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match the spark plugs up in this order, left side you have 1 2 3 (names of the wires) and right side you have 4 5 6 for the wires you need to put the longest which is 3-6 second longest 2-5 and shortest will reach the 1-4 plug ins

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Q: How do you change spark plug wires on a 2003 Chevy astro?
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