Have you noticed unusual engine noises like knocking o r ticking, and later discovered the spark plugs were the culprit?

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Have you noticed unusual engine noises like knocking o r ticking, and later discovered the spark plugs were the culprit?

Bad spark plugs can cause abnormal combustion sounds. Have you experienced knocking o r strange engine sounds that disappeared after replacing the plugs?

Lubaba asked on 07 Aug 2025 15:39:10 pm

1 Answer

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Car Mechanic Expert - on 07 Aug 2025 15:42:28 pm

Yes, in several cases, ticking sounds, knocking, o r pinging during acceleration were traced back to worn-out spark plugs. Once the plugs were changed, engine noise normalized, confirming their role in abnormal combustion.