DPF Regen Rumor
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Posting Guru
Joined: Jan 2007
Posts: 1,527
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From: Grande Prairie, Alberta
DPF Regen Rumor
I heard through the grapevine that some of the trucks that are experiencing constant or multiple regens per day is a result of a back pressure sensor malfunction or possibly due to an exhaust leak between the two turbos. A fella I know was speaking to the service manager at the dealership where he bought the truck and that is what the service manager had told him.
I just thought I'd mention it in case no one else has heard of this or perhaps someone else has heard of this and can confirm it.
I just thought I'd mention it in case no one else has heard of this or perhaps someone else has heard of this and can confirm it.
New User
Joined: Feb 2008
Posts: 7
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From: East Coast
Don't know if this helps...I have a '08 250 FX4. It regens about every 100-200 miles while running 80 mile round-trip commutes, five days a week, in 50/50 interstate and city traffic. About once a tank full while on the open highway.
Senior User
Joined: Nov 2004
Posts: 147
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From: Upstate NY
what are signs that your truck is in regen? Mine seems to idle high around 1100-1300 unless i depress the brake pedal. This seems to happen in all weather conditions (0-50 F). i wonder if I am having a regen a few times a day or stuck in regen. Thanks for any help... average 40 mi trip daily, mostly 55-65mph.
Elder User
Joined: Feb 2004
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From: Aromas, CA
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New User
Joined: Feb 2008
Posts: 7
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From: East Coast
When mine is in regen the tail pipe is letting out white "smoke". It looks like I am killing mosquitos. Like gopedoligist said, it is short lived and over in a matter of seconds.
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New User
Joined: Oct 2007
Posts: 21
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Mine got stuck in regen back in December. They reflashed it and now I haven't had an active regen that I could feel since. About 3,000 miles with no regen at all. Of course, I have sooty pipes and can't get them to replace the DPF, either...
Senior User
Joined: Nov 2003
Posts: 175
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I've seen the white cloud regen on the highway a few times. It lasts for about 30 sec or so, then the smoke clears. BUT - that doesn't mean the Regen is over, it's just the beginning. You can tell easily if you reset your MPG computer, it will be horrible MPG, then when Regen is done, it will immediately begin to get better mpg - fast. Usually takes 10 min or so. I say, mine's working fine.
Freshman User
Joined: Aug 2007
Posts: 36
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From: Spring Branch, TX
My truck went into regen today (idle at 1100rpms) when accelorating the engine got louder (kinda like a deep spark knock) and was blowing white smoke. each time i noticed the sound during regen I have the white smoke. The frist time I was pulling a 5th/w, there was so much smoke I pulled over to check what was wrong. Anybody else notice this?
Senior User
Joined: Nov 2007
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Originally Posted by rvtec
My truck went into regen today (idle at 1100rpms) when accelorating the engine got louder (kinda like a deep spark knock) and was blowing white smoke. each time i noticed the sound during regen I have the white smoke. The frist time I was pulling a 5th/w, there was so much smoke I pulled over to check what was wrong. Anybody else notice this?
Senior User
Joined: Oct 2007
Posts: 130
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From: in front of this PC
Originally Posted by rvtec
My truck went into regen today (idle at 1100rpms) when accelorating the engine got louder (kinda like a deep spark knock) and was blowing white smoke. each time i noticed the sound during regen I have the white smoke. The frist time I was pulling a 5th/w, there was so much smoke I pulled over to check what was wrong. Anybody else notice this?