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How Often Do Spark Plugs Fail? [Solved]

Spark plugs are somewhat durable components and don’t need to be replaced too often, that said, the general recommendation is about every 30,000 to 90,000 miles. Each vehicle may differ on when they should be replaced.

5 Signs It’s Time To Replace Your Spark Plugs

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Customer Replaced Spark Plugs And Now It Runs Bad!?

In this video I have a look a customers Nissan Quest. He recently replaced the valve cover gaskets,

How to Stop Car Hesitation (Spark Plugs and Ignition Coil)

Car hesitation.