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Cummins Diesel related emissions info. based on news and OEM updates. Most of the engine and Exhaust Aftertreatment pictures are from my own shop, actual failures or maintenance being completed on the Cummins 5.9L, 6.7L and 8.L ISB ISC ISL engines. Isuzu, FORD, GM. Diesel Exhaust Fluid related failures. DEF in Diesel Fuel failure.
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Follow up testing completed, engine runs great and no crankcase issues.
Will note that the Coalescing filter was very dirty - oil soaked. This maintenance item is probably the cause of most issues related to crankcase pressure.
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