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Old Mar 15, 2023 | 11:35 AM
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Koda1965!'s Avatar
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Regen Issues

I have a 2017 F250 SD 4X4 with a 6.7 Liter in it. the truck has 145K miles and I idle a lot as I am job sites almost every day and the truck is my office.
My truck regens constantly @ 1000 RPMS and stinks when it does - The truck will regen to to three times in an hour of idle time........

What's wrong or is this normal ?

Ross
 
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Old Mar 15, 2023 | 11:44 AM
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How often do you take the truck out on the highway and drive it at 50MPH+ ?
 
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Old Mar 15, 2023 | 11:44 AM
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Originally Posted by Koda1965!
I have a 2017 F250 SD 4X4 with a 6.7 Liter in it. the truck has 145K miles and I idle a lot as I am job sites almost every day and the truck is my office.
My truck regens constantly @ 1000 RPMS and stinks when it does - The truck will regen to to three times in an hour of idle time........

What's wrong or is this normal ?

Ross
I don't think those are "regens".
The factory settings do not allow stationary regens, they must be forced with special software.
Is it really cold where you are at?
The truck will go to high idle in cold weather.
 
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Old Mar 15, 2023 | 11:56 AM
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I live in Florida its not a cold weather issue !
 
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Old Mar 15, 2023 | 11:59 AM
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These trucks are programed to elevate the idle during prolonged idling to handle unburned hydrocarbons in the SCR (according to Ford). Doesn't matter if it's cold or hot out. Could be like a mini regen.



 
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Old Mar 15, 2023 | 11:59 AM
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(deleted, as evidence of operation posted at the same time)
 
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Old Mar 15, 2023 | 12:02 PM
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Originally Posted by 4wd6.7L
These trucks are programed to elevate the idle during prolonged idling to handle unburned hydrocarbons in the SCR (according to Ford). Doesn't matter if it's cold or hot out. Could be like a mini regen.


OK - this last response makes sense...............
So I have to live with it or delete it
 
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Old Mar 15, 2023 | 12:05 PM
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Originally Posted by Koda1965!
OK - this last response makes sense...............
So I have to live with it or delete it
If you are worried about smells while idling, I do not reccomend deleting it.

Unless you grew up operating pre emissions tractors like I did, you might not like the diesel exhaust smell

 
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Old Mar 15, 2023 | 12:06 PM
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Originally Posted by Koda1965!
OK - this last response makes sense...............
So I have to live with it or delete it
I will say that I haven't experienced this myself, since I don't idle for long, but I have read that tapping the brake or accelerate pedal will stop it but only temporarily. Apparently it will idle up again after several minutes.
 
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Old Mar 15, 2023 | 12:09 PM
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What you're smelling is the DEF which is injected to help the SCR function during high idle. DEF is referred to as "Cows Urine" for a reason.

Nothing out of the norm as far as function for a diesel sitting idle while you work in the cab.
 
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Old Mar 15, 2023 | 12:23 PM
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For anyone who idles their truck a lot, the high idle should be set up and used any time prolonged idling takes place.
Idling any ICE engine at low rpm for extended periods is bad for them, and is especially so for emissions regulated engines.
Way back when I drove 18 wheelers and we idled overnight, we always set a high idle speed.
 
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Old Mar 15, 2023 | 09:01 PM
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Originally Posted by OverheadCram
What you're smelling is the DEF which is injected to help the SCR function during high idle. DEF is referred to as "Cows Urine" for a reason.

Nothing out of the norm as far as function for a diesel sitting idle while you work in the cab.
that smell is not the DEF. It is the DPF. My excavator does this in re-burns/idling. It does not have DEF on it! The smell is kinda a sweetish smell. My trucks do it sometimes as well.
 
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Old Mar 15, 2023 | 09:35 PM
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Originally Posted by ford4wd08
If you are worried about smells while idling, I do not reccomend deleting it.

Unless you grew up operating pre emissions tractors like I did, you might not like the diesel exhaust smell

and if you did grow up with it, its a nice reminder of the good old days
 
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Old Mar 20, 2023 | 09:39 AM
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How often are you going through def on 2020+ trucks? I purchased a 2020 and I've gone through about 1 3/4 tanks of gas and Def doesn't appear to have moved at all. Not sure if that's normal.
 
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Old Mar 20, 2023 | 10:01 AM
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Originally Posted by Adidasunt8
How often are you going through def on 2020+ trucks? I purchased a 2020 and I've gone through about 1 3/4 tanks of gas and Def doesn't appear to have moved at all. Not sure if that's normal.
Takes a very long time to use up DEF in my '20. Even with stop and go non-highway driving. Last time I filled up with DEF the gauge said that I was good for 6K miles. So, not unusual.
 
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