Exhaust System - Exhaust Filter 80% Full Regneration Required - Dodge Cummins Diesel Forum
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post #1 of 106 (permalink) Old 01-02-2011, 01:26 PM Thread Starter
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Exhaust System - Exhaust Filter 80% Full Regneration Required

Earlier this morning I got in my truck to go to the neighboring pasture. When I started it I noticed two lights were on, the CEL and the lightning bolt sign (I forgot what that meant). When I arrived I heard a ding and looked at the overhead console and saw "Exhaust System- Exhaust Filter 80% Full Regeneration Required".. Do I need to take the truck in and get it cleaned out? And should I not drive it til it's fixed? Except to get it to the dealer

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post #2 of 106 (permalink) Old 01-02-2011, 01:29 PM
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You need to drive it as stated in your owners manual. In other words drive until it regens on its own.

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post #3 of 106 (permalink) Old 01-02-2011, 01:34 PM Thread Starter
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So no need to take it to the dealer? And I really want to do deletes on this thing but i'm not mechanic and would probably mess something up o.O
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post #4 of 106 (permalink) Old 01-02-2011, 01:59 PM
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Take it out on the highway and run it hard.....it will clean itself out. Check your air filter and see how dirty it is or check to see if your battery cables are loose.....which may be causing the lighting bolt.

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post #5 of 106 (permalink) Old 01-02-2011, 02:06 PM
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I would take it on the hwy and leave it in 5th gear, that will get the EGT's up quick too and help it burn off quicker.

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post #6 of 106 (permalink) Old 01-02-2011, 03:22 PM Thread Starter
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Well I did that.. And now it's up to 90% full?
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post #7 of 106 (permalink) Old 01-02-2011, 04:00 PM
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Originally Posted by Laguna Grande View Post
Well I did that.. And now it's up to 90% full?
You're not supposed to stop until it says regen complete. How long did you drive?

You're looking at at least 45 minutes of driving at highway speed without stopping, probably more. You need to get to the nearest highway on ramp and drive! You need to get the exhaust temps up fast and not let them go down, meaning do not do any stop and go if you can help it. When it hits 100% it'll go into reduced power mode, and you'll most likely have to go to the dealer. Page 65 of my manual has all this info.

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post #8 of 106 (permalink) Old 01-02-2011, 04:08 PM Thread Starter
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You're not supposed to stop until it says regen complete. How long did you drive?

You're looking at at least 45 minutes of driving at highway speed without stopping, probably more. You need to get to the nearest highway on ramp and drive! You need to get the exhaust temps up fast and not let them go down, meaning do not do any stop and go if you can help it. When it hits 100% it'll go into reduced power mode, and you'll most likely have to go to the dealer. Page 65 of my manual has all this info.
Page 65 of my manual is something about seat restraints.. Anyways, the nearest on ramp is in houston.. an hour and 30 minutes from here of stop and go back roads
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post #9 of 106 (permalink) Old 01-02-2011, 04:11 PM
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You might try hooking a heavy trailer to the truck and find a loop that you can drive while towing in 5th gear to do the regen.

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post #10 of 106 (permalink) Old 01-02-2011, 04:20 PM
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Page 65 of my manual is something about seat restraints.. Anyways, the nearest on ramp is in houston.. an hour and 30 minutes from here of stop and go back roads
Ok, I was just giving you the page so you could see the info first hand.

Well, a highway isn't absolute required, the point is you just need to drive it - and drive it hard at this point. Driving on the highway lets the the regeneration cycle do it's thing most efficiently, but you can still clean it out if you can maintain decent speeds. One thing is certain, don't idle the truck or putt around at all until you get the regen complete or the % full goes away. I would take the truck out and drive until either happens. Put the pedal to the floor every straight away. Good luck, thank the EPA.

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post #11 of 106 (permalink) Old 01-02-2011, 04:23 PM
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You might try hooking a heavy trailer to the truck and find a loop that you can drive while towing in 5th gear to do the regen.
That's a good idea too. Hook up some weight and you'll be building up heat easier, especially if it's slow going back roads.

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post #12 of 106 (permalink) Old 01-02-2011, 05:42 PM
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Why are you guys telling him to go out and drive his truck like he stole it? You just need to get out on the hwy and keep your speed up above 50mph or so and the regen will start around 5 min after you have maintained that speed. After regen has started your OHD will say "regeneration in process". The percentage will go down but if it's like mine after it gets to 70% it'll ding at you then say the regen is complete. Mine just did this last night and it prolly started with in 2 miles of maintaining 50mph and only took 4-5 mile to complete the process. I suppose every truck can be different but that has been my experience with the regen process.
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