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Need some help from the 6th gen experts here - changing my clattering, rattling CCTs today. Rear went fine, easy as pie. Then I gently extracted the front one so as to not disturb the metal cap annnnnddddd out came a CCT with no cap at all, just a rubber bumper completely destroyed and worn through all the way to the plunger’s metal base (see attached pic). I guess I now know the source of the god-awful noises coming from the motor, but any ideas on how this could happen? Could the PO have installed without the metal cap - or could the cap somehow come off while under tension (I assume not)? If the cap was in there somewhere, I’m guessing that would’ve been catastrophic already. I also presume those lost little rubber bits are now swimming in the engine - could that cause major damage if it hasn’t already? As background, I’ve been getting some rattling above 3.5-4K rpm for the last 5000 miles or so, and very loud metallic clatter from the front bank the last time I started the motor - though it idled and revved okay. None of the usual failing CCT idle rattles, but I just had a hunch as it’s the Achilles heel and always a good place to start. Any advice is appreciated, as always.