DPF Clogged
5th Wheeling
Joined: Apr 2020
Posts: 43
Likes: 12
Junk
2018 F350 DRW 6.7 with 40,000 miles. I do not idle except to cool down after towing. Do not make short trips. Truck spends most of its time pulling either a 16,000 lb. fifth wheel or a 12,000 lb. dump trailer at highway speeds with the typical trip being 3 hours or much more. I bought the truck new and have not had any problems up to this point. To me the DPF should not need replacement with the driving conditions outlined above.
Engine light came on about 2.5 hours into a trip pulling my dump trailer. Return home after 2 weeks at destination no trailer, engine light on the entire time. Dealer, under warranty replaced the sensor in the tail pipe and the tail pipe. Again about 2 hours into the next trip not pulling a trailer light comes back on. Check new tail pipes black as Cole. Light goes off while at my destination. On the way back again not pulling trailer about 2 hours in engine light comes back on. Get home tail pipes still black. Now dealer is going to replace DPF? I my mind something else is causing the problem. Still consuming DEF at about the same rate as usual. Anybody have an idea what might be causing the problem? I find it hard to believe the DPF just went bad.
Thanks in advance!
Engine light came on about 2.5 hours into a trip pulling my dump trailer. Return home after 2 weeks at destination no trailer, engine light on the entire time. Dealer, under warranty replaced the sensor in the tail pipe and the tail pipe. Again about 2 hours into the next trip not pulling a trailer light comes back on. Check new tail pipes black as Cole. Light goes off while at my destination. On the way back again not pulling trailer about 2 hours in engine light comes back on. Get home tail pipes still black. Now dealer is going to replace DPF? I my mind something else is causing the problem. Still consuming DEF at about the same rate as usual. Anybody have an idea what might be causing the problem? I find it hard to believe the DPF just went bad.
Thanks in advance!
FTE Legend
Joined: Mar 2017
Posts: 31,967
Likes: 9,197
From: Western NY
[QUOTE=CARV;21611151]Overkill2 Thanks for the information! I have read and understand the TSB 21-2332 which was listed on the invoice during the last replacement of the DPF. Actually I handed them the TSB when I dropped the truck off for the first DPF replacement. Weather it was actually done or not, I don't know. My build date is 04/18/18 so I would be included in the TSB. None of this makes sense to me. Truck ran great on my 3.5 hour trip back to my dealer with about 19mpg but my exhaust tips were sooted over coal black. Supposedly I am to receive a call back from Ford customer care today, we'll see. In the video he states if you have PremiumCARE warranty (which I do) it should be covered. Ford customer care informed me it is not covered. I have a call into Two Rivers Ford who I purchased the warranty from to see what they say about the coverage. I don't have high hopes. I also feel the Tech has not investigated fully what is causing the failures. What realy gets me is Ford stating I must pay the $7,500 prior to them completing any further diagnosis which they also stated I will pay for.
I have purposely had my dealer complete all services since day one right down to purchasing my tires from them. Many of the maintenance items were been done considerably earlier than required by the maintenance manual. Back when I was employed as a mechanic at dealerships, if there was a problem vehicle where a factory rep got involved, the first thing they asked to see was the service records. A customer who only came to the dealer for warranty issues was viewed completely differently then one who completed services at a dealership. Not sure what my next steps are going to be? I find this whole thing to be unbelievable and completely unfair.[/QUOTE]
You're very welcome. Sounds like this is not being handled properly... if in fact the DPF was changed out, the fact that it failed in less than a year and just under 10k miles is horse manure. I wish you luck with this... Ford needs to make this right.
I have purposely had my dealer complete all services since day one right down to purchasing my tires from them. Many of the maintenance items were been done considerably earlier than required by the maintenance manual. Back when I was employed as a mechanic at dealerships, if there was a problem vehicle where a factory rep got involved, the first thing they asked to see was the service records. A customer who only came to the dealer for warranty issues was viewed completely differently then one who completed services at a dealership. Not sure what my next steps are going to be? I find this whole thing to be unbelievable and completely unfair.[/QUOTE]
You're very welcome. Sounds like this is not being handled properly... if in fact the DPF was changed out, the fact that it failed in less than a year and just under 10k miles is horse manure. I wish you luck with this... Ford needs to make this right.
Thread Starter
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Mountain Pass
Joined: Jul 2006
Posts: 221
Likes: 29
From: USA
Ford is definitely not handling this as they should. It has obviously been miss diagnosed from the beginning. If anyone knows of a competent dealer in Maryland, well versed in diesel emissions, please let me know. Guaranteed Ford knows but will not lead me to a competent dealer. Not sure if it will do me any good as Ford is taking the stance that they will not replace the DPF under warranty. I have requested to speak with a supervisor at Ford Customer Care who is supposed to contact me today. I have repeatedly requested a factory rep be involved in the diagnosis, so far that request has been deigned, none has even made an attempt. As previously stated: they now expect me to pay for any further diagnosis. What good is the extended warranty?
3rd Gear
Joined: May 2025
Posts: 3
Likes: 1
Forum Discussion Reply: DPF Clogged
If you're dealing with a clogged Diesel Particulate Filter (DPF), you're not alone—it's a common issue for diesel vehicle owners. A clogged DPF can lead to reduced engine performance, increased fuel consumption, and even forced regeneration cycles or warning lights.
Here are a few steps to address the problem:
Forced Regeneration – If your vehicle supports it, performing a parked or active regeneration can help burn off accumulated soot.
Professional Cleaning – Some shops offer specialized DPF cleaning services that restore flow and efficiency.
Replacement – In severe cases where cleaning isn’t effective, replacing the DPF may be necessary.
For high-quality DPF replacements or cleaning solutions, check out DynoVoxParts—they offer reliable options to keep your diesel system running smoothly.
Here are a few steps to address the problem:
Forced Regeneration – If your vehicle supports it, performing a parked or active regeneration can help burn off accumulated soot.
Professional Cleaning – Some shops offer specialized DPF cleaning services that restore flow and efficiency.
Replacement – In severe cases where cleaning isn’t effective, replacing the DPF may be necessary.
For high-quality DPF replacements or cleaning solutions, check out DynoVoxParts—they offer reliable options to keep your diesel system running smoothly.
Hotshot
Joined: Jul 2013
Posts: 14,301
Likes: 2,197
Here I am 9 months and 5,802 miles since my last repair to my exhaust emissions system under warranty. In the last 15 months and approximately 10,000 miles the truck has been to the dealer 4 times for continued repairs to the exhaust emissions system. Early May the engine light came on but went off a few days later, I did not check the code busy with work. Mid June 2025 the engine light again illuminated checking the code resulted in P2002 code. I made an appointment with my dealer for July 2 and informed them of the P2002 code. I requested the dealer contact Ford for assistance in diagnosing the cause of the continuing failures, which did not happen. I also contacted Ford, requesting they assist my dealer who said they would make contact within 24 hours, which also did not happen. Received a call from dealer July 3rd informing me the DPF again needed to be replaced at my expense with an estimated cost of $7,500. Ford care did finally contact me July 7th and the dealer after repeated calls from me. The dealer informed Ford, that I opted to have a partial repair done but declined the DPF replacement. Not true, the other warranty repair was unrelated to the emission issues. The message I received from Ford states, for them to assist in diagnosing the cause of the continuing emission problem, I will need to pay for the DPF replacement prior to any effort by Ford to assist in diagnosis of the continuing emission failures. Again all at my expense to include their assistance in diagnosing the cause even though I have an active PremiumCARE warranty. I guess my PremiumCARE warranty is not worth the paper it’s written on. The warranty does exclude the DPF but all other emissions should be covered. Seems like, kick the can down the road until warranty expired on the DPF then it’s all my problem! Thanks a lot Ford! Below is a sequence of events.
1. 39,616 miles, 3-25-24 Sensor JC3Z-5L239-C and tail pipe replaced
2. 40,451 miles, 4-23-24 DPF replaced, I believe TSB 21-2332 completed. (Not sure as I am out of town and unable to retrieve the paperwork)
3. 44,298 miles, 9-19-24 sensor HC3Z-5L248-A replaced
4. 50,100 miles estimate not sure too pissed to look when I dropped it off, 7-3-25 P2002 DPF needs to be replaced again NICE!
If anyone has any suggestions or any insight on why the exhaust emission failures continue, please respond. Thank You!
1. 39,616 miles, 3-25-24 Sensor JC3Z-5L239-C and tail pipe replaced
2. 40,451 miles, 4-23-24 DPF replaced, I believe TSB 21-2332 completed. (Not sure as I am out of town and unable to retrieve the paperwork)
3. 44,298 miles, 9-19-24 sensor HC3Z-5L248-A replaced
4. 50,100 miles estimate not sure too pissed to look when I dropped it off, 7-3-25 P2002 DPF needs to be replaced again NICE!
If anyone has any suggestions or any insight on why the exhaust emission failures continue, please respond. Thank You!
while the dealer service department don’t know root cuase and fix…driven by flow chart trouble shooting and “allowable reimbursement “ ford USA knows e act what is going on and its part of the degenerative engineering that we get screwed on and will usually get quietly fixed in the next superduty version.
consider the fundamental question as to why you have systt
ic long term emissions problems….and if you fall under a definitive cuase and effect situation is ford really going to spend the time and money to fix your vehicle .
just as an example…let’s say your cp4 timing gear has slipped for one of the various reasons that cuase this….your engine will always run out of time and your emissions system will always be operated beyond what it was designed to do….do you think ford has a plan to identify and fix this…pulling the cover…putting the engine with piston 1 in top dead center and then checking if the alignment marks line up…removing the gear and replacing the gear in its correct position or just replacing the engine since it’s more likely requiring lower skill sets and generates more billable hours.
my take is one you find yourself in one of fords sand traps the best thing to do is throw the truck over the fence and replace it with another one….or just keep replacing emissions components if that’s cheaper to do.
FTE Legend
Joined: Mar 2017
Posts: 31,967
Likes: 9,197
From: Western NY
Just as an idea, talk to someone with probably more knowledge on DPFs since they service big truck emissions and clean/ service big truck DPFs and can clean/service Ford DPFs which is Pittsburgh Power.
https://pittsburghpower.com/
Their contact page to leave a message.
Their DPF cleaning service page.
Not saying that you should have your DPF cleaned as it's new, but shoot them a message or call them to see if they have any additional information or could advise you on your situation.
Good luck.
https://pittsburghpower.com/
Their contact page to leave a message.
Their DPF cleaning service page.
Not saying that you should have your DPF cleaned as it's new, but shoot them a message or call them to see if they have any additional information or could advise you on your situation.
Good luck.
Last edited by Overkill2; Jul 13, 2025 at 02:20 PM. Reason: correct post
Thread Starter
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Mountain Pass
Joined: Jul 2006
Posts: 221
Likes: 29
From: USA
Supervisor at Ford Customer Care never returned the call. I was told they would call within 24 hours just not what year. Keep up the good work FORD!
Speakerfritz you must have read my mind. They would rather lose a lifelong customer and Ford family.
Overkill2 thanks, I might give them a call but I think I am going to fix it myself. Incompetence and arrogance at Ford is unbelievable. I will not deal with them in the future.
Speakerfritz you must have read my mind. They would rather lose a lifelong customer and Ford family.
Overkill2 thanks, I might give them a call but I think I am going to fix it myself. Incompetence and arrogance at Ford is unbelievable. I will not deal with them in the future.
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FTE Legend
Joined: Mar 2017
Posts: 31,967
Likes: 9,197
From: Western NY
Supervisor at Ford Customer Care never returned the call. I was told they would call within 24 hours just not what year. Keep up the good work FORD!
Speakerfritz you must have read my mind. They would rather lose a lifelong customer and Ford family.
Overkill2 thanks, I might give them a call but I think I am going to fix it myself. Incompetence and arrogance at Ford is unbelievable. I will not deal with them in the future.
Speakerfritz you must have read my mind. They would rather lose a lifelong customer and Ford family.
Overkill2 thanks, I might give them a call but I think I am going to fix it myself. Incompetence and arrogance at Ford is unbelievable. I will not deal with them in the future.
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