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Old November 9th, 2013, 04:42 PM   #3
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first question sound like a priming pump, but why he added it ??? Maybe his fuel system had an air leak and would loose prime over night?

Second, "in general" blue smoke is oil, White is unburned diesel, black would be partially burnt fuel. I'm not too familiar with the 6.9, but my guess would be valve guides.
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