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Old 02-18-2018, 10:47 PM   #1
Join Date: Nov 2012
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ISL DPF Regeneration

I just bought a 2008 Allegro Bus with the ISL engine. How do I know when it needs to regenerate the DPF?

Wayne Cadieu
2008 Allegro Bus 43 QRP
Cummings ISL
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Old 02-18-2018, 10:58 PM   #2
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There will be a light on the dash & possibly a warning dinger... get a manual for the rig..

Foretravel with tag axle.
retired truckdriver with 5m miles
Orygun Native
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Old 02-19-2018, 01:58 AM   #3
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Location: Bonney Lake, WA
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On our ISL400 it will auto regen. If the light appears it should run a auto regen cycle as you drive and you may not notice the increase in rpm when it does that. If the light remains on then a problem is indicated. As previously stated the manual is important to understand the system. A visit to Cummins for info was also helpful for me. Ours stayed on and that was followed by the engine light and auto shutdown. NOT FUN! The cause was a cracked and leaking hose which caused abnormal temps and tricked the system.
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Old 02-19-2018, 05:34 AM   #4
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It should take care of itself but you need to get an owners manual so you recognize the symbols that come up on some sort of device readout.

It is important to let the regen takes its course once started. Plugged DPF will shut you down.

Put the word "regeneration" in the little box above that has the Google search box with the IRV2 box checked. It will take you to hours of reading if you desire.
Myron & Deborah
08 HR Endeavor 40 SKQ
2012 Ford Edge Limited FWD 3.5L
Aluminator tow bar, Demco base plate
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