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Old 03-11-2019, 04:33 PM   #4
Wildlife
 
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Join Date: Apr 2018
Location: BC, Canada
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Vehicle: '93 D21 KC 4x4, VG30E
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Hey, I get the same noise I think; kind of a low buzzing hum, starts quick then fades away. Happens shortly after I turn off the engine, then it comes back hours later. I assumed it was pressure in the fuel lines ahead of the pump pushing backwards through the fuel pump, but I really don't know. Would love to know what it actually is; it's a weird hum, makes me think of a cow mooing, but with bees in its throat.
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