Question about 2009 Buick Lucerne

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Hi, where is the fuel filter in my 2009 Buick Lucerne with a 3.9?

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Hi There.
you may have to check in the trunk for an inspection panel or remove the gas tank to get to the fuel pump.

Posted on May 01, 2011

  • Larry G
    Larry G Nov 05, 2015

    By the time the fuel pump goes bad it's to late to change the filter.Disconnect battery located under the back seat cushion. You will need to replace complete fuel pump in trunk. Near the back seat on the right. Pull back the carpet, remove screws on metal plate. Remove electric connection. Use hammer and big screw driver to drive the lock ring off. Do not poke a hole in plastic gas tank! Lift the fuel pump out. Reverse steps to install. I bought mine new on for less than $100. Next you will need to check the fuse panel [beside battery] for a burnt fuel relay. Look on the inside of the lid for the fuel relay position. Most likely you will need to replace the entire fuse panel as the socket for on leg of the relay will be burnt. If only using a new relay {cheap}. First clean the female connection {not easy to do}. Squeeze the legs of the relay so they go back into position tight.



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