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Honestly, there is no longer a tune up. If you follow your scheduled maintanence intervals then that is all that is needed. The fuel filter and pcv valve should be replaced every 2 years. Also service the transmission at that time. At about 90,000 to 100,000 miles the plugs are due to be replaced. A word to the wise, always use AC spark plugs in a GM product.

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17y ago

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