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Transportation → Autos & motorcycles → Auto and truck parts, maintenance, and tuning → Car and truck engine maintenance → Auto engine troubleshooting
ANSWERS: 2
  • csimme01 and Ninja Cooper UNMASKED
    The fuel pump relay is used by one of the vehicles computers to turn on the fuel pump. The relay lets something use a small amount of electric current to switch on something that uses lots of current. Think of it a computer controlled switch. If it is bad the fuel pump will not run and the vehicle won't start.
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  • sloppywet
    it controls the fuel pump an presure when the regulator gets low presure the computor signals the pump to come on,
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