When to Change Ignition Wires and Coils


How much does it cost to replace ignition wires and coil? Well, it depends upon the engine in the vehicle you drive.  However, before you replace the ignition wires, coils or coil pack in your car or truck, it is important to do a thorough inspection of the ignition system, including the spark plugs. Once your ignition wires start to wear out, it is much more difficult to deliver a good spark from the distributor or coil pack. As the materials in the plug wires begin to weaken or breakdown, it makes it much more difficult for the voltage to travel from its source to the cylinder where combustion occurs. Typically, the engine will misfire causing a skip or your vehicle may fail to start.

Spark plug wires transfer the spark from the distributor or ignition coil to the plugs that ignite the air-fuel mixture in the combustion chamber of your engine. This process starts with the ignition coil, which transforms low-voltage power into extremely high voltage. The transfer of this energy through the ignition wires creates heat, and over time, the wiring can become brittle, crack or breakdown. A weak or non-existent spark means the fuel in your engine's cylinder will not be ignited. Depending upon how many spark plugs have failed, your car or truck will either run poorly or not at all. That's why it is a good idea to ask the service department to inspect your ignition system whenever you receive a service.

Time and mileage are enemies to your vehicle's ignition wires and coils. Whenever you change spark plugs, it is a good idea to replace the ignition wires and vice versa. This will keep your vehicle running at peak performance and prevent you wasting money on unburned gasoline. In fact, a sudden drop in gas mileage may be an indicator that your ignition system is not functioning properly. A quick check with an Ohmmeter can determine how much voltage is reaching the spark plugs. If the "Check Engine" light in your vehicle is illuminated, it is important to have someone check the codes to determine if ignition components are the cause.

When it's time to change the spark plugs, ignition wires, ignition coil or coil pack in your car or truck, E3 DiamondFIRE products are built to meet or exceed OEM specifications.  Each coil is designed and optimized for fit, form and function with outstanding mechanical stability and corrosion protection. Our ignition wires have a tempered outer silicone jacket with custom-designed spark plug boots and sleeves for a perfect match. You can visit the "Where to Buy" section of this website or buy online at shop.e3sparkplugs.com. We provide free shipping on all orders over $75.

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