Question about 1999 Chevrolet S-10 Pickup

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2.2 shuts off and fuel pump will not turn on

When I am driving, it shuts off for a split second, then it keeps going. sometimes it turns off and fuel pump will not turn on. Started & alternator are fine. I thought it was the fuel pump & I replaced it with a new pump and fuel filter, but made no difference. Could it be computer related?

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  • Anonymous Aug 05, 2008

    I swaped the fuel pump relay, but still when i am driving it wants to shut off, gas cuts off and gauges light up for a split second, then it just keeps going?

  • Sdime Feb 04, 2009

    the problem was that the jet power modual was loose, therefore makeing the fuel pump turn off

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Sounds like the "run" fuel pump relay is going bad. This truck should have two different fuel pump relays on it. One for the start cycle and one for run. They should be in the fuse block under the hood. I don't know which one it is though but you should be able to tell by feeling them while someone else cycles your keys on and off. Note that if the fuel pump has already pressurized the fuel line it may not kick on when you turn the key.

Posted on Aug 02, 2008

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