Fuel 1991 5.0 Fuel Pump Noise

RJ3264

New Member
Aug 4, 2018
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0
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Waco, Texas
So I bought a walbro 155 lph pump for my 5.0. A few days after I put the pump in I noticed a whining noise. I hear it at idle and sometimes at speed if at low rpm. I’ve heard of 255s being loud but haven’t seen anything about the 155s. Is this just a part of having a walbro or did I get a bad pump?
 
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