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38000 mile DEF range?

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Old Dec 5, 2021 | 02:52 PM
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38000 mile DEF range?

Pretty sure it went thru a regen late last week, as the particulate filter was around 80% and now is 0%. But a week later after normal trips and more than usual idling since the last regen (it's cold in Alaska in the winter!), the DEF gauge reports full and 38000 range (DTE) and the particulate filter status is 0%. What's going on?
 
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Old Dec 5, 2021 | 03:23 PM
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DEF has nothing to do with the regen cycle, nothing to do with the particulate filter, totally separate system.

And, any 38,000 miles to empty message is just totally erroneous, not sure why it would come up with that or what the cause would be.
 
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Old Dec 5, 2021 | 04:12 PM
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thx. Of greater interest then is the filter % staying at 0% for the past three days of regular use - close to home and no little idling in this cold.
 
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Old Dec 5, 2021 | 05:39 PM
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Originally Posted by pjsinAK
thx. Of greater interest then is the filter % staying at 0% for the past three days of regular use - close to home and no little idling in this cold.
that's normal.
I believe this is one of the reasons Ford doesn't put the DPF% screen on most trucks. It just makes owners worry that something is wrong or not working right.
I had the DPF% screen go up to 10% after a regen in less that 10 miles, and I have seen it stay a 0% for two days and 100 miles.
if there is a problem you will get a CEL, if not, don't worry, be happy
 
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Old Dec 6, 2021 | 10:21 AM
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As I recall, my DPF gauge goes up slower in winter than it does in summer.
 
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Old Dec 6, 2021 | 10:52 AM
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thx for the feedback. I wonder if the DEF range keys off the DTE on the fuel side? I have a 60 gallon tank, range is around 1,000 miles. As I burned fuel, I noticed the DEF range declined. Odd. The summer/winter may make sense in that the blend for winter has less paraffin. No CEL messages - thanks bobv60 - so simply driving and enjoying the truck.



 
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Old Dec 6, 2021 | 04:04 PM
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How do you keep your truck so clean with all the snow you must get up there?
Sorry I know it's unrelated.
 
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Old Dec 6, 2021 | 04:23 PM
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periodic trips to the enclosed self wash place.
 
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