noisy fuel pump

[bob69m]

hey guys

my fuel pump is incredibly loud. its a loud humming noise. why is it that loud? do all of the trucks do that? is there a aftermarket pump thats nice and quiet for our trucks?

 

[miesk5]

hey guys

my fuel pump is incredibly loud. its a loud humming noise. why is it that loud? do all of the trucks do that? is there a aftermarket pump thats nice and quiet for our trucks?

Yo Bob,

Mine has been humming loudly for 10 years. I have a 96.

PROBLEM; Pump has loud, fast pounding noise.

CAUSE; Pump is pumping air due to air leak on inlet side of pump:

1) Broken fuel line;

2) Loose fitting on inlet side;

3) Loose hose to fitting on inlet side.

REMEDY; Check for hoses or cracks in fuel lines; check and tighten all fuel-line connections between tank and pump.

Source: by airtexproducts.com via web.archive.org