6.4L Power Stroke Engine and DrivetrainDiscussion of the 6.4L Power Stroke diesel engine and drivetrain in the 2008 Super-Duty trucks. No gas engine discussion allowed except on transmissions and drivetrain that pertain to all models. Please confine discussion of topics in this forum to those items that are specific to the 6.4L Power Stroke engine.
Would it be feasible to program PCM so as to NOT regen, say, below 1600 rpm or maybe below 25 MPH? Would this prevent the possible fire hazard? I am sure it won't be something as simple as that, just wondering why this has not come up before the launch.
You wouldn't think it would be that hard to flash the PCM into not letting a regen happen below 25 MPH. This would make me breathe easier knowing you wouldn't have to worry about a fire as much.
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01' F-350 Powerstroke CC SB, 4X4, auto. MODS: 4" Exhaust with muffler delete, ATS E-Power Tuner, Autometer Phantom pyro, and boost guages, Rapid Flow intake.
I will tell you this much, as I was coming to a stop sign and was rolling just about 10mph with my foot on the brake, the truck went to regen and with the RPM hopping up, it about drove me through the stop. [img]/ubbthreads/images/graemlins/frown.gif[/img] Scary stuff.
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2008 F-450 Lariat W/ Lots-o-Options - Built on Feb 7 2007, Shipped on Feb 12, 2007, Mine on Feb 22, 2007
They could just tell it not to do a regen below say 55MPH. I think that would cover slowing down and driving slow off road. That would be the easiest to do in my way of thinking.
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01' F-350 Powerstroke CC SB, 4X4, auto. MODS: 4" Exhaust with muffler delete, ATS E-Power Tuner, Autometer Phantom pyro, and boost guages, Rapid Flow intake.
I don't envy the car companies trying to sell diesels in the US right now... While all the above suggestions make sense, now add in "what do you do if you have started a regen and the truck comes to a quick stop?" I think once you start one you don't want to stop it. Until someone comes out with a PCM that can see into the future, I don't know how you could possibly cover all the bases. Real world customers are always going to manage to do something that all your testing never foresaw.
Duncan
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What about a dash warning lamp that illuminates 60 seconds before regen. At least you would know it was coming and could plan accordingly. BTW, I thought that regen was deactivated when the brakes were applied? GShelton stated above that it almost pushed him through a stop sign?
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Black/05/F350/XLT/CC/LWB/FX4/SRW/3.73/6.0L PSD/ TorqShift/Updated TBC/Upfitter Switches/SEIC Mod/Diesel Site Coolant Filter/Fumoto Valve/ITEC HFCM Drain Plug/Bilstein Shocks/BFG A/T 28565R18/Built September of 2004
I may be thinking the "Keep It Simple Stupid" train of thought but I have to wonder if regeneration was the first idea/option that the engineers came up with to remove the ash/soot from the seperator. Here I am thinking instead of using/wasting precious( and pretty expensive) diesel fuel to burn off the ash, how about a port/access plate that can be removed and we could just hook up our powerful Shop Vac to the seperator and suck out the soot. Little lite on dash tells us it is time to clean out the trap, I go home, let the engine cool, go out and vacuum out the trap. Bit tongue in cheek, but sure would think there is a better way to deal with this problem. Of course, as a rver, be nice to be able to place a fire box over the particulate trap that I could stick a chicken in, 2 hours/120 miles of freeway driving and dinner is ready!
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2008 F-450 Lariat Dark Stone Metallic over Pueblo Gold 4x4(manual shift transfer case, manual hubs), High capacity tow 4:88s, Off Road, Camper packages, Sirius Sat, Upfitter switches, DVD entertainment, tailgate step, traction control, Audiophile 6-disc, PTC Supplemental heat and heated seats(warm buns), rear sensors, traction control, tailgate step. Built May 8, delivered May 24
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Line-X bedliner, heavy duty floor mats
2003 Sunline F281SR(weekend getaways)
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I do not understand why they did not do like IH. When the system needs a regen, a light will illuminate on the dash. Then it is up to the operator to hit a button on the dash to start the regen process. So it is up to the operator to decide when the system does a regen, not the computer. I guess Ford felt the need to take the operator error out of the process and let the computer do the work.
__________________ '04 F-250 Harley-Davidson 6.0L CC SB
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They could just tell it not to do a regen below say 55MPH. I think that would cover slowing down and driving slow off road. That would be the easiest to do in my way of thinking.
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This would not really be a feasible option for a person who drives mainly in the city.
__________________ '04 F-250 Harley-Davidson 6.0L CC SB
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Of course, as a rver, be nice to be able to place a fire box over the particulate trap that I could stick a chicken in, 2 hours/120 miles of freeway driving and dinner is ready!
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I like the drive and cook idea! [img]/ubbthreads/images/graemlins/cool.gif[/img]
Glenn mentioned how surprised he was when the RPM's took off on a regen when he was coming to a stop sign driving the truck only. Man, what kind of panic would be going on in that cab if you were towing 20,000#'s (Combined weight of 30,000#'s) coming up to a stop sign located at the base of a down slope and that happened? [img]/ubbthreads/images/graemlins/eek.gif[/img]
Looks like I'll need to carry a backup pair of skivvies in the toolbox. [img]/ubbthreads/images/graemlins/smirk.gif[/img]
When I noticed mine go into regen in town my rpms only went too 900 when my foot was on the brake,it didnt try to push me threw the stoplight but I dont have 4.88's either.
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08 SD CC 6.4L 4x4
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Loaded Lariat/20" wheels
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Leveling kit/F350 blks
Rancho 9000X shocks
06 SD CC fx4 (traded ) Great Truck
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BTW, I thought that regen was deactivated when the brakes were applied? GShelton stated above that it almost pushed him through a stop sign?
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That was the strange part, it hopped up the RPMs, I laid on the brakes quite a bit harder, then it toned down shortly after. Like it was not supposed to do it or maybe it actually started the process right before I started to apply the brakes and it took that long for the RPM to climb. I would have only been doing 25MPH max on the road I was on at the time.
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When I noticed mine go into regen in town my rpms only went too 900 when my foot was on the brake,it didnt try to push me threw the stoplight but I dont have 4.88's either.
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I was not at a stop yet though. I was slowing for the stop sign. I am also not a late braker. Meaning I apply the brakes a ways back from the stop and slow into it. So I would have been dragging the brake, not sitting with it applied fully. (And I am sure the rear has a lot to do with the ease that it pushed past the brakes. LOL!)
Also, for the record, the next time it did the regen (which I believe was an actual full regen) it did it in a drive through. I was not moving, but I was in park. So 0mph but no brakes applied. I really think the first attempt might have been as I stated and it actually began the process right before I touched the brake pedal.
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2008 F-450 Lariat W/ Lots-o-Options - Built on Feb 7 2007, Shipped on Feb 12, 2007, Mine on Feb 22, 2007
'04 F-250 Harley-Davidson 6.0L CC SB 
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