What causes ignition coils to fail in a Toyota Prius?

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What causes ignition coils to fail in a Toyota Prius?

Common causes include age-related wear, overheating, moisture exposure, electrical surges, and carbon buildup on spark plugs. Discussing how these factors impact coil life can help prevent premature failure.

Zarnish asked on 13 Feb 2025 16:04:20 pm

1 Answer

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Car Mechanic Expert - on 13 Feb 2025 16:26:16 pm

The common causes of ignition coil failure include:

Age-Related Wear: Over time, ignition coils can lose their ability to generate high voltage due to wear and tear.
Overheating: Excessive heat from engine operation can damage the ignition coil, reducing its lifespan.
Moisture Exposure: Moisture can infiltrate the ignition coil and cause it to malfunction.
Electrical Surges: Sudden spikes in electrical current can damage the coil’s components.
Carbon Buildup on Spark Plugs: Carbon buildup on the spark plugs can lead to poor ignition coil performance and eventual failure.

Preventing these issues through proper maintenance can help extend the life of the ignition coil.