Question about 1998 Buick LeSabre

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Dash lights and headlights are flicker on my 2000 Buick LeSabre limited. Any solutions? Also the abs and traction control light won't go off.

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  • waynejhearn Jun 07, 2010

    Just read the voltage on my meter and it reads between 13 and 14 volts.

  • waynejhearn Jun 07, 2010

    yes the voltage does go up and down a little. i will get the alternator checked in the morning. Thx a lot very helpful!!!

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  • Master
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Traction light is on because the abs is on.Traction control needs to have the abs system fully functioning to work.Most common cause of abs light is a wheel speed sensor.As for your lights flickering the alternator may be going out or you have a poor ground connection.Would check battery cables first to make sure they are tight.

Posted on Jun 07, 2010

Testimonial: "very good advice!!! thx"

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  • Buick Master
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I would have the alternator checked,even if the alternator shows it is charging,it still could be the problem,the voltage needs to be checked at the battery,with the headlights on,and the ac on high blower setting.It should read 13.65 volts,to 14.25 volts,if it is any less than this,or over this,the alternator needs to be replaced.

Posted on Jun 07, 2010

Testimonial: "very good advice!!!"

  • Ronny Bennett Sr.
    Ronny Bennett Sr. Jun 07, 2010

    Is the voltage moving up,and down just a hair?If so,then the alternator is the problem.When a diode,in the diode bridge has gone out,the voltage will go back and forth,this is what causes the lights to flicker,it is a ac voltage leak,and the alternator has diodes to turn ac voltage into dc voltage,cause the car runs on 12 volts dc directional voltage,it is a early stage of the alternator going out,and it is not good for any,of the components that run the engine.

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