Question about 1997 Pontiac Grand Prix

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How can i tell if the fuel pump is bad - 1997 Pontiac Grand Prix

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Most will tell you to listen to it hum when you 1st turn the key to ON (not starting) but if you are having other issues it will not prime and hum at all. If the computer, asd relay or crankshaft sensor is bad then it will not be supplied power and car wont run. Could lead one to think it's the fuel pump but really something electrical elsewhere. Depends on your actual problem with the car.

Posted on Sep 02, 2010

  • Stephen Oct 21, 2011

    Check engine light on. Will the fuel pumps work independently? Where should I start tracing for power, at the crank sensor or the wires coming from the tank?
    Thanks

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WHEN FUEL PUMP GOES BAD.CAR WILL SURGE A LOT ON ACCELERATION CAR.STALL OUT ALOT.THEN IT WILL NOT START CONDITIONS.BEFORE BUYING NEW FUEL PUMP REPLACE FUEL FILTER.FUEL PUMP RELAY CHECK FUSE TO FUEL PUMP MAKE SURE ITS IN TIGHT NOT LOOSE.

Posted on Sep 02, 2010

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When you turn the key on to the accesory position you will hear it hum back by the gas tank but it will only do it for a few seconds till the pressure is built up. that means its wsorking. if it does make noise it has power if not you can try banging on the gas tank under the car and this might make it work temporarily and if it does work get a new fuel pump.

Posted on Sep 02, 2010

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