100,000 miles according to the factoryspec.
Wiki User
∙ 2009-04-07 04:07:58take it to the dealer
No, the spark plugs and O2 sensor are totally different things. that is not right!! they are the same things!!
The 2003 Chevrolet suburban spark plugs should be changed every 30,000 miles. The life of the spark plug is dependent upon the driving habits of the automobile driver.
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Most came with a V-8 engine, which took 8 spark plugs.
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