FUEL PUMP

Tiny
DOEYS
  • MEMBER
  • CHEVROLET SILVERADO
2000 chev silverado 5.3 4wheel drive no power to fuel pump only for sender checked fuse and relay all good I did notic I only have 1 source of power where the relay is do I need 2 sources and if I do where does it come from thanks
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Thursday, September 6th, 2007 AT 2:22 PM

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Tiny
RASMATAZ
  • MEMBER
If its tied in with the oil sending unit it will look like this, the PCM energizes the relay coil side then the switch side will close to give power to the pump this is how it works-


http://www.2carpros.com/forum/automotive_pictures/12900_oil_sending_unit_and_fuel_pump_circuit_5.gif



Good Luck Hope this helps
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Thursday, September 6th, 2007 AT 3:37 PM

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