Question about 1999 Buick Century

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1999 Buick Century V-6

My check engine light stays on and I am having trouble accelerating. When I come to a complete stop, it feels like its going to stall out.

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  • Chuck Finn
    Chuck Finn May 11, 2010

    Can you tell me what the codes are. How long has this been happening?

  • Chuck Finn
    Chuck Finn May 11, 2010

    Do you know what the code is that is causing the check engine light? It can help in the diagnosis.


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What is the code? I suspect the MAF (mass air flow sensor) but until I know for sure I am only guessing

Posted on Sep 19, 2008

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Sounds like a fuel pressure issue. When you release the pressure in the fuel tank, the pump may have difficulty re-pressurising the system. Another possibility is the the one-way check valve in the fuel pump is faulty, and fuel drains back to the tank while you are fueling. There also exists the possibility that the tank is being overfilled, and the fuel return line is being blocked, causing an OVERpressure situation in your fuel rail, which might explain why the engine runs when you hold the accelerator pedal down. How about your fuel filter; when was it last replaced? Is the check engine light on? Take it into a qualified garage and have the codes read. Maybe the mechanic will be able to point you in the right direction.
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Car problems and

good question, but they are not related, they are on 3 completely different circuits and un related in anyway, the gas guage is most likely the sending unit in the gas tank is defective, the check engine light will require a trouble code test of the system, any Kragen or Autozone can do this, it's free.

Mar 11, 2009 | 2001 Buick Century

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