Question about 2001 Pontiac Grand Am

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What is fuel pump specs on 2001 Grand Am 3.4?

Has 50 psi key on. drops to 42 running. But will not stay running.

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#1: Is this your first encounter with this issue, and have you changed any Pump, Sensor or FPR, since its a 2001, if not what are the Miles thus far on this vehicle! If you are the first owner, you would have all the answers, if you are not, then ask yourself the questions I am!
I would reset the ECU, and do a fresh diagnostic, if no codes or info on Fuel Pressure Regulator, just replace your dying Fuel Pump! You will be happy for a very long time...
Hope this will help! If you have any answers regarding my questions, feel free to e-mail me: razorinnovations@ymail.com
www.razorinnovation.com

Posted on Apr 02, 2015

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Change your fuel pressure regulator valve simple this is your problem. thanks the FixYA team. if you need further help please let me know. Sounds like that 42 psi keeps dropping until it has not enough pressure to open the injectors and simple starves out of fuel.

Posted on Apr 01, 2015

  • 6 more comments 
  • dial_alan Apr 01, 2015

    Can I unplug the vacuum and see what happens?

  • Shade Tree All Repair

    you can it wont die you are also having a hard very hard time first starting at the beginning of the first start of the day too huh/

  • dial_alan Apr 01, 2015

    Not really. Been sitting a week and a half. Did not spin long to crank. Just shuts right off.

  • Shade Tree All Repair

    ok do this crank it like you been doing let it die when it dies check your fuel pressure then and we can either confirm what im saying or move on to the next problem ok.

  • Shade Tree All Repair

    if it dies then there is 0 fuel pressure or like 10 or less its the regulator if not we need to move on.

  • dial_alan Apr 02, 2015

    Will not stay running with vacuum unplugged. Fuel pressure goes back up when engine dies.

  • Shade Tree All Repair

    So now what you need to do is ohm the fuel pump to check for a shorted motor now.

  • Shade Tree All Repair

    where are you in the process of repair?

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42 lbs should be plenty, does it stutter and stall like it is running out of gas or shut off quickly ? any check engine light on? how long will it run for?

Posted on Apr 01, 2015

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  • dial_alan Apr 01, 2015

    Just shuts right off. My runs for 5 seconds .

  • dial_alan Apr 01, 2015

    The battery was dead so memory cleared.

  • Shade Tree All Repair

    also you need to have your solenoids checked at autozone the Ignition and fuel pump ok.

  • Shade Tree All Repair

    sounds like the fuel pump may not be staying on at all when you release the key or is it??? check please

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