Another Regen issue
Thread Starter
|
Freshman User
Joined: Jan 2010
Posts: 42
Likes: 0
From: florida
Another Regen issue
I'll try to keep this post as short and simple as I can. Recently, my truck went into Regen three days in a row. My driving habits didn't change and I averaged 2 Regens a week. I have also noticed gray looking soot on the inside tailpipes. I took the truck to the dealer and the service writer began calling me with questions about oil changes and maintenance. I assured him that I follow the severe duty schedule and only use Motorcraft oil and parts. After two days, he declared that there's nothing wrong with my truck. He then told me that everytime I hit the brakes, the Regen process stops. I begged to differ and he corrected himself by saying that if my speed drops below 30 MPH, the "timer on the Regen clock starts all over again". Although he's a nice guy, I don't feel anyone there knows what they're talking about. I pressed him about having a bad DPF, but he assured me that it's fine. So my question is this, if the truck drops below 30 MPH, does the Regen process stop, go on hold, start all over, or remain constant until I put it in park? Thanks for reading my post. LEO.
New User
Joined: May 2010
Posts: 8
Likes: 0
I have seen mine be in regen and drop below 30mph and it is still in regen for some time while I continue to drive. The only time that I have kicked it out of regen is when I am in town at a light I will put it in park. This allows me time to get on the freeway and drive through the regen cycle.
Senior User
Joined: Oct 2009
Posts: 161
Likes: 0
Leo99 exposes a flaw in general knowledge of Ford technicians, regarding DPF behavior, that I have also experienced. Now I'm not saying I know all there is know about DPF intricacies, but I can't seem to get common answers to my questions from any two technicians at several dealerships that I have tried. The last time I attempted to get solid answers on this subject, the service manager disappeared for a few minutes and came back with a copy of the standard Ford documentation on what to expect regarding DPF regen. Like a woman, I've about given up trying to understand what happens and why. 
Super Moderator
Joined: Aug 2008
Posts: 37,379
Likes: 1,863
From: Frederick, MD
depends on your software version.
Orignal you had to be over 30.
Second one shows the message all the time, will quit if in park but stays on and running period.
3rd update takes away the message. Not sure what else they did but the regen keeps going unless in park.
Orignal you had to be over 30.
Second one shows the message all the time, will quit if in park but stays on and running period.
3rd update takes away the message. Not sure what else they did but the regen keeps going unless in park.
Cargo Master
Joined: Jul 2008
Posts: 2,577
Likes: 56
Leo - what year is your truck?
I have seen 4 regens in one day. My explaination for it, and I have only seen it once, is that it started on my way to work without enough time to clean the filter. When I went to lunch it did the same thing - started a regen and wasn't able to clean before I shut it down. When I went back to work the same thing happened. At the end of the day when I went home I finally drove enough to let it clean - 25 miles and it kicked on shortly after I was on the road.
So far I have never seen it do this again. Putting it in park does kill the regen process.
I have seen 4 regens in one day. My explaination for it, and I have only seen it once, is that it started on my way to work without enough time to clean the filter. When I went to lunch it did the same thing - started a regen and wasn't able to clean before I shut it down. When I went back to work the same thing happened. At the end of the day when I went home I finally drove enough to let it clean - 25 miles and it kicked on shortly after I was on the road.
So far I have never seen it do this again. Putting it in park does kill the regen process.
Trending Topics
Post Fiend
Joined: Jan 2009
Posts: 6,521
Likes: 11
From: Greenwood, SC
Leo99 exposes a flaw in general knowledge of Ford technicians, regarding DPF behavior, that I have also experienced. Now I'm not saying I know all there is know about DPF intricacies, but I can't seem to get common answers to my questions from any two technicians at several dealerships that I have tried. The last time I attempted to get solid answers on this subject, the service manager disappeared for a few minutes and came back with a copy of the standard Ford documentation on what to expect regarding DPF regen. Like a woman, I've about given up trying to understand what happens and why.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalyptic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
Hotshot
Joined: Nov 2000
Posts: 11,591
Likes: 14
From: Pflugerville, tx
Leo - what year is your truck?
I have seen 4 regens in one day. My explaination for it, and I have only seen it once, is that it started on my way to work without enough time to clean the filter. When I went to lunch it did the same thing - started a regen and wasn't able to clean before I shut it down. When I went back to work the same thing happened. At the end of the day when I went home I finally drove enough to let it clean - 25 miles and it kicked on shortly after I was on the road.
So far I have never seen it do this again. Putting it in park does kill the regen process.
I have seen 4 regens in one day. My explaination for it, and I have only seen it once, is that it started on my way to work without enough time to clean the filter. When I went to lunch it did the same thing - started a regen and wasn't able to clean before I shut it down. When I went back to work the same thing happened. At the end of the day when I went home I finally drove enough to let it clean - 25 miles and it kicked on shortly after I was on the road.
So far I have never seen it do this again. Putting it in park does kill the regen process.
Sam
Thread Starter
|
Freshman User
Joined: Jan 2010
Posts: 42
Likes: 0
From: florida
KC8QV0- My truck is an 08 Job 2. It went into Regen yesterday afternoon and I drove it until the cycle was complete with no obvious issues. The dealership also gave me a copy of a TSB that attempts to explain the Regen procedure. It talks about a Drive until Clean message, which I've never seen on the display. Thanks for all of the replies to my post. LEO.
Super Moderator
Joined: Aug 2008
Posts: 37,379
Likes: 1,863
From: Frederick, MD
KC8QV0- My truck is an 08 Job 2. It went into Regen yesterday afternoon and I drove it until the cycle was complete with no obvious issues. The dealership also gave me a copy of a TSB that attempts to explain the Regen procedure. It talks about a Drive until Clean message, which I've never seen on the display. Thanks for all of the replies to my post. LEO.
Hotshot
Joined: Nov 2000
Posts: 11,591
Likes: 14
From: Pflugerville, tx
I bought my 08 Job 1 last fall, and saw the 'Drive to clean exhaust filter' message once, when I was doing stop & go errands around town. never really got above 40mph for more than a mile.
my trip home is 6 miles at 60+mph.. it went into active regen, and I got home it was still on. I turned off the truck, and the next day went to a store 30 miles away at 60+mph, regen restarted as they told me it should, and completed before I arrived at the store.
Sam
my trip home is 6 miles at 60+mph.. it went into active regen, and I got home it was still on. I turned off the truck, and the next day went to a store 30 miles away at 60+mph, regen restarted as they told me it should, and completed before I arrived at the store.
Sam
Elder User
Joined: Mar 2004
Posts: 616
Likes: 1
From: Florida Parishes, LA
I have not been able to get a staight answer on the process either. I have the latest update and most of the time it works correctly. But sometimes it has a mond of its own. I will go into regen 4-5 times in 1-200 miles. I will also get the drive to clean message and have also had the old cleaning exhaust filter message comeon and stay on all the way through the regen. I have recorded it the last couple of times to show to my service adviser on my upcoming service. I think that it has alot to do with your fuel. I notice it more when I get fuel from a different station than normal.
Hotshot
Joined: Nov 2000
Posts: 11,591
Likes: 14
From: Pflugerville, tx
the filter catches soot. when the fitler gets 'full' (pressure sensor), regen is started to burn up the captured soot.
so, how fast does soot accumulate? depends on the fuel and driving conditions. steady state driving there is not much soot.. lots of acceleration there is lots of soot.. Biodiesel causes lots of soot.
LSD vs ULSD generates LOTS of soot.. these trucks are supposed to be ULSD ONLY.. but sometimes you still find LSD..
anyhow, thats how it is supposed to work.
as you can tell there are a couple of points of failure
1. more soot generated than expected , LSD, Bio...
2. bad sensor
3. something wierd happens that causes 1.
one of the forums was discussing an engine that wouldn't start or run cause the DPF was 100% clogged. take off the DPF and it starts and runs.. BUT there us a huge cloud of oil smoke coming from the engine.. turns out to be a bad injector, dumping fuel too fast..
is that the DPF's fault? no.. if you DPF delete, will that solve the problem, NO.. you will have a big cloud of smoke all the time, til you fix the injector problem.
Sam
so, how fast does soot accumulate? depends on the fuel and driving conditions. steady state driving there is not much soot.. lots of acceleration there is lots of soot.. Biodiesel causes lots of soot.
LSD vs ULSD generates LOTS of soot.. these trucks are supposed to be ULSD ONLY.. but sometimes you still find LSD..
anyhow, thats how it is supposed to work.
as you can tell there are a couple of points of failure
1. more soot generated than expected , LSD, Bio...
2. bad sensor
3. something wierd happens that causes 1.
one of the forums was discussing an engine that wouldn't start or run cause the DPF was 100% clogged. take off the DPF and it starts and runs.. BUT there us a huge cloud of oil smoke coming from the engine.. turns out to be a bad injector, dumping fuel too fast..
is that the DPF's fault? no.. if you DPF delete, will that solve the problem, NO.. you will have a big cloud of smoke all the time, til you fix the injector problem.
Sam
