91 mustang ??? help!

91 mustang ??? help!
I am having trouble with my 91 mustang lx four cylinder.my fuel pump has a constant humming noise when it is running.please help.Thanks.

posted by  lester

is this a new pump or still the original ?
sometimes the mechanic will forget to reinstall the rubber insulator on the replacement pump allowing the pump to humm
or the original could be worn

posted by  osborste

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