Question about 1993 Chevrolet K1500

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Fuel pump not staying on 1993 k1500 350

Truck sat for 2 yrs ... upon trying to start fuel pump would not remain running . sometimes runs for a few seconds to a few minutes and some times runs for an hour. but will not remain running. once fuel pump stops hit or miss if turning ignition will start pump again. replaced: fuel pump, fuel pump relay, fuel filter, fuel strainer, and ecu

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  • drz76 Feb 13, 2009

    ran out checked oil sensor and gauge .... holds 30psi while cranking and fuel pump will not turn on ... when it did and started when pump cut off oil pressure was about 45psi

  • Anonymous Mar 19, 2014

    hit fuel pump reset truck started and ran for few mins. i cut it off would not start again

  • Anonymous Mar 23, 2014

    E 350 1988
    runs for about 12 miles then fuel pump stops pumping let it set for 30 mints starts up go for another 12 or so miles stops

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  • Chevrolet Master
  • 6,674 Answers

Some GM products also incorporate the oil sender switch into that circuit for fuel pump, so that in case of an accident, engine shuts off, oil pressure drops, in turn, shuts off power to fuel pump. May be worth a look at what your getting for oil pressure, as well as checking switch/sender.

Posted on Feb 13, 2009

  • Mike Butler
    Mike Butler Feb 13, 2009

    You've confirmed no power to pump connection when this occurs correct?

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