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What could cause this?

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Old Feb 29, 2012 | 07:26 PM
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What could cause this?

I had a experience with a dead pedal. The day before I got a cleaning exhaust and of course I just pulled into the driveway. I shut it off started it the next morning and no notice of exhaust cleaning. I was low on fuel so I stopped and filled, started the truck and in about 50 feet as I turned onto the main road DEAD petal, glanced down and the exhaust cleaning flash on the dash. It felt as if I had shut down the truck, 2 or 3 seconds and it started to take off still struggling, after about a block it ran smooth again. What could have done this? It makes so sense to me that a regen could make this happen. Any thoughts on what could do this? Hope I don't have a bad HPFP
 
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Old Feb 29, 2012 | 07:35 PM
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Originally Posted by kmrgeorge
I had a experience with a dead pedal. The day before I got a cleaning exhaust and of course I just pulled into the driveway. I shut it off started it the next morning and no notice of exhaust cleaning. I was low on fuel so I stopped and filled, started the truck and in about 50 feet as I turned onto the main road DEAD petal, glanced down and the exhaust cleaning flash on the dash. It felt as if I had shut down the truck, 2 or 3 seconds and it started to take off still struggling, after about a block it ran smooth again. What could have done this? It makes so sense to me that a regen could make this happen. Any thoughts on what could do this? Hope I don't have a bad HPFP
Perhaps you picked up some water from refueling and it went straight through the system and the engine ran badly until the water was expelled. I know, the DFCM is supposed to stop it, but I'm just trying to think of ideas .

-los341
 
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Old Feb 29, 2012 | 07:40 PM
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It allmost sounds as left foot may have been on brake pedal a tad, since about 50 feet you turned. But it is something you cannot do with these trucks. Just a thought.
 
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Old Feb 29, 2012 | 08:58 PM
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I don't brake with my left foot and it would be impossible for fuel to travel from the tank to the engine that fast. I have driven over 800 miles in the past couple of days pulling 14K and not a single hickup. It it was the fuel it sure should have repeated. All that fuel was used and then some.
 
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Old Feb 29, 2012 | 09:03 PM
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I've had the same thing happen to me a few times. It cuts out and loses power when trying to go into regen. Mine hasn't done it since last winter. Seems to have just went away.
 
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Old Feb 29, 2012 | 09:24 PM
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Originally Posted by GCLL
I've had the same thing happen to me a few times. It cuts out and loses power when trying to go into regen. Mine hasn't done it since last winter. Seems to have just went away.
I believe it had something to do with regen. It started a regen and I shut it off and it had the dead pedal as it restarted regen the next day. I just can't understrand what in the regen could cause it to lose power
 
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Old Feb 29, 2012 | 09:53 PM
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Here is my post about it. It hasn't done it since then.

https://www.ford-trucks.com/forums/1...nto-regen.html
 
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Old Feb 29, 2012 | 09:57 PM
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I just noticed after I read my old thread again that it was suggested that it may have been the Motorcraft antigel. I used the cetane boost all this winter, no antigel, and I haven't had a single problem.
 
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Old Mar 1, 2012 | 12:00 AM
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I have never used an anti gell as I was in southern California. I did't have centane boost in either because California is suppose to have better fuel than we do in Washington state. I think I will take it to my dealer and see if it set a code, my guess is it didn't. I hope I never experience that again because when it lost power all I could think of was here we go with the HPFP and I'm 1200 miles from my dealer. Maybe I need to not read about bad fuel for awhile.
 
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Old Mar 1, 2012 | 12:31 AM
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Originally Posted by kmrgeorge
I have never used an anti gell as I was in southern California. I did't have centane boost in either because California is suppose to have better fuel than we do in Washington state. I think I will take it to my dealer and see if it set a code, my guess is it didn't. I hope I never experience that again because when it lost power all I could think of was here we go with the HPFP and I'm 1200 miles from my dealer. Maybe I need to not read about bad fuel for awhile.
The problem is drive by wire, and all the crap in modern vehicles. I belive stuff like this is going to happen. Its like driving a computter and they can do any wierd thing a computer can do. The creature comforts are better today but quality and and reliability was better in 1970.
 
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Old Mar 1, 2012 | 05:34 AM
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In my mind it sounds as if just before a regen starts there is some kind of switch, so maybe it's like the kind of feeling if we had two ignition systems and you could switch from A to B on the fly,mwhich would produce a little hiccup.

Maybe going into regen really is an electronic version of the above.
 
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Old Mar 1, 2012 | 09:28 AM
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Originally Posted by kmrgeorge
I don't brake with my left foot and it would be impossible for fuel to travel from the tank to the engine that fast. I have driven over 800 miles in the past couple of days pulling 14K and not a single hickup. It it was the fuel it sure should have repeated. All that fuel was used and then some.
I'm not sure it would be impossible. The low-pressure side of the fuel system is recirculating, so It's possible to to get new fuel from the tank at least to the HPFP before you even start the engine. From the HPFP, it's only a short distance to the injectors. If a little water were introduced into the tank, it could conceivably get to the injectors within 10-20 seconds causing the sputtering you talked about. Also, if there were water, then you would most likely have some in your DFCM. I'd suggest draining it to see .
 
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