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A 2000 Blazer uses Platinum plugs that don't have a gap requirement. You just buy 'em and put them in. But good luck... They are buried down low in the engine compartment and hard to get to. the spark plug gap can be found on your vehicle emissions information sticker. It's white in color and located under the hood. Also most parts stores can look up that information for you and not all plugs come pre gapped so don't assume it's best to check just in case.

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17y ago

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