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Re: 6.7 Cummins EGR cooler bypass valve
Posted to HD/Fleet Forum on 12/1/2020 4 Replies

I think I'd be looking closely at the fuel system. Lack of boost is very often due to lack of fuel.

I don't know enough about that cooler code but you just might clear it with a thorough cleaning. However, I don't believe that is your power issue. It's also ... Login to read more.

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