Do All 4 Ignition Coils Need to Be Replaced Together?
1 Answers
If only one or two ignition coils are faulty, while the others remain unaffected and in good working condition with a service life under 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. Relevant information about ignition coils is as follows: 1. The core components of the ignition system are the ignition coil and the switching device. Increasing the energy of the ignition coil enables the spark plug to generate a spark with sufficient energy, which is a fundamental requirement for the ignition system to meet the operational demands of modern engines. 2. A typical ignition coil consists of 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 silicon steel sheets about 0.3 mm thick, around which the primary and secondary coils are wound. Closed-core ignition coils feature a core shaped like the Roman numeral III, with the primary coil wound around it and the secondary coil wound outside, forming a closed magnetic circuit with the core.
