How long do ignition coils last?

Typically 80,000-120,000 miles. Heat and vibration eventually cause failure.

Can water cause coil failure?

Yes — coil boots can crack and let water in, causing a short. Common after driving through deep water.

High Severity

Ignition System

Coil on cylinder 3 fault.

Common Fix

Replace ignition coil

Estimated Cost (DIY)

$20 - $80

Failed coillikely

Wiringpossible

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How long do ignition coils last?: Typically 80,000-120,000 miles. Heat and vibration eventually cause failure.
Can water cause coil failure?: Yes — coil boots can crack and let water in, causing a short. Common after driving through deep water.

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