Some users here have reported finding LSD pumps. Not me, just repeating what I believe are reputable reports.. and you WILL generate more soot.. LOTS.. and Illinois is almost always some form of Bio, lots more soot there too

https://www.ford-trucks.com/forums/9...ml#post8316074
Sam

 

I hate IL, try to fill up just before the border and try to make it all the way to the other end is my advice! Or get just enough to get you to the state line.

 

I know gerry can fuelling isn't sexy, but on any distance drive I carry two cans of fuel. Y'know, just in case, like.

 

yeh, so the net of my response to the OP is DPF gets filled up lots of different ways.. no two times are the same. While YOU may think you know, the DPF sensors ACTUALLY know (unless they are broken)..

Sam

 

I appreciate the responses, it looks like I was just being paranoid about my VERY expensive truck! I did get a 24 point vehicle inspection ouit of the deal, too bad they couldn't find something to sell me.

 

I notice this too. I get more frequent and longer regens when using 'generic diesel.' I'm back to using Shell/Chevron and my regens are every 200~250miles if they complete on their own. Using Diesel Kleen seems to slow regen frequency down a tad.

 

Well now I have the latest flash and get only the abbreviated "CLEANING EXHAUST FILTER" messages except on three occasions during my summer trip I experienced the message staying on for the whole duration of the burn. I also experienced my only "DRIVE TO CLEAN" message. Each of these departures from normal occured at high altitude. 5000 feet and above. Once I returned to the flatlands everything went back to "normal". I offer no opinion as to why these things happened. The truck ran fine before during and after each event. I didn't feel like playing stump the tech so I didn't bother talking to the dealer about it. I offer it here for information purposes only. It is after all a computer controlled system which is my explanation. If you have a better one, please share.

 

I've owned my truck for 16 months and it has been in the shop 5 times. It has had a black, I mean black as a chipped 7.3, tailpipe since the day I bought it with 49K on it. Since it is approaching 100K I've been ruthless with the dealer and pretty much been a ***** to get them to fix the truck.

They found that the turbos were leaking oil. Dealer changed them 4 weeks ago but didn't change the DPF. Pleaded my case to no avail. They wouldn't even drop the DPF to look. Claimed that since Ford wouldn't pay them to do it that they didn't have to. I tried to explain that they fixed a source of problems but didn't fix the damage it caused. I drove it for 1100 miles and got 16mpg hand calculated. Hooked up 6500 lbs and got 8.5... I brought it in and told them to fix it AGAIN!

I left the truck with them on October 11th and told them I didn't need it and keep it until it was fixed. They called twice since then to say all was OK. I would argue with them again and basically tell them to keep it and fix it. They called yesterday and said they are going to change the DPF after consulting a Ford engineer... I had to call Ford and get them involved to make this happen. I'm sure the dealer knows, but I had to do what I had to do

My bigger question is whether or not the DOC will get changed too since it is mounted BEFORE the DPF... Wonder if it is clogged...


Moral of the story--- Don't be afraid to call that customer service number and open a case to get it fixed... I was told the DPFs have only been making it to 75K miles if everything on the truck is OK... Throw a wrench in the mix like leaky turbos or leaky injectors and the DPF will go downhill fast.

Ford is just as much to blame with the restrictions that they put on the dealers but it seems to me that if the dealer is worried about customer satisfaction as much as the factory is then this wouldn't happen. seems to me the dealer is doing the bare minimum to get it out the door and get paid NOT hosed...

I've also found out that even when the DPF looks "good" to the PCM in regards to back pressure that the PCM will force a regen if the truck doesn't regen within a preset amount of time. So basically you can bore a hole in the DPF and get rid of the back pressure and the PCM will force a regen once the truck reaches the mileage limit or hour limit that the PCM thinks it needs to keep the DPF clean. It sounds like pretty crappy logic on the PCM side, but being as I have some automatiom background I can understand why there is a failsafe mode designed in it that way...

 

John - sorry to hear about your luck with the truck.

That having been said, I am curious as to if some of these issues were corrected in later versions. 2008 was the first model year of the 6.4, there were a couple years after that Ford had to improve things. Are there any later year trucks with similar issues, or are there just that few of them out there creeping up high in mileage to really know?

 

John, this failsafe is why you need a tuner if you remove the DPF, it WILL go into regen eventually.

and if the sensors are bad, and the DPF fills, then the engine will not run.
so there MUST be a failsafe for this condition.

Sam

 

I'm sure my truck's problems are due to its' Job 1 build date of Jan 2007. Just wish the dealer would've caught these problems sooner.

 

Mine is a job 1 as well.. just had the DPF replaced as I was puffing smoke with the trailer on.

62k miles.

Sam

 

Did they check the turbos to see if they are leaking? If not go pull your intercooler boot and see. Mine would puff smoke when taking off from a stop and sometimes it would smoke while stopped and idling.

 

I do not know. but it only did it with trailer, and from a dead stop.

Sam