DPF Physical Cleaning
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Laughing Gas
Joined: Aug 2010
Posts: 852
Likes: 12
From: Kentucky
DPF Physical Cleaning
Well last week we removed three DPF systems from our Mack tractors and sent them in for a cleaning. They were throwing codes saying that the DPF could not clean it on its own anymore. With a few hours in removal, the 300 mile round trip to a cleaner (hard to find) and reinstallation, it was a expensive process. The cleaning alone was $500 a pop.
So that got me wondering when will my 2011 F-250 need the DPF need to be cleaned? If you look in the manual it states that eventually this will need to happen. I hate to bring up something that is a long way away but its a real possibility that all of us will be facing. And what dealer is going to purchase the expensive equipment to do this task?
So that got me wondering when will my 2011 F-250 need the DPF need to be cleaned? If you look in the manual it states that eventually this will need to happen. I hate to bring up something that is a long way away but its a real possibility that all of us will be facing. And what dealer is going to purchase the expensive equipment to do this task?
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Laughing Gas
Joined: Aug 2010
Posts: 852
Likes: 12
From: Kentucky
i figured you would know the answer rickatic!
Ya, I was thinking Paul would be the man to know that one. I would be curious to see what a new one cost as well.
Ya, I was thinking Paul would be the man to know that one. I would be curious to see what a new one cost as well.
Lead Driver
Joined: Jan 2010
Posts: 6,600
Likes: 84
How many miles were those DPF's run before this cleaning?
I was under the impression the dealer simply replaces with a refurbished part (on our dime).
Maybe someone who has put enough miles on a 6.4L without a DPF failure has experience with this (or a tech).
I was under the impression the dealer simply replaces with a refurbished part (on our dime).
Maybe someone who has put enough miles on a 6.4L without a DPF failure has experience with this (or a tech).
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Laughing Gas
Joined: Aug 2010
Posts: 852
Likes: 12
From: Kentucky
They were in the ballpark of 200,000 miles.
Post Fiend
Joined: Jan 2009
Posts: 6,521
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From: Greenwood, SC
I put 153,000 miles on the 6.4 I had, mostly towing trailers and lots of interstate miles, which apparently is ideal for longevity. The DPF and exhaust system was pristine, no soot, no ash, no indication of any need for cleaning.
I used to see regen cycles anywhere from 2 to 4 times for every 30 gallons of diesel (per tank). More often than some, less than others. It all depends on duty cycle and temps.
Do the Mack trucks have a Navistar set up? I have no idea if there are any similarities in the EGR and regen process.
My 6.7 has 31,000 miles on it and I see an active regen every 1,000 miles or so. Much different system and I like it, a LOT.
I used to see regen cycles anywhere from 2 to 4 times for every 30 gallons of diesel (per tank). More often than some, less than others. It all depends on duty cycle and temps.
Do the Mack trucks have a Navistar set up? I have no idea if there are any similarities in the EGR and regen process.
My 6.7 has 31,000 miles on it and I see an active regen every 1,000 miles or so. Much different system and I like it, a LOT.
Post Fiend
Joined: Apr 2004
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From: North of Salt Lake City
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Laughing Gas
Joined: Aug 2010
Posts: 852
Likes: 12
From: Kentucky
Well, from 07' to 10' the mfg. all used the same egr and dpf system. But in 2010 all the truck people added DEF, except for Navistar and the Maxxforce which is using extreme EGR. I've been told the underhood temps on the new Internationals are "extreme" to say the least.
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Post Fiend
Joined: Jan 2009
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From: Greenwood, SC
This info may or may not be correct, I've gleaned this kind of stuff over the years from talking to lots of folks, ranging from certified techs to a bunch of guys sitting around shootin the bull.
Senior User
Joined: Jan 2011
Posts: 133
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From: Washington, IL
Hmmm, could rerouting the CCV prevent a certain amount of ash build up in the DPF???
From what I know of modern diesel engines (and researched in the last week), the ash from the blowby oil could account for 1/4-1/2 of the ash deposits in the DPF.
From what I know of modern diesel engines (and researched in the last week), the ash from the blowby oil could account for 1/4-1/2 of the ash deposits in the DPF.
Senior User
Joined: Sep 2010
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DPF Cleaning, yes at some point the DPF will need to be physically removed and the ash cleaned. I have many files on this subject and will put together a summary. Note that most of the information was developed prior to when the 2008 P356 (Super Duty) program launched as this was our first application with a DPF. More hours than you could ever imagine were spent working through the logistics of how to manage the introduction of a DPF into the marketplace.
-Paul
-Paul
Postmaster
Joined: Apr 2009
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DPF Cleaning, yes at some point the DPF will need to be physically removed and the ash cleaned. I have many files on this subject and will put together a summary. Note that most of the information was developed prior to when the 2008 P356 (Super Duty) program launched as this was our first application with a DPF. More hours than you could ever imagine were spent working through the logistics of how to manage the introduction of a DPF into the marketplace.
-Paul
-Paul
this is why I hoped Paul would comment....na na na na na na...your turn...
Regards