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Old 09-25-2021, 08:47 AM   #1
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DPF light on then stop engine

2016 pheaton dpf light came on...then flashing..then engine lite..then stop engine now only stop engine and engine lite on ...no power. The book suggested regen but can't initiate regen due to dpf lite not on now...i am on the side of the road any insight? This happened all in 4 miles from home
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Old 09-25-2021, 08:59 AM   #2
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Originally Posted by markmiiler View Post
2016 pheaton dpf light came on...then flashing..then engine lite..then stop engine now only stop engine and engine lite on ...no power. The book suggested regen but can't initiate regen due to dpf lite not on now...i am on the side of the road any insight? This happened all in 4 miles from home
It appears you need a "forced regen" which might require a service tech with a computer to initiate. Some coaches, possibly yours, can initiate the regen through the on board computer diagnostic display, but it will take someone familiar with your particular coach/chassis to advise.


Stay tuned.
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Old 09-25-2021, 09:08 AM   #3
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Quote:
Originally Posted by markmiiler View Post
2016 pheaton dpf light came on...then flashing..then engine lite..then stop engine now only stop engine and engine lite on ...no power. The book suggested regen but can't initiate regen due to dpf lite not on now...i am on the side of the road any insight? This happened all in 4 miles from home
First rule on a DEF engine is when the DEF light come and don’t slow down. When the stop engine light comes on do not shut the engine off. The engine will go into derate and while you won’t have a lot of power you can virtually always get to a shop. Often if you keep driving it will do a region and the lights will go out. But the rest of the posters are correct you may now need to take it to a shop with a computer and do a forced regen.
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Old 09-25-2021, 11:03 AM   #4
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First rule on a DEF engine is when the DEF light come and don’t slow down. When the stop engine light comes on do not shut the engine off. The engine will go into derate and while you won’t have a lot of power you can virtually always get to a shop. Often if you keep driving it will do a region and the lights will go out. But the rest of the posters are correct you may now need to take it to a shop with a computer and do a forced regen.
The OP's warning was a DPF light, not DEF.


Your warning is still valid, however, should a DEF light appear.
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Old 09-25-2021, 04:01 PM   #5
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WE had the same problem last year and needed to be towed in for a Forced Regen.
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