#Symptoms of bad spark plug wires how to#

Let’s quickly look at the common symptoms of lousy ignition cables. Failure to track down the cause of these signs and fix them on time might lead to more significant problems. When they start failing, you will notice several symptoms of faulty ignition leads that pop up to tell you something is wrong.

The spark plug wires play a vital role in any vehicle’s electrical system. Signs and symptoms of bad spark plug wires

#Symptoms of bad spark plug wires how to#

Knowing the symptoms of bad spark plug wires, how to test them, and how to replace them will save you a lot.

As they work as transmitters that transfer the spark required for the engine to operate, they will negatively affect the engine’s performance when they fail to transfer the necessary spark needed for the engine to run optimally. The spark plug wires are manufactured with low resistance, durable material that can stand harsh conditions under the hood, as well as the high voltage of the ignition system. The spark plug wire’s primary work is to transmit spark from the distributor or ignition coil to the spark plugs. The ignition system works by creating Sparks at predetermined intervals in order to ignite the air/fuel mixture in the combustion chamber. While most newer cars are designed with ignition coils, some passenger cars and trucks still use spark plug cables. The high tension lead, typically known as spark plug wires or ignition cables, are ignition system components.