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| Not that I really support particulate filters... but the turbo failure could have soaked the particulate filter with oil and the exhaust heat lit it up. A DEF/SCR engine could do the same thing as it has a catalyst chamber in the exhaust that could catch oil and burn it.
This is what happened with some of the Ford 6.7 diesels early on. Either excessive fuel injection into the exhaust and/or an oil leak from the turbo would lead to the particulate filter catching on fire. Ford fixed their problem by changing the programming to end a regen cycle and cool exhaust temps if the particulate filter got too hot. Not sure why they never did that to begin with though, the trucks were already outfitted with temperature probes. | |
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More info on Jd S 670 picture from previous thread,
