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Q: 3800 litter on 1990 Buick LeSabre

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
i have a lesabre that runs but when it idle rough and some times shouts down changed plugs wires and egr fuel filter just cant figer it out
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