Question about 2003 Pontiac Grand Am

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Will not start. Seems like it is not getting enough gas to start. Trys to but will not. Fuel filter or something else?

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Get a spark plug wrench out and take one of the plugs out. If the plug is wet and smells like gas, then you are dealing with a spark issue. If the plugs are nice and dry and a light tannish, grayish color then you have a gas issue. If the plug is dry, then turn the key to the "on" position but don't turn the engine over. You should hear the whine of the fuel pump building pressure up in your fuel system. If you don't hear that then I would say it is your fuel pump. If you check those things out let me know what you find and I will try to help you till you figure it out.

Good Luck

Posted on Oct 06, 2009

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Could be the filter, pump or, regulator a quick check you can do is look on your fuel rail there should be a shrader valve (looks like a tire valve) use safety glasses connect a fuel pressure tester to the rail(<20 bucks at harborfreight) turn on the key to run and note the press throtle body systems (one or two injectors usally look like a carb) will have about 30 psi Port systems will be higher check your book to be sure. if you dont have a pressure checker use a container or rag to catch the gas and poke the pin in the center of the valve if fuel flows out at a steady rate at least you know there is gas flowing.

Posted on Oct 06, 2009

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Yeah i would change your fuel filter first, if problem still exist, it could be your fuel pump. But before having the fuel pump changed you can have a mechanic check the fuel pressure by having them attached there fuel pressure gage to the ext. pressure outlet which is located conveniently under the hood of your vehicle. This will determine if your pump needs replaced. If not it could be clogged injectors. If this helped give me a thumbs up please.

Posted on Oct 06, 2009

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Try the fuel filter but if not that try the fuel pump relay then try the fuel pump.

Posted on Oct 06, 2009

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