Question about 1995 Buick LeSabre

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I have a 1995 Buick LeSabre Limited and after using a fuel cleaner additive I have had the fuel filter changed twice in the past 4 months, it solves the problem of stalling and sputtering and now the symptoms have returned for the 3rd time. When I fill up the car the symptoms go away. Where is the fuel filter, can I tap it to make it dislodged clog pass? Is it unusual to need to change the fuel filter so often? Could there be something else going on? Thanks Sandra

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  • Master
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Hi.

this does sound a little strange.
you say that the problem goes away when you fill up the tank.

would i be correct in thinking that the fault appears when the fuel has dropped below a certain level in the tank.

if this is the case, then you may have a small hole in the fuel pick up pipe inside the fuel tank.

when the fuel level drops below the hole, it starts to **** air in as well as fuel. when this air gets to the engine, it can cause spluttering and stalling. when you fill teh tank, the fuel level is above the hole and no air gets sucked up.

the pipe is inside the fuel tank and is accessed by removing the fuel sender unit located on the top of the fuel tank.

try checking this first and if it is not the problem, please feel free to ask for more advice

Posted on Apr 10, 2011

  • artbysandra Apr 10, 2011

    Thanks. I need to give you more information. The first time the car did the sputtering and stalling was at 1/2 tank. Then I had the filter changed. Then it went fine for several months then to 3/4 full and started to sputter and I had the filter changed again, That stopped the sputtering and I drove the car to 1/4 full and it started to sputter so I filled it up and it went away. A/o yesterday it sputtered and stalled at 3/4ths full with the new filter of 2 weeks ago installed by my mechanic.

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  • Buick Master
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You may have dirt in the fuel tank that has come loose after using the cleaner.you may have to have the fuel tank removed and cleaned as well as the fuel lines flushed out(blown out) to get all the dirt out of the system.when filling the tank you have induced fresh clean fuel that is pumped through the system before the level gets low enough that it starts pumping the dirt in the bottom of the tank,the fuel filter is located under the car on the passenger side along the frame rail ahead of the fuel tank.it is round in shape and about 3.5"long.you may need the injectors cleaned in case dirt has gotten that far.

Posted on Apr 10, 2011

Testimonial: "Thank you for your information on why my car is sputtering and stalling. I have some education on the problem now.Also thanks for your prompt reply!"

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