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What are the symptoms of aging in automotive ignition coils?

1 Answers

DelEli

07/29/25 4:31am

If the ignition coil is aging, the simplest and most direct symptom is that when opening the engine compartment, you can observe signs such as adhesive overflow, cracking, connection tube issues, or erosion of the high-voltage terminal on the ignition coil. Ignition coil maintenance recommendations: 1. Prevent the ignition coil from overheating or getting damp. 2. Do not turn on the ignition switch when the engine is not running. 3. Regularly inspect, clean, and tighten wiring connections to avoid short circuits or grounding. 4. Control engine performance to prevent excessive voltage. 5. Any moisture on the ignition coil should only be wiped off with a cloth; never use fire to dry it, as this could damage the ignition coil.

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