Spark Plug Wire Information

What are Spark Plug Wires?

• Spark plug wires are used in vehicles to help distribute power for optimal performance. They can help increase your car's overall performance and horsepower output.
  
  

Functions of Spark Plug Wires

• Spark plug wires transfer energy between the engine coils and the spark plugs. Spark plug wires do not produce any additional energy for use by the vehicle. Their purpose is to assist in the movement of power throughout the car.
  
  

Signs of Malfunction

• Power loss is a sign of spark plug wire malfunction. If you notice your engine sputtering, or taking a longer time to accelerate, check the wires for signs of wear. A tune-up can help with this problem.
  
  

Types of Spark Plug Wires

• There are three types of spark plug wires. Distributed wires are made from graphite with a fiberglass core. Inductance wires are constructed from a copper and nickel alloy. Fixed resistor wires are made from steel or copper.
  
  

How to Replace Spark Plug Wires

• To replace spark plug wires connect the new wires to the spark plugs and ignition coils. Some cars require the wires to connect to the distributor cap. Spark plug wires are available at auto parts stores.