Q: Fuel pump is louder higher pitched wine?

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My 2001 s10 v6 stalled at a red light but restarted after the second attempt. Ran and started fine for two or three days, then I went to storeand it wouldn't start on the way back. Decided to pump the gas pedal while starting and after pressing full throttle and aggressively reving while cranking got it started and has ran fine so far since. Only the fuel pump is louder high pitched wine. Is my pump going out or can a relay fix the issue?

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