OK - for some of you fuel engineers out there - I have been thinking about the poor fuel milage reports and after looking at the flame video - How much fuel would it take to sustain a flame like the one in the video? Seems to me that kind of flame would consume a great deal of fuel. Since the system from what I understand is designed to use fuel to heat the DPF - I would have to wonder how much extra is getting in the system(as opposed to how much is already in the system). I suspect quite a bit(unless there is already a lot of fuel in the system). So could this be a leak in the line to the DPF?

I know you say this has only been reported by 3 people but how many people see whats going on at their tailpipe?

Could a leak in the injector system cause this type of flame? What Im wondering is could the root cause of this be the system itself and how much fuel is being used to ignite the DPF. Maybe the fuel being injected is of a quantity just below what might cause this flame condition and a faulty injector or leak could push it over that threshold. This might also explain the low milage issues to some degree based on how much fuel is being used to lite off the DPF.

Yeah - probably stupid thoughts but seems strange milage seems to be a common theme and blowing fuel out the exhaust is also happening?

I'm not dumping on Ford here - I am actually in discussion to buy one of these but I might wait a bit more.

 

There is several things to look at---Is it ulsd or something other causing extra regen cycles? There is two concerns here--- some have had external fires from fuel leaks, some have the "flamethrower effect". I want to stress, all 08 super duties dont cause fires. The well known issues with the 6.0 has caused extra "visibility" concerns with the 6.4. Is this a concern--of course! The "flamethrower effect" is dealt with by a simple reflash.With the concerns of bad reflashes in the 6.0, this is blown out of proportion. All manufacturers have these "bizarre" symptoms. It depends on if there is media around to make it sensational or not. I used to work at a GM place that also sold Jeeps. I got the same recall notices that Ford has. Cadillacs unintentional deployment of the airbags when the interior gets wet, Chryslers ckp sensors that would cause your vehicle to die when you were around a radar installation. No media around when those gems came out (maybe not news worthy).

 

the flash isn't stopping the problem causing the flamethrowing, it's shutting down the truck 5-10 seconds after it detects a problem. the problem is only fixed after being brought to a dealer for service, and hope they have techs that know the ins and outs of the 6.4 and new SD. ford hasn't released yet what the actual hardware failure is though. i'm sure this week they'll figure it out. i just find it odd that it never happened in any testing they did on these trucks over the past year or more, whenever the development started.

 

The problem I have with this issue is how can Ford NOT have seen this in their many million miles of testing the 6.4. After all the 6.0 problems you would think they would want to get it right. I bet when 6.4 problems keep happening and people have to call the wonderful Ford customer service people in Dearborn they will the same crap that the 6.0 people received when they called about their problems. The only way 6.0 people got help was when they hired a lawyer or went thru the BBB process.

 

Where is the video of the flames? I'm really interested to see this.lol

 

Your last 11 or 12 posts are this exact message.
https://www.ford-trucks.com/forums/s...earchid=248256
Either you are a troll or you can't seem to think of anything new.

 

I built a V8 Pinto before you were born.
Mid eleven car on pump gas.
But your right, nothin says "I'm sexy" like an Astrovan!

 

astrovan man, you are really such a help to people in these threads. did you deliver those pizza's yet or not?

 

Dapgar is right - the reprogramming isn't designed to fix the problem it is a safe gap measure to try and keep something from blowing to hell and gone by shutting off the truck. The cause isn't the program - or is it? Back to my origin concern - is the amount of fuel being pumped into the regen of such a quantity that it is close to the threshold of causing the flame effect? If that is what's going on then the system itself is poorly designed. That's what I was trying to say to start with. But I'm just wondering out loud here.......

 

How much fuel do they need to inject?
Is the fuel being injected to soon after the exhaust stroke?
Really, A Ford engineer should answer these questions as this new emissions motor is beyond backyard guessing.

 

what amazes me is the amount of fuel it must take to reach the end of the exhaust and still produce a flame that big.
i've never seen anything like that. i doubt it has anything to do with the particulate filter in the exhaust, it's gotta be engine related.

 

Again, listen close. The regen cycle starts when the pressure sensor detects more backpressure than usual, it tells the pcm that particulates are plugging up the dpf, the pcm has the injectors give some fuel during the exhaust stroke, raising the temperature of the exhaust, burning the particulates. The flash adjusts the amount of fuel injected during the regen cycle. Flames out of the exhaust only means there is too much combustible material in the exhaust, ADJUST IT! Now, why does none of our 6.4s have flames out of the exhaust? Ours must have come from a different factory

 

Part of one of the articles about the issue stated that the flash would detect higher-than-expected temperatures in the DPF and power down the engine. That could have been a misunderstanding of what the flash does but I read that to mean the engine would shut down. I suppose power down the engine could mean reduce the amount injected in the DPF but I didn't read it that way. The Ford explanation was also not that too much fuel was being injected but that rare leaks in the fuel system were the culprit.

I'm wondering if you aren't correct though vloney and that might explain some of the poor mileage complaints as well.

Now - how may plants are making these things?

 

The video they are talking about, shows a truck in the parking lot at idle with flames showing. The flames aren't very intense at first, then he starts to drive away causing a higher volume of exhaust and flames. After the excess fuel is burned off, the fire stops. The regen cycle happens when there isn't enough heat in the exhaust to burn particulates. If you constantly run it at operating temperatures, it may never go into regen. The effected vehicles were built at the kentucky plant (the other is in indianapolis) between job #1 and march 9. So, you can see, its not all of them. If we were to believe some people, they would have you to believe every 6.4 was dropping like flies.

 

I think we need to be gentlemen and keep to the subject at hand instead of speculation and some border line personal attacks. I will not let this happen if your so inclined to do so.

Vloney has answered the question of how and why the regeneration cycle has caused concern which Ford has addressed and is taking action.