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How is it there still a misfire on cylinder 3 on a 03 Chevy Impala even after changing spark plugs and wires and coil pack?
Wiki User
∙ 14y ago
Did you gap the spark plugs before u inserted them into the block casue that can have a big effect.
Wiki User
∙ 14y ago
Wiki User
∙ 6y agoCould be a faulty number 3 cylinder fuel injector.
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