service engine soon light stays on. on 2004 Buick LeSabre

car seem to run fine

by in West Chester, PA on April 20, 2010
1 answer
ANSWER by on April 21, 2010
Look here and you'll see there can be hundreds of possibilities for this light to be on: http://repairpal.com/obd-II-code-chart You'll want to get the codes read out and have a diagnosis performed to know why the light is on.
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