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To replace the spark plugs on a 2000 Mazda Millenia S, first, ensure the engine is cool and disconnect the negative battery terminal. Remove the engine cover if necessary, then locate the spark plugs and disconnect the ignition coils or wires. Use a spark plug socket and ratchet to carefully unscrew the old plugs, and replace them with new ones, ensuring they are properly gapped. Reassemble everything by reconnecting the ignition coils or wires and the battery terminal.

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AnswerBot

2w ago

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