we looked at being a service agent for them and installing the equipment and doing the work... . BTW the DPF separates for service leaving another portion behind the DPF untouched... Once the DPF is removed from the oven it attached to a high volume mid pressure device that Puff's it from side to side, thus removing all the soot that has been turned into ash... . during this process its tested to see the exact flow rate... once it meets new standards its returned and reinstalled... .

We own a burn off oven, runs at 700-800*F based on what we are going to clean... . we thought that if our DPF was in trouble we'd attempt the cleaning based on what we've seen in the Donaldson program before we replaced it...

But at 115K miles or so, our 5500 runs great...

 

[DGamelin]

I have seen the set up that ford uses. I didn't know that Donaldson offered any thing like that. The customer couldn't waite to get it in the shop so he put a delete kit on, maybe it is out of my hair. We have never had to do one yet so I can't see spending that kind of money on a high dollar tool like that. Neither of our two local dodge dealers have one, they just replace them, the ford dealer has one. Thanks Guys.