What are the risks of delaying spark plug replacement in a Toyota Prius?

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What are the risks of delaying spark plug replacement in a Toyota Prius?

Ignoring spark plug issues can lead to misfires, damage to ignition coils, and even catalytic converter failure. What are the long-term risks of driving with old o r damaged spark plugs?

Zarnish asked on 14 Feb 2025 16:33:37 pm

1 Answer

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Car Mechanic Expert - on 14 Feb 2025 16:46:08 pm

Delaying spark plug replacement can lead to several issues:

Misfires: Worn spark plugs can lead to frequent engine misfires, which can eventually damage the ignition coils and cause further performance issues.
Reduced performance: The car may struggle with acceleration and fuel economy due to inefficient combustion.
Catalytic converter damage: If the engine misfires continuously, it can cause unburned fuel to enter the catalytic converter, potentially damaging it and leading to costly repairs.

It’s important to address spark plug issues promptly to prevent further damage and ensure your Prius runs efficiently.