6.7 issue with Dieseling
Thread Starter
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5th Gear
Joined: Oct 2015
Posts: 5
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6.7 issue with Dieseling
New to the forum and new to the diesel trucks. Purchased a 2015 with the 6.7 Powerstroke and it has issues of 'Dieseling' while running down the road. Has done it from day one and the local dealership doesn't have an answer as to why it does it.
Anyone else having this issue and has anyone heard of a fix?
Thanks
Anyone else having this issue and has anyone heard of a fix?
Thanks
Lead Driver
Joined: Jan 2010
Posts: 6,600
Likes: 84
Welcome to FTE! I thought "dieseling" is when a gasoline engine continues to run after it's commanded to shutdown. Do you mean when you let off the accelerator it continues to accelerate? I'm probably way off in left field. Can you go into a bit more detail so everyone here can try to assist?
Thread Starter
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5th Gear
Joined: Oct 2015
Posts: 5
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A little more detail....
It act's just like a gasoline engine would when you shut it off and it continues to run(dieseling) but does this at different speeds from town to highway. Just starts loosing power & chugging (dieseling like a gas engine would) for about a minute and then will stop. Seems to be getting more frequent.
Hope that helps...
It act's just like a gasoline engine would when you shut it off and it continues to run(dieseling) but does this at different speeds from town to highway. Just starts loosing power & chugging (dieseling like a gas engine would) for about a minute and then will stop. Seems to be getting more frequent.
Hope that helps...
Super Moderator
Joined: Aug 2008
Posts: 37,379
Likes: 1,863
From: Frederick, MD
Regen refers to regeneration.
Your truck has emissions, you should have given some info on it when you bought it.
EGR..seamless nothing to worry about.
DPF= Diesel Particulate Filter. This is a filter under your passenger side of the truck. It is used to trap soot. So your tailpipes should be nice and clean.
All this trapping of soot has to be cleaned out upon occasion. That is called regeneration of the DPF. Your computer should come up with a message that says "cleaning exhaust filter".
the way the DPF is cleaning is by shooting fuel during the exhaust stroke down the exhaust. This raw fuel burns the soot and then out the tail pipe in harmess ash (if any) happens.
When a DPF has to be cleaned is dependant upon many factors.
Your truck has emissions, you should have given some info on it when you bought it.
EGR..seamless nothing to worry about.
DPF= Diesel Particulate Filter. This is a filter under your passenger side of the truck. It is used to trap soot. So your tailpipes should be nice and clean.
All this trapping of soot has to be cleaned out upon occasion. That is called regeneration of the DPF. Your computer should come up with a message that says "cleaning exhaust filter".
the way the DPF is cleaning is by shooting fuel during the exhaust stroke down the exhaust. This raw fuel burns the soot and then out the tail pipe in harmess ash (if any) happens.
When a DPF has to be cleaned is dependant upon many factors.
Lead Driver
Joined: Jan 2010
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Elder User
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From: The Sunshine State
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Post Fiend
Joined: Jun 2014
Posts: 6,801
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From: DFW, TX-GoldCanyon, AZ
Just for grins - pull out your oil dipstick and check the level...
There have been a lot of cases where the 6.7 was overfilled. I'm not sure how the crankcase ventilation system works on the 6.7, but if it vents back to the intake somehow, it could be running partially off of crankcase vapor / oil...
There have been a lot of cases where the 6.7 was overfilled. I'm not sure how the crankcase ventilation system works on the 6.7, but if it vents back to the intake somehow, it could be running partially off of crankcase vapor / oil...
Last edited by Big-Foot; Oct 31, 2015 at 11:02 PM. Reason: Schpellink errirs duh!
Elder User
Joined: Jul 2010
Posts: 501
Likes: 1
From: Pacific NW
OK, let's clear things up a little hear. What it sounds like is you don't have consistent running and you're getting "Stumbling", where you're losing power and the engine is not running smoothly. Dieseling is what happens when a motor is shut-off and it continues to run (typically through left over fuel or possibly pulling oil from the crank case or turbo). They call it dieseling because the engine is still running on auto-ignition through sheer compression alone. That's why it's a big issue on gasoline engines as they're not designed to continue running once the ignition has been cut off.
As others here have noted, you can have a possible mechanical issue, or maybe just a regeneration issue. You have a 2015, see if you can get some sort of logger attached to your truck. If you need more assistance, utilize Crystal here on the boards as she has assisted many members on this site already.
As others here have noted, you can have a possible mechanical issue, or maybe just a regeneration issue. You have a 2015, see if you can get some sort of logger attached to your truck. If you need more assistance, utilize Crystal here on the boards as she has assisted many members on this site already.
Elder User
Joined: Mar 2005
Posts: 526
Likes: 4
From: New Jersey
Not intending to insult you in any way, BUT I find it alarming that a consumer would purchase an expensive diesel truck and have done no research on it's operation AND I find it more concerning that the subject of Exhaust Regeneration apparently was never discussed during the sales and delivery process. Perhaps our friend FORD CUSTOMER SERVICE could channel this down the pipe to the appropriate people at Ford Motor company that their vehicles are not always being properly demonstrated to their customers who need to be aware of the technology and systems in their trucks... not necessarily understand but at least aware. "Never heard of regen" SCARES ME!
It would be very beneficial to you to go out to your truck and grab the owner's guides from your glove box and start reading. There is a lot of good and important information within the pages. Just sayin.
It would be very beneficial to you to go out to your truck and grab the owner's guides from your glove box and start reading. There is a lot of good and important information within the pages. Just sayin.
Elder User
Joined: Jun 2007
Posts: 826
Likes: 1
From: The Sunshine State
Neither did mine, but since I traded in my 2011 6.7 I guess he assumed that I knew what a Regen was. I agree that buyers new to the 6.7 need to be made aware by the Dealership, and advised to read the PSD Manual provided.
Posting Guru
Joined: Apr 2006
Posts: 2,216
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My dealer never mentioned a thing. But I would suspect most buyers are serious and do their research. I wouldn't drop this kind of cash without doing some reading but maybe that's just me.
He did talk about the DEF and service requirements though.
But since I can't really tell when a regen occurs unless I'm paying attention to the fuel consumption its no big deal.
He did talk about the DEF and service requirements though.
But since I can't really tell when a regen occurs unless I'm paying attention to the fuel consumption its no big deal.