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Which way do the spark plug wires go on & what cylinder is what?
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For the Buick V6 231 3.8 liter turbocharged engine:
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Answers!
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Firing order:
1 – 6 – 5 – 4 – 3 – 2.
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Spark plug wire location on coil pack:
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Closest to the back of the car, left to right: 1 – 5 – 3.
Closest to the front of the car, left to right: 4 – 2 – 6.
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Spark plug wire location on engine:
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drivers side, front to back of car: 1 – 3 – 5.
passenger side, front to back of car: 2 – 4 – 6.
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