Not that I recall. I've just replaced the PCV valve, there was no rattle in the old one, until I hit it. Leaves sooty crap on the drive too.
It idles and runs as smooth as you like, never diesels, misses, nothing. It uses none, or very little, oil or coolant, all pressures and temps behave normally.
It completed an 1100km round trip in one day a couple weeks ago like a champ.
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1977 Pontiac Grand Prix SJ
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