Cleaning Exhaust Filter? - Ford Powerstroke Diesel Forum
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post #1 of 9 Old 12-28-2013, 06:21 AM Thread Starter
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Cleaning Exhaust Filter?

I am new to the f250 Diesel world. This 2013 f250 diesel is my first and i love it. I have a question that i know you all can help with.

On my dash it will pop up and say "Cleaning Exhaust Filter", immediately after this, the mpg drops and will last like that for a little while. Is there a way to stop this? What does it do? If i stop it, does it hurt the truck? I am looking to get the mpg raised as much as i can, of course i know it won't great mpg, but i don't want it dropping just for the he11 of it.

Any input would be great as i am learning this new truck. thanks all.
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post #2 of 9 Old 12-28-2013, 07:05 AM
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Congrats on the new truck, and welcome to the org!

This is the regeneration process for your Diesel Particulate Filter (DPF). Fuel is injected into the exhaust to burn off anything thats caught in the filter. As this fuel is not being used to get you down the road, MPG is in the toilet. It only lasts a few minutes then your back to normal.

Im no mechanic, this is just how i understand it. Maybe one of the smart guys can chime in with more details.

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post #3 of 9 Old 12-28-2013, 07:08 AM
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The only way to stop it is to delete, tune, and loose your warranty. Spend some time reading the diesel supplement that came with your owners manual. It will explain everything.

The filter cleaning is the DPF burning off it collected particles. It will drop your mpg when it occurs and should occur every 200-500 miles depending on your driving habits. It should last 10-20 minutes of steady driving each time. There is no way to prevent it from starting and no control of it unless you got an option on a lower trim model. If you turn off your truck before it's done, it may start up again when you start up depending on how much it cleaned before. At some point, you'll have a drive to clean warning pop up if the automatic cleaning hasn't been enough. At that time you need to take a 20 minute drive to clean the DPF so you don't harm it.

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post #4 of 9 Old 12-28-2013, 07:12 AM
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You bet, it's supposed to do this! And it needs to to keep your Diesel Particulate Filter (DPF) clean, it's called a regen. How often the truck needs to accomplish this is dependent on how you are driving your truck. Lots of idle time and city driving is low combustion temps and dirty DPF in your exhaust pipe. Towing and highway equals higher exhaust temps and that helps bun the soot out of the DPF naturally, so less regents.

During an active regen your truck is putting unburnt diesel fuel ( this is why your instantaneous mpg goes down) into the exhaust stream, when it hits the DPF it raises the temp to around 1000- 1200 degrees or so, (crawl under the truck and look at all the heat shielding on your exhaust pipe) this burns out the soot in the DPF. It has nothing to do with the Diesel Exhaust Fluid (DEF) or the Exhaust Gas Recirculation (EGR) processes. Those help reduce NOx. And are independent processes.

You need to let regens happen if you can, and for sure when it tells you to go drive to do so. A clogged DPF is a bad thing.....

Read up on your diesel sup and do some searching on this site!

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post #5 of 9 Old 12-28-2013, 07:20 AM
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Welcome, you have found a great forum for information ,you will learn to love this truck.:
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post #6 of 9 Old 12-28-2013, 07:23 AM
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Quote:
Originally Posted by Tweez View Post
Welcome, you have found a great forum for information ,you will learn to love this truck.:
you will send me $50, you will not pass go......sorry couldn't pass it up.
Congrats on the truck!

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post #7 of 9 Old 12-28-2013, 07:27 AM
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How about an IOU.
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you will send me $50, you will not pass go......sorry couldn't pass it up.
Congrats on the truck!
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post #8 of 9 Old 12-28-2013, 07:52 AM
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Ill take it!

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post #9 of 9 Old 12-28-2013, 08:27 AM
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It's in the mail , LOL have a safe New Year.
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