Just installed a new DPF testpipe along with the SCT Livewire Extreme PCM / TCM Flash Tool. Had enough of the 11 mpg fuel mileage on this new '08 F350 Super Duty. This is my 4th Ford Diesel and it is by far the worst on fuel economy. My '99 F350 Crew Cab Dually got 19/20 mpg all day long by itself. Hard to believe Ford put this DPF on the new 6.4 Liter diesel. I will fill the tank up in the AM and start checking the fuel mileage.
Welcome to FTE. I will be watching this as I have a guy at work that wants to do something. If you show some serious improvement I might be able to convince him to buy that kit from Doug.
__________________ Ryan
I am everywhere!!!!!! Ha Ha Ha Stations 3,13,14 Working house fire.... say it isn't so.......
Hard to believe Ford put this DPF on the new 6.4 Liter diesel.
It's because they HAD to
WELCOME to FTE!
__________________
- art k. - Moderator for the Superduty, V10, and FE forums
'01 F250SD SC SB XLT V10 4x4 auto 3.73 Volant CAI, eBay headers and y-pipe
'97 Cougar XR7 30th Anniv Edition 4.6L
'74 F250 Highboy FE390 deceased! I've been wrong before, I'll be wrong again. Just wait and see.
What is a DPF and will messing with it void the warranty?
Just about any change to the emissions systems on a diesel will void the warranty - at least, on the engine and drivetrain (more power = no warranty).
It really depends on the dealer, though.
__________________
- art k. - Moderator for the Superduty, V10, and FE forums
'01 F250SD SC SB XLT V10 4x4 auto 3.73 Volant CAI, eBay headers and y-pipe
'97 Cougar XR7 30th Anniv Edition 4.6L
'74 F250 Highboy FE390 deceased! I've been wrong before, I'll be wrong again. Just wait and see.
What is a DPF and will messing with it void the warranty?
It's a Diesel Particulate Filter. It's another device that has been added to the tailpipe to trap particulates in the exhaust system. In addition to being more restrictive, the engine is programmed to use extra fuel every so often (called the regen process) to raise the EGT (exhaust gas temperatures) to "melt out" the trapped particles in a self cleansing process.
None of this is good for fuel economy, but as Art mentioned. Removing it is a no-no according to the EPA, and will void the Ford warranty. It's not as easy as simply cutting it out and putting a pipe back in it's place. If the computer no longer senses the DPF back pressure it will eventually go into a default mode and cause a constant regen which makes the mileage even worse. A tuner is needed to compensate for the computer programming. That's why you see SCT mentioned in the threads about DPF delete.
__________________
Chris
2002 F350 6-speed 444 CID. XLT, Heated Seat, 270,000 & counting. 6637 w/ Pete's armor. Cold air set up for 6637
“Good judgment comes from experience, and a lot of that comes from bad judgment.” Will Rogers
And personally, being in the Metro NY area and seeing the results of diesel particulates (and the documented medical effects for kids and at-risk adults), I'd never remove it if it was me.
Just like, while I would pass emissions without it (idle sniffer limit for HC is 330 for my SD), I won't remove my catalytic converter for the same reason.
Call me a wuss
__________________
- art k. - Moderator for the Superduty, V10, and FE forums
'01 F250SD SC SB XLT V10 4x4 auto 3.73 Volant CAI, eBay headers and y-pipe
'97 Cougar XR7 30th Anniv Edition 4.6L
'74 F250 Highboy FE390 deceased! I've been wrong before, I'll be wrong again. Just wait and see.
And personally, being in the Metro NY area and seeing the results of diesel particulates (and the documented medical effects for kids and at-risk adults), I'd never remove it if it was me.
Just like, while I would pass emissions without it (idle sniffer limit for HC is 330 for my SD), I won't remove my catalytic converter for the same reason.
Call me a wuss
Krewat, I have kids also and I am also concerned about particulate emissions! However, Ford in its infinite wisdom added this DPF and it accumulates the soot generated from the diesel exhaust. At a point in time when the backpressure gets too great inside the DPF the ECM computer tells the engine to dump fuel into the exhaust manifold. This process is called REGENERATION when this occurs the ceramic filter inside the DPF heats up and starts to spew smoke out the tail pipe. So you tell me is it better to send out soot a little bit at a time or do you want to choke and the poor B**tard that is following you when this thing goes into REGENERATION.
I have talked to my Ford Service Manager at length and he was the one who told me about SCT and they will NOT void my warranty.
PS, Ford has had so many complaints on poor fuel economy I understand they are installing 3:55 gears in most of the new Super Dutys to boost mileage. However, when you ask them to retrofit your 2 month old Truck they give you the cold shoulder. So one needs to use a little Yankee inginuity!
I have talked to my Ford Service Manager at length and he was the one who told me about SCT and they will NOT void my warranty.
Please don't take this the wrong way. I'm not trying to argue with you, just trying to make sure you are correctly informed. With todays diesel prices, if removing the DPF did not void the Ford warranty, I don't thing too many people would have DPF's.
If you've found a service manager willing to overlook your tuner and dpf delete pipe then congratulations, but I would ask you to call a couple of other dealerships and ask them. Adding an aftermarket tuner and removing the DPF will most definitely void your warranty.
Are you aware one of the design changes for the 08 model was to make it easier to remove the cab? The reason for this is because this is how Ford will perform most work on your engine (other than the real simple stuff)
We do have a section dedicated to the 6.4 diesel. I would suggest you spend some time reading up on things there. Again, I'm not trying to argue with you, or tell you the DPF delete was the wrong thing to do, I just want to make sure you understand what may happen if that service manager leaves the dealership and you're forced to deal with a non-warranty repair where you have to foot the bill for removing the cab before they can even begin to fix the problem.
__________________
Chris
2002 F350 6-speed 444 CID. XLT, Heated Seat, 270,000 & counting. 6637 w/ Pete's armor. Cold air set up for 6637
“Good judgment comes from experience, and a lot of that comes from bad judgment.” Will Rogers
Ok I am still confused is he just installing a computer with the DPF Delete program, or installing the computer and getting a new pipe with no DPF?
Think of the DPF as kind of a muffler. He's cutting that out and removing the DPF and putting a piece of pipe back in it's place so there's no gap in the exhaust pipe.
The tuner is an add on that changes some of the programing in the Ford computer.
__________________
Chris
2002 F350 6-speed 444 CID. XLT, Heated Seat, 270,000 & counting. 6637 w/ Pete's armor. Cold air set up for 6637
“Good judgment comes from experience, and a lot of that comes from bad judgment.” Will Rogers
Im all in favor of the DPF delete to boost our MPG but it states right in the manual that ANY modification to the computer voids the warranty. Thats why I dont have the balz to do it yet. Very cool that some dealers will overlook it but rest assured Ford Motor Company will not. If your repairs never extend beyond your local dealer and this service manager never leaves then there is a chance you are golden, but thats a gamble. Ask the service manager to put that gaurantee in writing and see what his response is.
Im not suggesting you shouldnt have done the DPF delete. In fact I am glad there are guys like you with the balz to do it so we can all learn about it and possibly take that jump one day in the future. My only suggestion here is that your service manager didnt fully inform you of the facts and even recommended a mod that he knows will void your warranty. Maybe thats his idea of job security because now you have no choice to take your truck to any other dealer for service.
Check out the 6.4 forum to see the results from some other members. With any luck your results will be similar and you will be visiting the local gas station a little less often. Good luck, keep us posted.
__________________
2008 F350 CC 4x4
Harley Davidson 6.4 PSD Auto
Job #3 build
to boost our MPG but it states right in the manual that ANY modification to the computer voids the warranty. Thats why I dont have the balz to do it yet. Very cool that some dealers will overlook it but rest assured Ford Motor Company will not. If your repairs never extend beyond your local dealer and this service manager never leaves then there is a chance you are golden, but thats a gamble. Ask the service manager to put that gaurantee in writing and see what his response is.
