Question about 1997 Pontiac Grand Prix

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I have a 1997 Pontiac Grand Prix GTP. Recently put new fuel pump not even 3 months ago. New fuel filter as well same time. 2 weeks ago from today was going about 55 to 65 mph oil light comes on and car stalls out and thats it.. fire it up and it runs for a min and stalls out, pump is working fine, checked the fuel-pump relay system, took it out half way and the car runs fine, so replaced the relay, and that wasnt it... thought it was wires, but no clue.. any suggestions?

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  • Richard Scordino May 11, 2010

    Removing the relay half way and having some relult shows that it's likely there is a bad connection under the relay, check the underside of the relay socket for corrosion or damage to wiring, especially where the wires enter the connectors. I know, you said you just checked it...do it again.

  • yadayada
    yadayada May 11, 2010

    what is the fuel pressure, does it have spark? U may have an ignition switch issue.

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Having the same problem with mine, have yet to found out the cause but I too suspected the fuel pump resistor. I have read about some people having luck with a procedure that sets the fuel pump speed relay to High (Fuel Pump Resistor Bypass 97-00 GTP). You can find it here http://www.scacgp.com/mods/fuel_fix/relays.jpg

Posted on Sep 13, 2009

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Mine was doing the same thing same year, same model....replaced fuel pump and all that, come to find out it was the fuel pump resistor! you can only get the part from a dealership and it's around 57 dollars...it's on your passenger side of the car towards the head light. you can find the map of it on the net.
jenny

Posted on Aug 04, 2009

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While that still sounds fuel related, you may want to try un-plugging your MAF sensor, a faulty MAF can cause the engine to stall. It's something easy to try anyway...

Posted on Jun 24, 2009

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If you replaced the fuel pump then there is a possibility that during the job then some debris from the tank and/or filter got loose somewhere into the fuel system and is in your lines. It could even be a very tiny speck of gasket material, old or new.

Posted on Jun 20, 2009

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