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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 11-09-2008, 11:25 PM   #1 (permalink)
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Cleaning Exhaust Filter?

I had my 6.4L in for recalls and now the truck dash read out keeps indicating "Cleaning Exhaust Filter" every day (usually once a day for about 30 miles or so). They told me they did not do PCM update but did do the instrument cluster. Kind of lost here! What did they do that is causing the readout to indicate this filter cleaning chore?

P.S. Has anyone out there changed the ATF and filter yet? I dont have the remote filter and was just wondering if changing the filter located inside the transmission was simple enough to do on my own before I take the cover off.
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Old 11-10-2008, 12:05 AM   #2 (permalink)
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it means your truck is going into regen. ITs fine
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Old 11-10-2008, 07:14 PM   #3 (permalink)
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It's Fine?! The man said his truck was regening every day! That's not normal or fine.
Gfreeman, I'd take it back in to the dealer. As far as the instrument panel update but not the PCM update, I've never heard of that (but I don't really know and I don't claim to know). I was under the impression that it's all or nothing. Hopefully someone with some real knowledge will chime in.
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Old 11-10-2008, 08:13 PM   #4 (permalink)
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Real Knowledge: There is no set time frame, ect. that a regen cycle will occur. There isn't anything in writing that says how many regens are normal and how many are excessive. It all depends on idle time, maintnace, fuel, temperature, and many other variables. You will see alot more passive regen (while driving) than active regen (in park). What is boils down to is how much ash and soot is present in the DPF. If you aren't blowing black smoke and the truck runs fine and your engine oil level is ok and not overfull then don't worry about it.
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Old 11-10-2008, 10:45 PM   #5 (permalink)
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DW, if he is driving city only, its now being allowed to complete a regen, and would than seem to do it daily
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Old 11-11-2008, 12:00 AM   #6 (permalink)
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yes mine does that, with my job i go for short distances and then stop every time its in park it stops the regen so when i start to move it says its cleaning it. So you are normal.
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Old 11-11-2008, 01:45 AM   #7 (permalink)
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That happened to me. My daily drive was too short for the truck to complete a regen so I took it out on the highway to let it complete the cycle.
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Old 11-11-2008, 06:29 AM   #8 (permalink)
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Gofasterdamnit, since you are a diesel tech maybe you have some real knowledge about my situation. My truck hasn't regened in months! I had a new flash done back in July (the one that was supposed to let you know when it's regening) but you have to watch for it closely because it just pops up on the dash computer for a second. I never caught it. I had the 08B07 done October 23 and still no sign of a regen. My truck will leave a trail of black smoke and has sooty tailpipes. Is it possible that I have a crack in the DPF that is just enough to keep my back pressure within the threshold to not regen? My truck has had black tailpipes since new. I witnessed 2 or 3 regens the first couple of months that I had the truck, the kind that did it while parked.
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Old 11-11-2008, 01:06 PM   #9 (permalink)
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Gofasterdamnit, since you are a diesel tech maybe you have some real knowledge about my situation. My truck hasn't regened in months! I had a new flash done back in July (the one that was supposed to let you know when it's regening) but you have to watch for it closely because it just pops up on the dash computer for a second. I never caught it. I had the 08B07 done October 23 and still no sign of a regen. My truck will leave a trail of black smoke and has sooty tailpipes. Is it possible that I have a crack in the DPF that is just enough to keep my back pressure within the threshold to not regen? My truck has had black tailpipes since new. I witnessed 2 or 3 regens the first couple of months that I had the truck, the kind that did it while parked.
Since it's been a few months either everything is working normally and the PCM sees no need to perform a regen or there is a problem. There is a possibility that the tech that did 08B07 did not program the instrument cluster. I saw on the FMC message board that several guys were complaining that the IC's would not program. You see when the PCM is programmed, the TCM and FICM (6.0) will automatically update. With 08B07, after the ECM and TCM are programmed, the tech is prompted and reminded to program the IC, it does not do it automically. There is a chance the truck is going into passive regen on the highway so you don't notice it and if the IC wasn't updated then the "Cleaning Exhaust Filter" message will not appear.
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Old 11-11-2008, 04:09 PM   #10 (permalink)
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Originally Posted by Gofasterdammit View Post
Since it's been a few months either everything is working normally and the PCM sees no need to perform a regen or there is a problem. There is a possibility that the tech that did 08B07 did not program the instrument cluster. I saw on the FMC message board that several guys were complaining that the IC's would not program. You see when the PCM is programmed, the TCM and FICM (6.0) will automatically update. With 08B07, after the ECM and TCM are programmed, the tech is prompted and reminded to program the IC, it does not do it automically. There is a chance the truck is going into passive regen on the highway so you don't notice it and if the IC wasn't updated then the "Cleaning Exhaust Filter" message will not appear.
Thanks for the info. So I guess I should take it back after they get the 08B07 straightened out and ask them to do it again?
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Old 11-14-2008, 04:03 PM   #11 (permalink)
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Quote:
Originally Posted by dieselwhisperer View Post
My truck will leave a trail of black smoke and has sooty tailpipes. Is it possible that I have a crack in the DPF that is just enough to keep my back pressure within the threshold to not regen? My truck has had black tailpipes since new.
I have a question about this. I thought the whole reason for the DPF was to prevent the black smoke. If that is true how can anyone say that this is normal?
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Old 11-17-2008, 10:47 AM   #12 (permalink)
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I know when Mine is regening my lie-o-meter mpg drops like a rock. normaly 12-13 around town but as soon as a regen starts, if I dont catch it on the display my mpg drops to 8. Doing a system check it shows cleaning filter as the last message. Same for on the Hwy, running 15-17 depending and will drop to 9 or so. When its done the mpg goes right back up. I believe the latest flash the one on hold will cause the message to stay on for the duration.

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Old 11-17-2008, 08:58 PM   #13 (permalink)
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the b07 reflash is on hold because the tcm is loosing its program and going blank
i reflashed my truck with no problems.
As far as black smoke and soot in the tail pipe something is not cleaning the exhaust,my truck has 12k on it and tips are clean no soot??????
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Old 11-18-2008, 06:00 PM   #14 (permalink)
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I just got back home from a 460 mile drive to Nashville and I know it went through the regen 2 times. The second time it did it was on the way home and I had the Avg MPG on the display (which was 14.4) and it slowly dropped to 14 mpg so I did the scan thing and it said it was cleaning the exhaust filter. At 2700 miles a Job 3 and no re-flashes the tail pipe is still clean.
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Old 11-20-2008, 11:41 AM   #15 (permalink)
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Tail pipe should be clean.
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