An ignition coil (also called an ignition coil) plays a crucial role in your engine's ignition process. If a coil fails, you'll often notice it immediately behavior of the carThe sooner you recognize it, the better – because continuing to drive with a broken coil can lead to greater engine damage.

What exactly does a coil do?

A coil converts the low voltage from the battery into the high voltage needed to fire the spark plug. Without a good spark, there's no combustion – and therefore no smooth-running engine.

Symptoms of a broken coil

✔️ Stuttering or hesitation when accelerating
The engine runs irregularly and feels as if it is 'holding back' when accelerating.

✔️ Idle walking or shaking
The engine runs irregularly when standing still – often with noticeable vibrations.

✔️ Engine runs on fewer cylinders
If one or more coils fail, the engine will not run on all cylinders.

✔️ Less power and poor throttle response
The car feels sluggish and responds with delay to the accelerator pedal.

✔️ Increased fuel consumption
Incomplete combustion causes the ECU to try to supply more fuel.

✔️ Check engine light (check engine)
Often an error light appears in combination with error codes such as misfire detected.

Is it dangerous to continue driving?

Yes. Continuing to drive with a broken coil can lead to:

• Damaged spark plugs

• Unburned fuel in the catalytic converter (which can destroy it)

• Poor lubrication and higher engine temperatures

Replacement is often simple and affordable – and prevents a lot of misery.

Advice from JT Products

Bee JT Products do you find high-quality coils For virtually all brands. We supply only parts that have been tested for reliability and performance – even for tuned or heavily loaded engines.

Not sure if your coil is faulty? Contact us – we're happy to help with technical advice or a replacement part.