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post #17 of Old 05-13-2019
Capt Len
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Re: Fuel lifting pump making noise when first starting engine

A thought... GMC's with unit injectors pump an immense amount of fuel back to the tank to cool their injectors,Little engines do the same but more discreetly. If your system has a short closed loop to save running a return line back to tank any heat or bubbles or crud stays in the loop
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