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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.
JUSTANSWER TECH HELP
About Me
- Bud
- Hi, I have been in the transportation industry for well over twenty-seven years, a trained mechanic, hands on as well as specific OEM training and experience. Connect with me on LINKEDIN @ www.linkedin.com/in/budcountryman
1 comment:
The EGR Delete valve controls a small passageway between the intake and exhaust manifolds. When the valve opens, intake vacuum draws exhaust through the valve. This dilutes the incoming air/fuel mixture and has a quenching effect on combustion temperatures which keeps NOX within acceptable limits. As an added benefit, it also reduces the engine's octane requirements which lessens the danger of detonation.
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