Question about 2004 Buick Century

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2000 buick century. starts and idles but cannot accelerate. engine sputters during acceleration.

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  • meshellz1 Apr 25, 2009

    fuel press reg was changed about 3 weeks ago. just changed the fuel filter. now car starts, idles and accelerate fine when eng is cold. once eng warms, it starts to sputter through acceleration. no trouble code or light.



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Fuel filter or fuel pressure regulator or tps sensor

Posted on Apr 19, 2009

  • Misty Vanarsdale Oct 16, 2012

    I may have to check that out because it seems to me that it happens when I want to gain speed and I give it gas. Thank you for your suggestion it is much appreciatated.



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Code po507 came up on my 2000 Buick century. Service engine light flashes when I accelerate and vehicle runs rough. Any help diagnosis on this?

That has to do with your idle air control valve (IAC). It is controlled by the pm and more diagnostic tests are needed to narrow down exactly where the problem lies. Check all wiring and connection to IAC and pcm 1st.

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Sounds like it could be the fuel filter. Typically when they get clogged the car will run but can't get enough gas during hard acceleration (it sputters) or can't go too fast ( it just dies out and then picks up again ) . You can try replacing it ( follow the gas line from the tank to find it ), they're not expensive, just be careful when you take it off, the gas can squirt all over.

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My 2000 Buick Century will not crank or stay runing unless i have and keep my foot on the accelerator long as i have my foot on the accelerator it will continue running, i have tried a new fuel filter and...

When you say "not crank," I am assuming will not start. This COULD be a problem with your idle air control valve. Is the check engine light on? If yes, check those first. Otherwise try cleaning the IAC. It might be clogged. You can get a repair manual from any parts store to find out its location and any other info you might need. It will help you with other necessary repairs as well. In many vehicles, the IAC is usually connected to the throttle body. Good luck.

BTW, the IAC controls the idle RPMs when throttle (accelerator pedal) is not applied.

Jan 01, 2011 | 2000 Buick Century

1 Answer

2000 Buick century custom only has heat when you accelerate fast but puts out cold air when you accelerate normally or at a steady speed.

Check your coolant level. Not enough fluid in the radiator to circulate when the engine is operating normally.

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1 Answer

97 buick century sputtering and stalling

He has gotten a bad load of fuel. Try a can of dry gas to emulsify the water, but if there is too much for the dry gas to handle, the tank may have to be cleaned. I would also replace the fuel filter also, the gas may also be dirty enough to restrict the filter.

Jul 10, 2009 | 1997 Buick Century

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