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03-01-2017, 10:46 AM
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Registered User
Join Date: Oct 2010
Location: blue mtn. ms
Posts: 100
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fuel pump loses it's prime, gas runs back to tank.
75 gmc 3/4 ton, dual tanks, 350, 1406 edelbrock carb. only way to get gas to fuel pump is pressurize the tank, runs good till shut off and gas drains back, have clear fuel filter and soon as shut off it empties. i've change fuel pump and tank selector. i've blown thru all lines, all are clear. doesn't matter if gas cap is on or off. no leaks. thanks in advance.
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