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SportTrac Discussion
Engine & Drivetrain
Anyone replaced their own fuel pump yet?
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<blockquote data-quote="Mike Wilson" data-source="post: 560896" data-attributes="member: 62656"><p>Doug, </p><p></p><p>You have flow cooling, and static cooling. Flow cooling is when the fuel</p><p></p><p>is running through the pump, and static cooling is related to the amount of</p><p></p><p>fuel your pump is sitting in in the tank. If you don't normally run your tank</p><p></p><p>on or near empty, neither of the above should be a real problem for you. </p><p></p><p>If you do run on or near empty, "air infiltration" or "cavitation" might be</p><p></p><p>a problem, where as the fuel pump starts to draw air instead of fuel, thereby</p><p></p><p>lessening the cooling effect, since air does not cool as well as a liquid (fuel)</p><p></p><p>in this case. </p><p></p><p>Sounds more like a bad design of the fuel pump in the first place, or an </p><p></p><p>electrical problem causing heat build-up inside the armature of the pump</p><p></p><p>motor itself, which I think would be a more likely cause. </p><p></p><p>Check your fuel pump voltage, primary leads and grounds, for corrosion and</p><p></p><p>resistance, and a fuel rail pressure test at your fuel rail service port,</p><p></p><p>and also your fuel filter for restriction and blockage.<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> </p><p></p><p>(In other words, pressure and resistance = heat!)</p></blockquote><p></p>
[QUOTE="Mike Wilson, post: 560896, member: 62656"] Doug, You have flow cooling, and static cooling. Flow cooling is when the fuel is running through the pump, and static cooling is related to the amount of fuel your pump is sitting in in the tank. If you don't normally run your tank on or near empty, neither of the above should be a real problem for you. If you do run on or near empty, "air infiltration" or "cavitation" might be a problem, where as the fuel pump starts to draw air instead of fuel, thereby lessening the cooling effect, since air does not cool as well as a liquid (fuel) in this case. Sounds more like a bad design of the fuel pump in the first place, or an electrical problem causing heat build-up inside the armature of the pump motor itself, which I think would be a more likely cause. Check your fuel pump voltage, primary leads and grounds, for corrosion and resistance, and a fuel rail pressure test at your fuel rail service port, and also your fuel filter for restriction and blockage.:) (In other words, pressure and resistance = heat!) [/QUOTE]
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SportTrac Discussion
Engine & Drivetrain
Anyone replaced their own fuel pump yet?
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