Question about 1999 Pontiac Grand Am GT

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Fuel seems not to reach the fuel injectors - 1999 Pontiac Grand Am GT

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  • Anonymous Jan 25, 2009

    car wont start, fuel will not reach the injectors!!!!! before car broke, the dash was going crazy.

  • Anonymous Apr 27, 2009

    Oh, man, I need help on the same problem. My father is working on a 1999 Pontiac Grand Am and I am merely the typist. He is 80 years old, so he's old school. This means, he's mechanically inclined, but not so pre-disposed to computers - online or in the car. Meanwhile, here's the car situation:

    *Car has spark, turns over, but won't start
    *Done most preliminary tests described in all of these forums
    *Looking to rule in/out fuel injectors/fuel pump pressure regulator
    *Would appreciate DIAGRAMS, tips, etc. on how to better-isolate this problem

    Or you could just come on over and work on it!

    Thank you for your PATIENCE and EXPERTISE! 

    I love a mechanical mind!

  • LaZyJeStYr May 11, 2010

    More Info on 1999 Grand Am SE 3.4 6V Fuel Injector Problem -

    preliminary testing shows there is pressure, just not sure how much & don't have a pressure gauge to check. Also, they used starter fluid to start the car, so they know it will start, just not run. They think it's not getting gas or the fuel injectors aren't working.



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LaZyJeStYr needs a new car.

Right Kristi?

Posted on May 13, 2009

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Have you tried checking the Camshaft position Sensor? The camshaft position sensor, in conjunction with the crankshaft position sensor determines the timing for the fuel injection on each cylinder. The cam shaft position sensor is a half-effect device triggered by a magnet on the camshaft. Also, it sounds like it could be the one-way valve. See, fuel is drawn through an inlet screen into the pump, flows through the one-way valve passes through the fuel filter and is delivered to the fuel rail and injectors. The pressure regulator maintains a constant fuel pressure to the injectors. The injection quantity is is determined by the length of time the valve is open. Hope this helps

Posted on Mar 11, 2009


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