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Re: 2002 Buick sputters when excellerating ??
Had a similar problem with our LeSabre. Initially thought it was transmission, but with the help of this site, narrowed it down to spark. Changed the plug..Changed coil..Turned out to be wires. Replaced them and all was good.
Pull it into a dark garage and you might even see a spark leak to metal. Good luck.
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