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If your Buick LeSabre has starting running very poorly, or stopped running entirely while showing symptoms of lacking spark, your Buick LeSabre ignition coil is most likely the cause.
Any time the Buick LeSabre ignition wires exhibits physical damage either to the ignition wire or the boots, the Buick LeSabre spark plug wires should be replaced as preventative maintenance.
Buick LeSabre Copper and Platinum Spark Plugs by Bosch, Denso and NGK. Replace the Buick LeSabre spark plugs once a year for optimum vehicle performance and increased fuel mileage.