I just went to a location about an hour away. I noticed my truck go through a regen. I know they are harder to catch since the reflash. Well on the way back I noticed it starting another regen cycle. Milage between regens is approx 75-80 miles. The trip was mostly highway except for about 12 miles. Is this Span between regens a reason for concern? I will be do for an oil change in about 1k. Is this something to bring up or normal operation?

 

I would think you are fine, maybe it just did not have time to finish and re-started again. Just monitor it until your next regen.

 

It completed the first regen since I was still half our away from destination. It took about 15 min @ 65 mph to complete. I took truck for oil change and spoke to service advisor he did say it was odd but everything checked out ok. I will be driving to Austin tomorrow so I will monitor the regens during the trip. I stocked on cetane booster while at dealer.

 

I have had that happen and attributed it to the last batch of fuel I pumped. It took a couple of fill ups to get the regens back to normal of 150-300 miles apart. I do not use bio unless I have to and the last B5 I pickedup was at Loves on 291 NW of Houston, I was regenning every 60-70 miles. Diesel Kleen helped but not tremendously.

 

I will watch the regens today. I usually fill at the same gas station. I will ask wife if she filled up somewhere else. Before I leave I will go by the chevron I usually fill up at and add fords cetane booster.

 

Asked wife where she filled up. Walmart was the place.

 

My work truck started doing the same thing about 3 months ago. It never threw a code so not much was thought about it. Then it kept getting worse, down to about 50 miles between regens. Turned out to be a stuck injector causing 'overfueling'. Replaced the injector and all was fine until a rocker arm failure. If it is under warranty you may want to have it scanned by Ford. Maybe cheezit or Senix will be able to tell you more.

 

How were your mpgs while this was all happening?

 

Since it is an F450 carrying a very heavy load, the mileage was only about 2 mpg worse. That was the reason Ford wasn't worried at first. However it only gets 7.5-8 when it's healthy. It is an ambulance and idles a lot.

 

same thing happened to me started as puffs of gray smoke after a cold start then regen notifications went from 550 miles to 120 over night and more gray smoke just as often as daily took it to the dealer
1st they had it when i was on vacation i told them to drive it got back to the truck with 12 more miles on it and a computer flash done
2nd a week later and 500miles acted worse with regens every 80 miles they had it for a day and told me they fixed it with a slow regen
tisked i drove it 400 miles to 99986 miles regen every 60-80 miles when it smoked after a regen so bad i couldn't see the head lights of the vehicles behind me at 4.30am and couldn't go faster than 35mph. so mad called ford customer service and then the dealer and repeated that i dont care how much fuel it comes back with and how many miles as i told them the other times just drive it home for free then when it acts up in 80 miles you will see, two weeks later went to grab something from floorboard they said it was done that it didn't act up in the 40 miles, i just about flung the service desk through the window when the manager was finally brought up to speed on my case then 3 weeks later and 275 miles it didn't act up on them i took the truck back and let them be

2k later it started to smoke around regens again that i could tell of a regen when @55mph reset the mpg and it will rest around 10mpg when under regen or 17 when not
then at 104000 miles i couldnt drive faster than 35mph or past 2200rpm and a dtc set p0204 injector 4 open circuit and smoking and missing like hell

the tecks agreed it should be warranted no help from the service desk though 980$ for the one injector installed and possibly 2 weeks lag time and even if it was covered wasn't going to be worth it renting my dads or neighbors truck for 2 weeks giving them money even if they werent asking for it would not be worth it. i ended up buying an injector from the dealer for 250$ plus some G05 coolant from napa and replaced it myself now i have a p0088 code (fuel rail pressure too high)( likely because i wasn't able to reset the FI adapts) but the 4 hours of work and a lot easier than i had anticipated


and as for fuel mileage i went from my regen notifications at/ regular commuite 36 miles one way and driving 45-65 miles and hour on the back roads of va
400-500 miles apart at 18.2
300 apart at 16.7
120 apart at 14.5
50 apart at 11.2
then 50 miles apart on 47 cetane found at BP giving me 12.4 mpg
i had also started running extra motorcraft additive and it counteracted the rapid regens and some mpg but mostly the 100ft clouds of gray smoke when a regen tried to start when in city driving
hope this was helpful

 

the dpf was the worst thing that happened to the diesel in just driving and with diagnosis because with me they treated the rapid regens as a problem with the filter and not the cause being either excess fuel or a coolant leak they cant at the dealer just unbolt the exaust to see signs of smoke under conditions the book stops them from doing their job like it stopped me when i worked for goverment motors on a kodiac bodied as a camper with 3300 miles regen every 100 miles likely a bad fuel injector from the factory but we couldn't do anything not even with the teckII to let it run with the dpf unbolted we would of seen smoke then

just sucks

 

I'd advise watching it a little first before I did anything. Fuel quality, engine load, many factors will dicate regens. Over the last few days with 7K behind me I have had regens over 200 miles apart and then some at 130-150 miles apart. Some was because of hills but most was probably due to fuel quality.

 

Came back from Austin and regen averaged between 120-150 miles between. Truck unloaded except for family and not towing. Also this is the first time I added cetane booster to tank. I averaged 14mpg on trip @ 65-75mph.

 

Be sure to keep an eye on your oil levels. Those regens are a little close when running empty but within Fords specs.

 

Based on my experience I think the regens became closer together as a result of the last flash (11B23 or whatever it was). Mine went like clockwork to 105 miles apart towing and about 150 empty. That began right after the reflash. Prior to that they were further apart and more random.