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Re: 6.6 L Duramax Fuel System Questions
Posted to Technical Discussion Forum on 7/17/2015 5 Replies

Lou, take a close look at the fuel filter housing. When it is hot, you may see a little external fuel around it. Also, try pumping the the priming pump on top of the housing at that time as well. if it takes a few pumps to before you feel firm pressure, the ho... Login to read more.

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