Do All Four Ignition Coils Need to Be Replaced Together?
1 Answers
If only one or two ignition coils are faulty while the others remain unaffected, are in good working condition, and have a service life of less than 100,000 kilometers, it is not necessary to replace all of them. However, if the mileage exceeds 100,000 kilometers, it is advisable to replace all the ignition coils together. Here is some information about ignition coils: 1. The core components of the ignition system are the ignition coil and the switching device. Increasing the energy of the ignition coil allows the spark plug to generate a sufficiently energetic spark, which is a fundamental requirement for the ignition system to adapt to the operation of modern engines. 2. A typical ignition coil contains two sets of windings: the primary coil and the secondary coil. The primary coil is wound with thicker enameled wire, usually around 0.5-1 mm in diameter, with approximately 200-500 turns. The secondary coil is wound with finer enameled wire, typically around 0.1 mm in diameter, with approximately 15,000-25,000 turns. 3. Ignition coils are categorized into open-core and closed-core types based on their magnetic circuits. Traditional ignition coils use an open-core design, with the core made of stacked silicon steel sheets about 0.3 mm thick, around which the primary and secondary coils are wound. Closed-core ignition coils use an I-shaped core for the primary winding, around which the secondary coil is wound, forming a closed magnetic circuit with the core.
