Tag: engine misfire causes

11 Warning Signs of a Bad Ignition Coil and How to Fix It

Close-up shot of a light-skinned man, around 30 years old, holding a black ignition coil in his left hand and a socket wrench in his right hand

If your engine isn’t running quite right shaking, stalling, or guzzling petrol your ignition coil could be to blame. This small but crucial component is what sends high-voltage power to your spark plugs, enabling proper combustion in each cylinder. But when it starts to fail, it can cause a ripple of performance issues, increased emissions, and even damage to your catalytic converter. In this guide, we’ll walk you through the key symptoms of a failing ignition coil, how to diagnose the issue properly, and what to do next. Whether you're a DIY enthusiast or simply want to understand your mechanic better, here's what you need to know. 11 Symptoms of a Failing Ignition Coil 1. Check Engine Light The most...

Keep reading Published on: 6/Aug/2025

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