Question about 2002 Buick LeSabre

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When should fuel line be cleaned and gas filter replaced on 2002 Buick LeSabre

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I don't know exactly what manufacturer recommends on those but if you change it every 20K miles or two years it would not be a bad thing. The filter is not terribly expensive and is not really difficult to replace. Changing it eliminates any partial restriction and makes the fuel pumps job a bit easier and helps protect all components downstream.

Posted on Oct 03, 2009

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  • Richard Scordino Oct 03, 2009

    One note about fuel most fuels in the USA contain ethanol (alcohol) at as much as 15%, it is not advisable to add anything containing more of that to the system Most dry-gas is generally either ethanol or methanol which are both alcohol. I suggest you add nothing more.


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Filter should be changed every fall as a preventive measure. If you are in a cold climate, also add a can of gasoline dryer/water remover for good measure.

Fuel lines normally never need cleaning.

Posted on Oct 03, 2009

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The car lurches and lunge at times as if it is not getting fule properly, I want to change the fuel filter but not sure where it is located

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I have the same problem with the "lurch and lunge". I cleaned my MAF Sensor, changed my plugs and ignition wires, and now changed the fuel filter. The car runs much better, but I still get the "lurch and lunge" if I step hard on the gas after slowing down (like for a turn). So, if I hit the gas hard when I'm going around 10mph, it still happens.

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