2008 f350 6.4 cleaning exhaust system? - Diesel Forum - TheDieselStop.com
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6.4L Power Stroke Engine and Drivetrain Discussion of the 6.4L Power Stroke diesel engine and drivetrain in the 2008-Up 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.

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Old 09-25-2012, 05:37 PM   #1 (permalink)
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2008 f350 6.4 cleaning exhaust system?

Hi guys I recently purchased a 2008 f350 6.4 for my lawn care business and when I'm not pulling my trailer full of mowers it does fine and only cleans system once per tank but if i have it under strain it says it cleans the exhaust at least 2 times a day and it makes the exhaust hott(which I know is normal) but is it normal to clean it so much what would cause this? Also it kills my fuel mileage is there a way to unhook and bipass this? Any help would be appreciated thanks
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Old 09-25-2012, 06:34 PM   #2 (permalink)
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Hi guys I recently purchased a 2008 f350 6.4 for my lawn care business and when I'm not pulling my trailer full of mowers it does fine and only cleans system once per tank but if i have it under strain it says it cleans the exhaust at least 2 times a day and it makes the exhaust hott(which I know is normal) but is it normal to clean it so much what would cause this? Also it kills my fuel mileage is there a way to unhook and bipass this? Any help would be appreciated thanks
The only way to bypass it is to remove the dpf and get a tuner that turns off the regen. Have you taken it out on any long drives since you've had it at speeds above 80 kph?
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Old 09-25-2012, 09:03 PM   #3 (permalink)
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Originally Posted by charles23 View Post
Hi guys I recently purchased a 2008 f350 6.4 for my lawn care business and when I'm not pulling my trailer full of mowers it does fine and only cleans system once per tank but if i have it under strain it says it cleans the exhaust at least 2 times a day and it makes the exhaust hott(which I know is normal) but is it normal to clean it so much what would cause this? Also it kills my fuel mileage is there a way to unhook and bipass this? Any help would be appreciated thanks
On ours it's normal. Pulling loaded in mountainous areas and accelerating to merge were typically high smoke events for our 7.3L, and I assume the same with our current truck. That makes a ton of soot and the need to clean more often. For two years now, when traveling along I-90 through Idaho and Montana, we've had our current truck give the "Drive to Clean" message almost hourly. David
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Old 09-26-2012, 12:57 AM   #4 (permalink)
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Typically if you are getting the "drive to clean" message you have been doing short trips and not letting the regen finish. When I still had my dpf mine regened about once a tank maybe 2 at the most once in awhile but I do mostly highway driving.
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Old 09-26-2012, 05:02 AM   #5 (permalink)
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See that's what mine is doing I don't do a lot of highway driving more in town and it cleans about once an hour or so and I always let it finish cleaning before shutting it off.. so than this is normal? My question is is there a way to unplug the regen cycle without doin a DPF delete like unpluggin the sensor on top of DPF or will that cause the DPF to get full and not allow air through? I would really like to eliminate this to get better fuel mileage but I can't do the complete DPF delete because I have to have D.O.T inspection for my truck and it won't pass if I do
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Old 09-26-2012, 05:23 AM   #6 (permalink)
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you will hve to tune in order to get rid of the DPF. DPF-R may be your low cost ticket. But you will need s pipe to replace the DPF.

That in town driving is killing you. Are you also letting it idle alot? Shut it down if you are.
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Old 10-02-2012, 04:31 PM   #7 (permalink)
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I tow an enclosed car trailer about once a month. The whole package weighs about 8Klbs. When I am towing it I get about 11mpg and regen every quarter tank.
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Old 10-02-2012, 04:34 PM   #8 (permalink)
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I tow an enclosed car trailer about once a month. The whole package weighs about 8Klbs. When I am towing it I get about 11mpg and regen every quarter tank.
That seems about right, the longer you could stretch your hwy time on these trips, the frequency between cleanings would get longer.
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Old 10-02-2012, 06:30 PM   #9 (permalink)
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Not only is constant regen killing your MPGs its also stressing the number 7 and 8 cylinder as well as the turbo/s.

In order to NOT have that happen you must have a tuner and a delete pipe.
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