Spark Plugs

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What is a spark plug?

A spark plug is a device that fits into the cylinder head of an internal combustion engine and ignites the compressed fuel and air mixture by means of an electric spark.

What is the purpose of a spark plug?

The purpose of a spark plug is to provide a spark that is strong enough to ignite the air/fuel mixture in the engine's cylinders for combustion.

How do I know if my spark plug is faulty?

You can tell if your spark plug is faulty if your vehicle is having trouble starting, has poor fuel economy, or is producing a rough idle.

Can a faulty spark plug cause damage?

Yes, a faulty spark plug can cause damage to the vehicle's engine. A faulty spark plug can cause incomplete combustion, which can lead to fouled spark plugs, increased emissions, and engine damage.

How do I replace a spark plug?

To replace a spark plug, you should:

  1. Disconnect the negative cable from the battery.
  2. Remove the spark plug wires from the spark plugs.
  3. Use a spark plug socket and wrench to remove the old spark plug from the engine.
  4. Install the new spark plug into the engine.
  5. Connect the spark plug wires to the new spark plug.
  6. Reconnect the negative cable to the battery.