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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 12-02-2009, 06:43 PM   #1 (permalink)
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Dpf?

I drove over 300 miles today mainly interstate driving, counted 6 regens and noticed a stumble in the engine at 2700 rpms. I noticed it would stumble when I took off after exiting the highway. When it would stumble I could accelerate out of the stumble and then when I leveled out on the highway it would go into regen. Turned 100000 miles Monday, do I have a clogged DPF?
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Old 12-03-2009, 07:38 AM   #2 (permalink)
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I drove over 300 miles today mainly interstate driving, counted 6 regens and noticed a stumble in the engine at 2700 rpms. I noticed it would stumble when I took off after exiting the highway. When it would stumble I could accelerate out of the stumble and then when I leveled out on the highway it would go into regen. Turned 100000 miles Monday, do I have a clogged DPF?
6 Regens in 300 miles is about 5 too many. I'd say your DPF is clogged and needs to be cleaned or replaced.
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Old 12-03-2009, 07:11 PM   #3 (permalink)
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Thanks for the reply. I did not get a chance to call the dealer today. I drove around 150 miles today, highway and city, I had two regens, but no stumble at 2700 rpms like yesterday.
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Old 12-07-2009, 07:50 PM   #4 (permalink)
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That sounds like way too many regens. I usually get 2-3 full tanks of fuel avg about 300-325 miles per tank before I even get one regen cycle.
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Old 12-07-2009, 08:10 PM   #5 (permalink)
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Mine regens at 150 miles like clockwork,wished mine would go 300 before a regen.
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Old 12-07-2009, 08:27 PM   #6 (permalink)
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I drove over 300 miles today mainly interstate driving, counted 6 regens and noticed a stumble in the engine at 2700 rpms. I noticed it would stumble when I took off after exiting the highway. When it would stumble I could accelerate out of the stumble and then when I leveled out on the highway it would go into regen. Turned 100000 miles Monday, do I have a clogged DPF?
I doubt your dpf is clogged up. Most likely something else. Take it to a good Ford dealer and have it ck'd out and let us know. Good luck..........
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Old 12-07-2009, 09:31 PM   #7 (permalink)
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Likely just a sensor.
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Old 12-12-2009, 01:51 PM   #8 (permalink)
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My dream is when they prove this "global warming" is BS maybe diesel trucks can go back to being powerful, fuel efficent vehicles! I guess I can dream!
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Old 12-18-2009, 05:32 PM   #9 (permalink)
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I doubt your dpf is clogged up. Most likely something else. Take it to a good Ford dealer and have it ck'd out and let us know. Good luck..........
Talked to the dealer yesterday, he said that was normal, just keep driving!
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Old 12-18-2009, 06:28 PM   #10 (permalink)
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My dream is when they prove this "global warming" is BS maybe diesel trucks can go back to being powerful, fuel efficent vehicles! I guess I can dream!
Amen to that! Now for the tree huggers out there - where I park my truck at work there are some shrubs that I back up to and the ones on the tail pipe side are almost dead. I wonder what kind of pollutants these 6.4's emit to kill them.
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