Question about 1997 Chevrolet C/K 3500

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Fuel pump doesn't work -

1997 chevy 3500 1 ton 5.7 lter box truck - fuel pump doesn't work - we believe it's electrical.

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The fuel pump operates off the oil pressure switch the first 5 seconds upon starting. to test turn the key to the on position and listen for the fuel pump running. it does this to prime the pressure up and to stat the engine
if not heard replace the oil switch. the way this operates is when the engine reaches full oil pressure the computer shuts off the oil switch and turns on the fuel pump relay to continued the circuit to the pump

Posted on May 27, 2010

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Posted on Jan 02, 2017

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