The noise is in time with RPM's, the faster the engine is turning, the faster the ticking noise. It seems to get louder under load, but don't quote me on that. The spark plug thing is something I'll check in the AM...I had an old VW that had a bad habit of puking the #3 plug, because the threads were damaged, and the damn thing ran fairly well, but got REALLY noisy. I was wondering about the oiler tubes too, it just seems odd that it came on so quickly.

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2002 Ford ZX2
2 x 2013 Honda Civics